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  • What Are Rocks and How Do They Form? Crash Course Geography #18

    What Are Rocks and How Do They Form? Crash Course Geography #18

    199 views / 0 likes - added

    From towering mountains to pebbles along a river, the Earth is made of a huge variety of rocks. In today's episode, we're going to follow the rock cycle of a piece of granite in the Himalayan mountains, and as you'll see, every rock has a far-reaching sto

  • What is an Animal? Crash Course Zoology #1

    What is an Animal? Crash Course Zoology #1

    192 views / 1 likes - added

    Check out Animal IQ on PBS Terra! https://youtu.be/Ejhbr_t7BlcSo what is an animal anyway? In our inaugural episode of Crash Course Zoology, well endeavor to answer just that because as it turns out, its complicated! But before we get there well need to i

  • Whats the Most Animal Animal? Crash Course Zoology #2

    Whats the Most Animal Animal? Crash Course Zoology #2

    243 views / 2 likes - added

    Thank you to The Great Courses Plus for supporting PBS. For more information and a trial, go tohttp://ow.ly/zREQ30rDCDz. Picture an animal in your mind right now. What does it look like? A dog? A lion? Maybe a sloth, pangolin,naked mole-rat, or even just

  • 11:22 Comedies, Romances, and Shakespeare's Heroines: Crash Course Theater #16

    Comedies, Romances, and Shakespeare's Heroines: Crash Course Theater #16

    376 views / 1 likes - added

    This week we're continuing our discussion of William Shakespeare and looking at his comedies and romances. As well as something called problem plays. Some of his plays, they had problems. We'll also put on pants, escape to forest, and talk about Shakepear

  • Ancient & Medieval Medicine: Crash Course History of Science #9

    Ancient & Medieval Medicine: Crash Course History of Science #9

    527 views / 0 likes - added

    The history of medicine is about two of our big questions: one, what is life? What makes it so special, so fragile, so goopy!? Two, how do we know what we know? Why should I take my doctors advice? Why are deep-fried Oreos bad for me?It may be tempting to

  • 11:27 Popular The Normal Distribution: Crash Course Statistics #19

    The Normal Distribution: Crash Course Statistics #19

    1,139 views / 0 likes - added

    Today is the day we finally talk about the normal distribution! The normal distribution is incredibly important in statistics because distributions of means are normally distributed even if populations aren't. We'll get into why this is so - due to the Ce

  • The History of Electrical Engineering: Crash Course Engineering #4

    The History of Electrical Engineering: Crash Course Engineering #4

    374 views / 1 likes - added

    Next stop on our tour of engineerings major fields: electrical engineering. In this episode well explore the history of telecommunications, electric power and lighting, and computers. Well introduce topics like magnetism, electrical conduction, telegraphy

  • 12:59 English Theater After Shakespeare: Crash Course Theater #17

    English Theater After Shakespeare: Crash Course Theater #17

    346 views / 0 likes - added

    You can learn more about CuriosityStream at https://curiositystream.com/crashcourseThis week on Crash Course Theater, Shakespeare is dead. Long live Shakespeare. Well, long live English theater, anyway. Actually, it's about to get banned. Anyway, we're di

  • Alchemy: History of Science #10

    Alchemy: History of Science #10

    292 views / 1 likes - added

    In fantasy stories, charlatans in fancy robes promise to turn lead into gold. But real alchemists werent just mystical misers. They were skilled experimentalists, backed by theories of matter. And they played a huge role in the development of knowledge ab

  • 09:00 The History of Chemical Engineering: Crash Course Engineering #5

    The History of Chemical Engineering: Crash Course Engineering #5

    322 views / 0 likes - added

    Today well cover the fourth and final of our core disciplines of engineering: chemical engineering. Well talk about its history and evolution going from soda ash competitions to oil refineries and renewable energies. Well also discuss some newer and emerg

  • 12:35 The New Astronomy: Crash Course History of Science #13

    The New Astronomy: Crash Course History of Science #13

    323 views / 0 likes - added

    This week on Crash Course: History of the Scientific Revolutionastronomical anomalies accrued. Meanwhile, in Denmarkan eccentric rich dude constructed not one but two science castles! And his humble German assistant synthesized a lot of new, old, and bold

  • 11:05 Reversibility & Irreversibility: Crash Course Engineering #8

    Reversibility & Irreversibility: Crash Course Engineering #8

    292 views / 0 likes - added

    How do we design the most efficient machines and processes? Today well try to figure that out as we discuss heat & work, reversibility & irreversibility, and how to use efficiency to measure a system. Crash Course Engineering is produced in association wi

  • 10:06 The Law of Conservation: Crash Course Engineering #7

    The Law of Conservation: Crash Course Engineering #7

    288 views / 0 likes - added

    Today Shini explains the law of conservation, beginning with simple, steady-state systems. Well discuss conversion and yield, accumulation, and how generation and consumption can affect how much accumulation there is in a system.This episode is sponsored

  • The Scientific Revolution: Crash Course History of Science #12

    The Scientific Revolution: Crash Course History of Science #12

    316 views / 0 likes - added

  • 13:04 Popular The Scientific Methods: Crash Course History of Science #14

    The Scientific Methods: Crash Course History of Science #14

    722 views / 0 likes - added

    Historically speaking, there is no one scientific method. Theres more than one way to make knowledge. In this episode we're going to look at a few of those ways and how they became more of the "norm."***Crash Course is on Patreon! You can support us direc

  • 12:55 Why We Can't Invent a Perfect Engine: Crash Course Engineering #10

    Why We Can't Invent a Perfect Engine: Crash Course Engineering #10

    664 views / 0 likes - added

    Weve introduced the 0th and 1st laws of thermodynamics, so now its time to move on to the second law and how we came to understand it. Well explain the differences between the first and second law, and well talk about the Carnot cycle and why we can never

  • 12:16 The New Anatomy: Crash Course History of Science #15

    The New Anatomy: Crash Course History of Science #15

    341 views / 0 likes - added

    Theres a question to consider thats pretty daunting: what is life? And to try to answer that question, three tools stand out as being especially useful: A book, some experiments, and the microscope! In this episode, Hank talks to us about all kinds of gro

  • 12:05 You Know I'm All About that Bayes: Crash Course Statistics #24

    You Know I'm All About that Bayes: Crash Course Statistics #24

    343 views / 0 likes - added

    Today were going to talk about Bayes Theorem and Bayesian hypothesis testing. Bayesian methods like these are different from how we've been approaching statistics so far, because they allow us to update our beliefs as we gather new information - which is

  • 10:44 Popular Heat Engines, Refrigerators, & Cycles: Crash Course Engineering #11

    Heat Engines, Refrigerators, & Cycles: Crash Course Engineering #11

    880 views / 0 likes - added

    Cycles are a big deal in engineering. Today well explain what they are and how theyre used in heat engines, refrigerators, and heat pumps. Well also discuss phase diagrams and the power of using renewable energy resourcesCrash Course Engineering is produc

  • 11:14 Bayes in Science and Everyday Life: Crash Course Statistics #25

    Bayes in Science and Everyday Life: Crash Course Statistics #25

    352 views / 0 likes - added

    Today we're going to finish up our discussion of Bayesian inference by showing you how we can it be used for continuous data sets and be applied both in science and everyday life. From A/B testing of websites and getting a better understanding of psycholo

  • 13:15 The New Chemistry: Crash Course History of Science #18

    The New Chemistry: Crash Course History of Science #18

    322 views / 0 likes - added

    One of the problems with the whole idea of a single Scientific Revolution is that some disciplines decided not to join any revolution. And others just took a long time to get there. ***Crash Course is on Patreon! You can support us directly by signing up

  • 08:36 Heat Transfer: Crash Course Engineering #14

    Heat Transfer: Crash Course Engineering #14

    361 views / 0 likes - added

    Today were talking about heat transfer and the different mechanisms behind it. Well explore conduction, the thermal conductivity of materials, convection, boundary layers, and radiation. Crash Course Engineering is produced in association with PBS Digital

  • 13:30 Degrees of Freedom and Effect Sizes: Crash Course Statistics #28

    Degrees of Freedom and Effect Sizes: Crash Course Statistics #28

    371 views / 1 likes - added

    Today we're going to talk about degrees of freedom - which are the number of independent pieces of information that make up our models. More degrees of freedom typically mean more concrete results. But something that is statistically significant isn't alw

  • 12:51 Biology Before Darwin: Crash Course History of Science #19

    Biology Before Darwin: Crash Course History of Science #19

    380 views / 0 likes - added

    Youve probably heard of Charles Darwin, but before we get to him, you really need to understand how different people, throughout the seventeenth and eighteenth centuries, tried to answer the same question: what is life? ***Crash Course is on Patreon! You

  • 10:39 How Not to Set Your Pizza on Fire: Crash Course Engineering #15

    How Not to Set Your Pizza on Fire: Crash Course Engineering #15

    300 views / 0 likes - added

    Today were going to explain how exchangers...exchange heat. Well look at concentric tubes, finned tubes, plate heat exchangers, and shell-and-tube heat exchangers. And well look at some equations to help us sort through heat transfer and decide what heat

  • 11:04 Chi-Square Tests: Crash Course Statistics #29

    Chi-Square Tests: Crash Course Statistics #29

    348 views / 0 likes - added

    Today we're going to talk about Chi-Square Tests - which allow us to measure differences in strictly categorical data like hair color, dog breed, or academic degree. We'll cover the three main Chi-Square tests: goodness of fit test, test of independence,

  • 13:44 Earth Science: Crash Course History of Science #20

    Earth Science: Crash Course History of Science #20

    457 views / 0 likes - added

    It's Earth Science time!!!! In this field, natural philosophers were asking questions like, whats up with fossils? Are they the remains of extinct organisms? Or are they so-called sports of naturerocks that just happen to look like living things but dont

  • 11:16 Mass Separation: Crash Course Engineering #17

    Mass Separation: Crash Course Engineering #17

    408 views / 0 likes - added

    It can be really important to separate out chemicals for all kinds of reasons. Today were going over three different processes engineers use to achieve that separation: distillation, which separates substances based on their different boiling points; liqu

  • 13:50 Newton and Leibniz: Crash Course History of Science #17

    Newton and Leibniz: Crash Course History of Science #17

    367 views / 1 likes - added

    The standard story of the Scientific Revolution culminates with the long life of one man: Sir Isaac Newtona humble servant of the Royal Mint, two-time parliamentarian, and a scientific titan whose name, along with Einsteins, is synonymous with physics tod

  • 09:10 Popular Stress, Strain & Quicksand: Crash Course Engineering #12

    Stress, Strain & Quicksand: Crash Course Engineering #12

    765 views / 0 likes - added

    Today were talking all about fluid mechanics! Well look at different scales that we work with as engineers, mass and energy transfers, the no-slip condition, stress and strain, Newtons law of viscosity, Reynolds number, and more!Crash Course Engineering i

  • 12:29 The Industrial Revolution: Crash Course History of Science #21

    The Industrial Revolution: Crash Course History of Science #21

    393 views / 0 likes - added

    You probably know some of the signs of industrialization in the nineteenth century: Trains connected cities, symbolizing progress. But they also brought about the destruction of rural lands, divisions between social classes, and rapid urbanization. But th

  • 12:33 Electricity: Crash Course History of Science #27

    Electricity: Crash Course History of Science #27

    443 views / 0 likes - added

    The study of electricity goes all the way back to antiquity. But, by the time electricity started to become more well known, a few familiar names started to appear. Edison, Galvani, and a few others really changed the way the world worked. ***Crash Course

  • 11:51 Supervised Machine Learning: Crash Course Statistics #36

    Supervised Machine Learning: Crash Course Statistics #36

    368 views / 0 likes - added

    We've talked a lot about modeling data and making inferences about it, but today we're going to look towards the future at how machine learning is being used to build models to predict future outcomes. We'll discuss three popular types of supervised machi

  • 08:51 The Mighty Power of Nanomaterials: Crash Course Engineering #23

    The Mighty Power of Nanomaterials: Crash Course Engineering #23

    368 views / 0 likes - added

    Just how small are nanomaterials? And what can we do with stuff that small? Today well discuss some special properties of nanomaterials, how some can change at different sizes, and the difference between engineered nanomaterials and ones that occur natura

  • 10:39 Silicon, Semiconductors, & Solar Cells: Crash Course Engineering #22

    Silicon, Semiconductors, & Solar Cells: Crash Course Engineering #22

    280 views / 0 likes - added

    Today were looking at silicon, and how introducing small amounts of other elements allow silicon layers to conduct currents, turning them into semiconductors. Well explore how putting two different types N and P semiconductors together gives us electrical

  • 12:02 Popular Genetics - Lost and Found: Crash Course History of Science #25

    Genetics - Lost and Found: Crash Course History of Science #25

    780 views / 0 likes - added

    Sometimes trail blazers of science aren't famous like Darwin or Pasteur. Sometimes they're humble Abbots, just growing peas in the back of their Abbey. This is the story of Gregor Mendel and how his work was done, lost, then found again. ***Crash Course i

  • 13:10 Popular Darwin and Natural Selection: Crash Course History of Science #22

    Darwin and Natural Selection: Crash Course History of Science #22

    754 views / 0 likes - added

    "Survival of the Fittest" sounds like a great WWE show but today we're talking about that phrase as it relates to Charles Darwin and Alfred Wallace. Darwin and Wallace are at the heart of understanding evolution and natural selection. Today, Hank talks ab

  • Popular Metals & Ceramics: Crash Course Engineering #19

    Metals & Ceramics: Crash Course Engineering #19

    1,143 views / 0 likes - added

    Today well explore more about two of the three main types of materials that we use as engineers: metals and ceramics. Well discuss properties of metals, alloys, ceramics, clay, cement, and glass-ceramic materials. Well also look at the applications of our

  • 12:29 Thermodynamics: Crash Course History of Science #26

    Thermodynamics: Crash Course History of Science #26

    480 views / 0 likes - added

    It's time to heat things up! LITERALLY! It's time for Hank to talk about the history of Thermodynamics!!! It's messy and there are a lot of people who came up with some ideas that worked and other that didn't and then some ideas that should have come firs

  • 11:10 Biomaterials: Crash Course Engineering #24

    Biomaterials: Crash Course Engineering #24

    356 views / 0 likes - added

    Weve talked about different materials engineers use to build things in the world, but theres a special category of materials they turn to when building things to go inside our bodies. In this episode well explore the world biomaterials like titanium and t

  • 10:56 Unsupervised Machine Learning: Crash Course Statistics #37

    Unsupervised Machine Learning: Crash Course Statistics #37

    315 views / 0 likes - added

    Today we're going to discuss how machine learning can be used to group and label information even if those labels don't exist. We'll explore two types of clustering used in Unsupervised Machine Learning: k-means and Hierarchical clustering, and show how t

  • 11:48 Marie Curie and Spooky Rays: Crash Course History of Science #31

    Marie Curie and Spooky Rays: Crash Course History of Science #31

    616 views / 3 likes - added

    It's time to talk about one of the most awesome scientists that has ever been awesome: Marie Curie. She figured out ways to get an amazing education despite the limitations of her homeland, discovered some really important answers to the question "what is

  • 12:16 Popular Neural Networks: Crash Course Statistics #41

    Neural Networks: Crash Course Statistics #41

    921 views / 0 likes - added

    Today we're going to talk big picture about what Neural Networks are and how they work. Neural Networks, which are computer models that act like neurons in the human brain, are really popular right now - they're being used in everything from self-driving

  • 12:47 The Mind/Brain: Crash Course History of Science #30

    The Mind/Brain: Crash Course History of Science #30

    280 views / 0 likes - added

    Scientists in the nineteenth century discovered a lot about life and matter. But exactly what kind of stuff is the human brain? That one wasand istricky.The brain scienceswith experiments and therapies tied to biological theories of the bodyemerged in the

  • 10:10 Skyscrapers, Statics, & Dynamics: Crash Course Engineering #26

    Skyscrapers, Statics, & Dynamics: Crash Course Engineering #26

    265 views / 0 likes - added

    What if you were on a high floor of a skyscraper and the building started swaying? Today well explore statics and dynamics, and what they mean for the structures we design. We look at the idea of static equilibrium, forces, and torques, and how free body

  • 12:51 Big Data Problems: Crash Course Statistics #39

    Big Data Problems: Crash Course Statistics #39

    404 views / 0 likes - added

    There is a lot of excitement around the field of Big Data, but today we want to take a moment to look at some of the problems it creates. From questions of bias and transparency to privacy and security concerns, there is still a lot to be done to manage t

  • 11:23 Intro to Big Data: Crash Course Statistics #38

    Intro to Big Data: Crash Course Statistics #38

    388 views / 0 likes - added

    Today, we're going to begin our discussion of Big Data. Everything from which videos we click (and how long we watch them) on YouTube to our likes on Facebook say a lot about us - and increasingly more and more sophisticated algorithms are being designed

  • 11:02 Cheese, Catastrophes, & Process Control: Crash Course Engineering #25

    Cheese, Catastrophes, & Process Control: Crash Course Engineering #25

    345 views / 0 likes - added

    Engineering, like life, could really use a lot more cheese. This week we are looking at a cheese factory in Toronto and what it can teach us about process control systems. Well explore feedforward and feedback systems, and see how integrating them both wi

  • 11:58 Ford, Cars, and a New Revolution: Crash Course History of Science #28

    Ford, Cars, and a New Revolution: Crash Course History of Science #28

    434 views / 0 likes - added

    Historians love to debate each other. So some of them pointed out that the first half of this revolution looks a lot different from the second. Let's chat about industry, cars, and Henry Ford.***Crash Course is on Patreon! You can support us directly by s

  • 11:54 The Computer and Turing: Crash Course History of Science #36

    The Computer and Turing: Crash Course History of Science #36

    468 views / 0 likes - added

    Computers and computing have changed a lot over the History of Science but ESPECIALLY over the last 100 years. In this episode of Crash Course History of Science, we have a look at that history around World War Two and how that conflict forced changes in

  • 11:35 Popular Computer Engineering & the End of Moore's Law: Crash Course Engineering #35

    Computer Engineering & the End of Moore's Law: Crash Course Engineering #35

    1,176 views / 0 likes - added

    This week were exploring a field of engineering that is essential to how youre watching this video: computers and computer engineering. Well explain differences between hardware and software, how engineers are working on making computers smaller and more

  • 14:16 Using Wikipedia: Crash Course Navigating Digital Information #5

    Using Wikipedia: Crash Course Navigating Digital Information #5

    279 views / 0 likes - added

    Let's talk about Wikipedia. Wikipedia is often maligned by teachers and twitter trolls alike as an unreliable source. And yes, it does sometimes have major errors and omissions, but Wikipedia is also the Internet's largest general reference work and as su

  • 12:34 Genetics and The Modern Synthesis: Crash Course History of Science #35

    Genetics and The Modern Synthesis: Crash Course History of Science #35

    297 views / 0 likes - added

    Remember how Darwin and Mendel lived around the same time, but everyone forgot about Mendel until 1900, and even then biologists saw Darwinism and Mendelism as two competing grand theories about how life works?Well, in this episode of Crash Course History

  • 10:01 To The Moon & Mars - Aerospace Engineering: Crash Course Engineering #34

    To The Moon & Mars - Aerospace Engineering: Crash Course Engineering #34

    329 views / 0 likes - added

    This week were exploring aerospace engineering and its two main fields: aeronautical engineering and astronautical engineering. Well explore life & buoyancy, propulsion systems, and the challenges of managing the human body in space.Crash Course Engineeri

  • 11:02 How Engineering Robots Works: Crash Course Engineering #33

    How Engineering Robots Works: Crash Course Engineering #33

    477 views / 0 likes - added

    In this episode we looked at robots and the engineering principles of robots. We learned how robots use sensors to interpret their environment, how actuators and effectors allow a robot to manipulate the objects around it to accomplish a task, and how com

  • 10:27 Why It's So Hard To Make Better Batteries: Crash Course Engineering #32

    Why It's So Hard To Make Better Batteries: Crash Course Engineering #32

    332 views / 0 likes - added

    There are batteries powering so many parts of our everyday lives, so today were going to talk about how they work and how we can make them better. Well explain how they provide power by discharging ions between a cathode and an anode, and how reversing th

  • 12:05 The Atomic Bomb: Crash Course History of Science #33

    The Atomic Bomb: Crash Course History of Science #33

    529 views / 0 likes - added

    The story picks up where we left off last time, with Einstein writing the president of his new homeland, the United States, urging him to build a nuclear weapon before Hitler. This is the tale of the most destructive force humans have ever unleashed. The

  • 12:07 Einstein's Revolution: Crash Course History of Science #32

    Einstein's Revolution: Crash Course History of Science #32

    322 views / 0 likes - added

    There was physics before Einstein in the same way that there was biology before Darwin. Einstein didnt just add some new ideas to physics. And he didnt just add a unifying framework for doing physics, like Newton. Einstein took what people thought was phy

  • 10:12 How to Engineer Health - Drug Discovery & Delivery: Crash Course Engineering #36

    How to Engineer Health - Drug Discovery & Delivery: Crash Course Engineering #36

    333 views / 0 likes - added

    Engineers are problem solvers, and our own health is full of problems to be engineered. In this episode we discuss drug discovery and drug delivery. Well explore everything from classical and reverse pharmacology to the new field of synthetic biology. Wel

  • 09:51 Smart Tattoos & Tiny Robots: Crash Course Engineering #37

    Smart Tattoos & Tiny Robots: Crash Course Engineering #37

    313 views / 0 likes - added

    This week we are exploring biodevices and the part they play in the healthcare world. Well look at the challenges of implantable biodevices, like biocompatibility, power and connectivity, packaging, structural design, delivery systems, and device manageme

  • 12:23 Ecology: Crash Course History of Science #38

    Ecology: Crash Course History of Science #38

    335 views / 0 likes - added

    Weve explored the origins of modern biology, the earth sciences, and even the sciences of outer space. Now its time to put these disciplines together. It's Ecology time!!!***Crash Course is on Patreon! You can support us directly by signing up at http://w

  • 13:25 The Century of the Gene: Crash Course History of Science #42

    The Century of the Gene: Crash Course History of Science #42

    323 views / 0 likes - added

    With the question What is life? addressed at the molecular level, humanity could finally cure all disease and live forever Except, not really. It turns out we're complicated.***Crash Course is on Patreon! You can support us directly by signing up at http:

  • 12:28 The Internet and Computing: Crash Course History of Science #43

    The Internet and Computing: Crash Course History of Science #43

    300 views / 0 likes - added

    Weve talked a lot about advances in biotech. But none of those could have happened without advances in computing. Its time to get back to data and explore the unlikely birth, strange life, and potential futures of the Internet. In this episode of Crash Co

  • 09:30 Popular YouTube Couldn't Exist Without Communications & Signal Processing: Crash Course Engineering #42

    YouTube Couldn't Exist Without Communications & Signal Processing: Crash Course Engineering #42

    1,039 views / 0 likes - added

    Engineering helped make this video possible. This week well look at how its possible for you to watch this video with the fundamentals of signal processing. Well explore things from Morse Code, to problems like bandwidth capacity and noise, to how we arri

  • 10:16 Why Moving People is Complicated: Crash Course Engineering #41

    Why Moving People is Complicated: Crash Course Engineering #41

    290 views / 0 likes - added

    Transportation is a big part of our world and engineers play a big role in making it happen. Today well explore how transportation systems are designed and some things transportation engineers have to take into consideration, like signaling, user behavior

  • 12:57 Bodies and Dollars: Crash Course History of Science #41

    Bodies and Dollars: Crash Course History of Science #41

    345 views / 0 likes - added

    After World War Two, the applications of basic discoveries in biology took offand became big business. Today, well look at the rise of Big Pharma and GMO foods. Well also discuss how life-science technologies fundamentally changed reproduction: its time t

  • 12:13 Biotechnology: Crash Course History of Science #40

    Biotechnology: Crash Course History of Science #40

    380 views / 0 likes - added

    The history of discovering what DNA is, what it looks like, and how it works is... complicated. But, in this episode of History of Science, Hank Green does his best to lay out the basics so we can understand the beginnings of Biotechnology.***Crash Course

  • 09:54 How the Leaning Tower of Pisa Was Saved: Crash Course Engineering #40

    How the Leaning Tower of Pisa Was Saved: Crash Course Engineering #40

    378 views / 0 likes - added

    This week were going underground to explore geotechnical and seismic engineering. Well look at how structures connect to the ground and transmit loads through their foundations, and how those foundations need to provide a high bearing capacity. Well see h

  • 09:21 Mass-Producing Ice Cream with Food Engineering: Crash Course Engineering #39

    Mass-Producing Ice Cream with Food Engineering: Crash Course Engineering #39

    319 views / 0 likes - added

    In this episode, we looked at food engineering. We explored how foods capacity to spoil makes it a unique challenge from an engineering viewpoint. We saw how many branches of engineering come into play to process ingredients, ensure safety for consumers,

  • 11:47 Changing the Blueprints of Life - Genetic Engineering: Crash Course Engineering #38

    Changing the Blueprints of Life - Genetic Engineering: Crash Course Engineering #38

    328 views / 0 likes - added

    Can we change the blueprints of life? This week we are exploring that question with genetic engineering. Well discuss how selective breeding can improve agricultural practices, and the potential DNA-level engineering could have on other fields of engineer

  • 14:02 The Northern Renaissance: Crash Course European History #3

    The Northern Renaissance: Crash Course European History #3

    397 views / 0 likes - added

    The European Renaissance may have started in Florence, but it pretty quickly moved out of Italy and spread the art, architecture, literature, and humanism across Europe to places like France, Spain, England, and the Low Countries.SOURCES:Hunt, Lynn et al.

  • 15:40 The Age of Exploration: Crash Course European History #4

    The Age of Exploration: Crash Course European History #4

    515 views / 0 likes - added

    The thing about European History is that it tends to leak out of Europe. Europeans haven't been great at staying put in Europe. As human beings do, the people of Europe were very busy traveling around to trade, to spread religion, and in a lot of cases to

  • 16:34 Expansion and Consequences: Crash Course European History #5

    Expansion and Consequences: Crash Course European History #5

    393 views / 0 likes - added

    European exploration had a lot of side effects. When the Old World and the New World began to interact, people, wealth, food, animals, and disease began to flow in both directions. In the New World, countless millions were killed by smallpox, measles, and

  • 15:44 The Protestant Reformation: Crash Course European History #6

    The Protestant Reformation: Crash Course European History #6

    368 views / 0 likes - added

    You may have noticed that the internet is terrible at religious discourse. Well, this is not a new phenomenon. In the early 16th century, the Roman Catholic church dominated Christianity in Europe, and the institution was starting to show some cracks. Ten

  • 13:38 Reformation and Consequences: Crash Course European History #7

    Reformation and Consequences: Crash Course European History #7

    469 views / 0 likes - added

    The Protestant Reformation didn't exactly begin with Martin Luther, and it didn't end with him either. Reformers and monarchs changed the ways that religious and state power were organized throughout the 16th and early 17th centuries. Jean Calvin in Franc

  • 09:11 How To Become An Engineer: Crash Course Engineering #45

    How To Become An Engineer: Crash Course Engineering #45

    343 views / 0 likes - added

    Hopefully this course has gotten you excited about all the things we can do with engineering. If so, today were going to try to help you answer a very important question: how do you become an engineer? What are the steps? What kinds of careers can you pur

  • 11:34 Climate Science: Crash Course History of Science #45

    Climate Science: Crash Course History of Science #45

    303 views / 0 likes - added

    Scientists tend to be careful and resistant to big claims. So evidence for the possible end of the living world took a while to be seen as such. In this episode of Crash Course History of Science, Hank talks to us about where Climate Science started and h

  • 14:34 Florence and the Renaissance: Crash Course European History #2

    Florence and the Renaissance: Crash Course European History #2

    558 views / 0 likes - added

    The Renaissance was a cultural revitalization that spread across Europe, and had repercussions across the globe, but one smallish city-state in Italy was in many ways the epicenter of the thing. Florence, or as Italians might say, Firenze, was the home to

  • 09:42 Building a Desalination Plant from Scratch: Crash Course Engineering #44

    Building a Desalination Plant from Scratch: Crash Course Engineering #44

    305 views / 0 likes - added

    An essential part of engineering is engineering design. Today well see how design synthesis helps you put together the components of a process and decide what techniques are needed to solve your problem. Well explain the need test things on a smaller scal

  • 12:51 Life and Longevity: Crash Course History of Science #44

    Life and Longevity: Crash Course History of Science #44

    300 views / 0 likes - added

    It's time to have a look at the future of human life and how technology could possibly extend longevity. But, within that tech, are questions of ethics that are not always at the top of mind when the tech is being developed. In this episode, Hank sits dow

  • 14:09 Popular Medieval Europe: Crash Course European History #1

    Medieval Europe: Crash Course European History #1

    734 views / 1 likes - added

    Our European history is going to start around 1500 with the Renaissance, but believe it or not, that is not the actual beginning of history in the continent. So, today, we're going to teach you the broad outlines of the so-called Middle Ages, and look at

  • 09:57 Popular How Seawater Sabotages Ships: Crash Course Engineering #43

    How Seawater Sabotages Ships: Crash Course Engineering #43

    1,126 views / 0 likes - added

    This week were headed out to sea for some marine engineering. How do we design ships to handle aquatic environments? How do we deal with marine life and corrosion and all of the other problems that come with engineering in the ocean? How can large maritim

  • 15:34 Commerce, Agriculture, and Slavery: Crash Course European History #8

    Commerce, Agriculture, and Slavery: Crash Course European History #8

    396 views / 0 likes - added

    We've been talking a lot about kings, and queens, and wars, and religious upheaval for most of this series, but let's take a moment to zoom out, and look at the ways that individuals' lives were changing in the time span we've covered so far. Some people'

  • 13:44 Catholic Counter-Reformation: Crash Course European History #9

    Catholic Counter-Reformation: Crash Course European History #9

    437 views / 0 likes - added

    When the Protestant Reformation broke out in Western Europe, the Catholic Church got the message, at least a little bit. Pope Paul III called a council to look into reforming some aspects of the Catholic Church and try to stem the tide of competing Christ

  • 15:33 Witchcraft: Crash Course European History #10

    Witchcraft: Crash Course European History #10

    411 views / 2 likes - added

    During our last several episodes, Europe and the European-controlled world have been in crisis. Wars, disease, climate changes, and shifts in religious and political power threw the European world into turmoil. People were looking for a scapegoat, and for

  • 16:23 Popular The Enlightenment: Crash Course European History #18

    The Enlightenment: Crash Course European History #18

    817 views / 2 likes - added

    So far in this series, we've covered a lot of war, disease, climate disaster, and some more war. Well, prepare yourself for something a little more positive. This week, we're talking about the Enlightenment. In this video, you'll learn about the ideas of

  • 17:17 How to make an AI read your handwriting (LAB) : Crash Course Ai #5

    How to make an AI read your handwriting (LAB) : Crash Course Ai #5

    314 views / 0 likes - added

    Follow along: https://colab.research.google.com/drive/1NyYH1EPpaJlMBLK0fcKYz4icaD1SNSLKJohn Green Bot wrote his first novel! Today, in our first ever Lab were going to program a neural network to recognize handwritten letters to convert the first part of

  • 12:29 Training Neural Networks: Crash Course AI #4

    Training Neural Networks: Crash Course AI #4

    301 views / 0 likes - added

    Today were going to talk about how neurons in a neural network learn by getting their math adjusted, called backpropagation, and how we can optimize networks by finding the best combinations of weights to minimize error. Then well send John Green Bot into

  • 12:23 Neural Networks and Deep Learning: Crash Course AI #3

    Neural Networks and Deep Learning: Crash Course AI #3

    298 views / 1 likes - added

    You can learn more about CuriosityStream at https://curiositystream.com/crashcourse. Today, we're going to combine the artificial neuron we created last week into an artificial neural network. Artificial neural networks are better than other methods for m

  • 15:18 Eastern Europe Consolidates: Crash Course European History #16

    Eastern Europe Consolidates: Crash Course European History #16

    405 views / 0 likes - added

    While the focus has been on Western Europe so far, there has also been a lot going on in Eastern Europe, which we'll be looking at today. The Commonwealth of Poland-Lithuania, The Ottoman Empire, and Russia were all competing at the eastern end of the con

  • 15:23 Supervised Learning: Crash Course AI #2

    Supervised Learning: Crash Course AI #2

    303 views / 0 likes - added

    Today were going to teach John Green Bot how to tell the difference between donuts and bagels using supervised learning! Supervised learning is the process of learning WITH training labels, and is the most widely used kind of learning with it comes to AI

  • 13:44 Dutch Golden Age: Crash Course European History #15

    Dutch Golden Age: Crash Course European History #15

    454 views / 0 likes - added

    While the English were falling apart a little, with their civil war and their restoration and their succession problems, the Dutch were getting their act together. They were throwing off the yoke of the Spanish Empire, uniting their provinces, and buildin

  • 13:30 The 17th Century Crisis: Crash Course European History #11

    The 17th Century Crisis: Crash Course European History #11

    384 views / 0 likes - added

    The 17th Century in Europe was pretty rough in a lot of ways. The Thirty Years War involved a lot of countries, and a lot of battles, and it was terrible for everyone involved, as wars have aa historical tendency to be. At the same time, disease and hunge

  • 15:08 Popular Scientific Revolution: Crash Course European History #12

    Scientific Revolution: Crash Course European History #12

    1,048 views / 0 likes - added

    There was a lot of bad stuff going on in Europe in the 17th century. We've seen wars, plagues, and unrest of all types. But, there is some good news. Huge advances were underway in the scientific community in Europe at this time. In this video we'll look

  • 13:16 Popular Absolute Monarchy: Crash Course European History #13

    Absolute Monarchy: Crash Course European History #13

    711 views / 0 likes - added

    So far, the rulers of Europe have been working to consolidate their power and expand their kingdoms, and this is it. The moment they've been working toward: Absolute Monarchy. We're going to learn about how kings and queens became absolute rulers in Europ

  • 14:36 English Civil War: Crash Course European History #14

    English Civil War: Crash Course European History #14

    434 views / 0 likes - added

    The English Civil War. We'll talk about England after Elizabeth, in which things didn't go that smoothly. We'll talk about James I, Charles I, Oliver Cromwell, Charles II, and James II, all of whom ruled England, (and tried to rule all of Britain and Irel

  • 11:46 What Is Artificial Intelligence? Crash Course AI #1

    What Is Artificial Intelligence? Crash Course AI #1

    273 views / 0 likes - added

    Artificial intelligence is everywhere and it's already making a huge impact on our lives. It's autocompleting texts on our cellphones, telling us which videos to watch on YouTube, beating us at video games, recognizing us in photos, ordering products in s

  • 13:41 Enlightened Monarchs: Crash Course European History #19

    Enlightened Monarchs: Crash Course European History #19

    638 views / 0 likes - added

    Last time we learned about the Enlightenment, and the philosophers and thinkers whose ideas would shape governance for hundred of years. This week, we're learning how monarchs across Europe were influenced by those ideas. Adoption of Enlightenment ideas a

  • 14:33 Modern Life: Crash Course European History #30

    Modern Life: Crash Course European History #30

    336 views / 0 likes - added

    So, "modern" is kind of a loaded term, but today we're going to talk about modern life in Europe, as it looked around the time the 19th century turned into the 20th. We'll look at what life was like in the rapidly growing urban centers of Europe, how deve

  • 11:20 Algorithmic Bias and Fairness: Crash Course AI #18

    Algorithmic Bias and Fairness: Crash Course AI #18

    272 views / 1 likes - added

    Check out my collab with "Above the Noise" about Deepfakes: https://www.youtube.com/watch?v=Ro8b69VeL9UToday, we're going to talk about five common types of algorithmic bias we should pay attention to: data that reflects existing biases, unbalanced classe

  • 13:58 Migration: Crash Course European History #29

    Migration: Crash Course European History #29

    386 views / 0 likes - added

    Between 1840 and 1914, an estimated 40 million people left Europe. This is one of the most significant migrations in human history. So, who was leaving Europe? And why? Crash Course is on Patreon! You can support us directly by signing up at http://www.pa

  • 11:15 Web Search: Crash Course AI #17

    Web Search: Crash Course AI #17

    315 views / 0 likes - added

    Today were going to talk about search engines, which are just AI systems that try to help us find what were looking for. Search engines can be the sort that serve up a list of results, like during a Google or Bing search, using web crawlers, an inverted i

  • 13:14 Expansion and Resistance: Crash Course European History #28

    Expansion and Resistance: Crash Course European History #28

    507 views / 0 likes - added

    In 19th century Europe, with nation building well under way, thoughts turned outward, toward empire. This week, we're looking at how Europeans expanded into Africa, Asia, and Oceania during the 1800s. You'll learn about China and the Opium War, British In

  • 14:41 Lets make a movie recommendation system: Crash Course AI #16

    Lets make a movie recommendation system: Crash Course AI #16

    305 views / 0 likes - added

    Follow along: https://colab.research.google.com/drive/1-v9cw18wTDjaCUlECKHsQnHeisLKyG8U We need to save Jabril and John Green Bots movie nights. Jabril generally likes action movies and John Green Bot likes romantic movies, but they need to find something

  • 14:22 Italian and German Unification: Crash Course European History #27

    Italian and German Unification: Crash Course European History #27

    565 views / 0 likes - added

    So, we haven't talked much about Italy and Germany so far in Crash Course Euro, and that's because prior to the mid-19th century, those two nation-states weren't really a thing. Today we'll look at how Italy and Germany pulled it together in the second ha

  • 10:52 How YouTube knows what you should watch: Crash Course AI #15

    How YouTube knows what you should watch: Crash Course AI #15

    437 views / 0 likes - added

    Subscribe to Sound Field! https://www.youtube.com/channel/UCvMLMyKPomE6kTTL9Kv8Iww Today were going to talk about recommender systems which form the backbone of so much of the content we see online from video recommendations on YouTube and Netflix to ads

  • 10:13 Humans and AI working together: Crash Course AI #14

    Humans and AI working together: Crash Course AI #14

    317 views / 0 likes - added

    Theres been a lot of discussion about how automation is going to take peoples jobs and we dont want to downplay that real impact, but today were going to focus on the benefits of humans and AI working together. Human-AI teams allow us to fill in each othe

  • 13:05 Cats Vs Dogs? Let's make an AI to settle this: Crash Course Ai #19

    Cats Vs Dogs? Let's make an AI to settle this: Crash Course Ai #19

    321 views / 0 likes - added

    Follow along: https://colab.research.google.com/drive/1N5IdMTmiNbwEOD8dqammN8GAfpk41arwToday, in our final lab, Jabril tries to make an AI to settle the question once and for all, "Will a cat or a dog make us happier?" But in building this AI, Jabril will

  • 11:00 The Future of Artificial Intelligence: Crash Course AI #20

    The Future of Artificial Intelligence: Crash Course AI #20

    517 views / 0 likes - added

    Today, in our final episode of Crash Course AI, we're going to look towards the future. We've spent much of this series explaining how and why we don't have the Artificial General Intelligence (or AGI) that we see in the movies like Bladerunner, Her, or E

  • 15:09 Modern Thought and Culture in 1900: Crash Course European History #31

    Modern Thought and Culture in 1900: Crash Course European History #31

    347 views / 0 likes - added

    Europe was in transition politically and culturally at the beginning of the 20th century. Today, we're looking at the dawn of modern science, and the rise of Modernism in the arts, especially in music, dance, and visual arts. We'll look at changes in musi

  • 13:39 The Holocaust,Genocides, and Mass Murder of WWII: Crash Course European History #40

    The Holocaust,Genocides, and Mass Murder of WWII: Crash Course European History #40

    526 views / 2 likes - added

    During World War II, Nazi Germany undertook the imprisonment and summary execution of many of its own citizens, and citizens of the nations they occupied. One of the groups that came under assault was the European Jewish population. More than six million

  • 14:25 World War II Civilians and Soldiers: Crash Course European History #39

    World War II Civilians and Soldiers: Crash Course European History #39

    399 views / 0 likes - added

    Our look at World War II continues with a closer examination of just how the war impacted soldiers in the field, and the people at home. For many of the combatants, the homefront and the warfront were one and the same. The war disrupted life for millions

  • 16:15 World War II: Crash Course European History #38

    World War II: Crash Course European History #38

    482 views / 2 likes - added

    Only a couple of decades after the end of the First World War--which was supposed to be the War that Ended All Wars--another, bigger, farther-flung, more destructive, and deadlier war began. Today, you'll learn about how the war in Europe progressed, from

  • 16:34 Economic Depression and Dictators: Crash Course European History #37

    Economic Depression and Dictators: Crash Course European History #37

    522 views / 0 likes - added

    We're still leading up to World War II, but first we gotta talk about the rise of the dictators. Today we talk about the rise of militaristic dictatorships in Germany, the Soviet Union, Japan, and Spain, and the economic depression that set the stage for

  • 14:48 Post-World War I Recovery: Crash Course European History #36

    Post-World War I Recovery: Crash Course European History #36

    443 views / 0 likes - added

    In which John Green looks at Europe's attempts to recover from the devastation of World War I and forge a lasting peace. The peace did not last. Today we're talking about the economic cultural recovery of the 1920s, and the economic depression of the 1930

  • 14:16 Russian Revolution and Civil War: Crash Course European History #35

    Russian Revolution and Civil War: Crash Course European History #35

    684 views / 0 likes - added

    World War I was very hard on the Russian Empire. So hard, in fact, that it led to the end of the Russian Empire. As the global conflict ground on, Tsar Nicholas II faced increasing unrest at home. Today we'll learn about the Revolutions of 1917, the rise

  • 14:07 WWI's Civilians, the Homefront, and an Uneasy Peace: Crash Course European History #34

    WWI's Civilians, the Homefront, and an Uneasy Peace: Crash Course European History #34

    398 views / 0 likes - added

    World War I was a total war for millions of people in Europe. Many men were enlisted in the fighting, but the war work had implications for the daily lives of a huge number of Europeans. Women entered the workforce in huge numbers, and for a lot of people

  • 14:16 World War I Battlefields: Crash Course European History #33

    World War I Battlefields: Crash Course European History #33

    513 views / 0 likes - added

    Europe's system of alliances and centuries-old tensions erupted into war in August of 1914. This week on Crash Course Euro, we're talking about the military history of World War I, and taking a look at the broad strokes of how the war unfolded. We'll take

  • 15:01 The Roads to World War I: Crash Course European History #32

    The Roads to World War I: Crash Course European History #32

    367 views / 0 likes - added

    Much has been written about what exactly caused World War I. As befits a true global war, the reality is that there isn't a single cause. There aren't even three causes. There are a vast array of causes. Today we'll get into just a few of those causes, in

  • 11:28 Reinforcement Learning: Crash Course AI#9

    Reinforcement Learning: Crash Course AI#9

    332 views / 1 likes - added

    Reinforcement learning is particularly useful in situations where we want to train AIs to have certain skills we dont fully understand ourselves. Unlike some of the techniques weve discussed so far, reinforcement learning generally only looks at how an AI

  • 15:29 The French Revolution: Crash Course European History #21

    The French Revolution: Crash Course European History #21

    511 views / 0 likes - added

    In 1789, the French Monarchy's habit of supporting democratic popular revolutions in North America backfired. Today, we're talking about the French Revolution. Across the world, people were rising up to throw off monarchies, and Louis didn't see the writi

  • 16:00 Make an AI sound like a YouTuber (LAB): Crash Course AI #8

    Make an AI sound like a YouTuber (LAB): Crash Course AI #8

    299 views / 0 likes - added

    Please take the PBS Digital Studios survey here! https://www.pbsresearch.org/c/r/CC_YTvideoFollow Along: https://colab.research.google.com/drive/1f8ik5kSPEvDCcM7R_-Wb3AjifizVEsHD Lets try to help John Green Bot sound a bit more like the real John Green us

  • 13:29 Natural Language Processing: Crash Course AI #7

    Natural Language Processing: Crash Course AI #7

    465 views / 0 likes - added

    For more information go to https://curiositystream.com/crashcourse So far in this series, we've mostly focused on how AI can interpret images, but one of the most common ways we interact with computers is through language - we type questions into search e

  • 14:59 18th Century Warfare: Crash Course European History #20

    18th Century Warfare: Crash Course European History #20

    406 views / 0 likes - added

    European powers had a lot of wars in the 18th century, and they weren't confined to Europe. Conflict raged across the globe, in what might be called a World War...but we don't call it that, because we already have a couple of those coming up in the 20th c

  • 12:35 Unsupervised Learning: Crash Course AI #6

    Unsupervised Learning: Crash Course AI #6

    306 views / 0 likes - added

    For more information go tohttps://wix.com/go/CRASHCOURSEToday, were moving on from artificial intelligence that needs training labels, called Supervised Learning, to Unsupervised Learning which is learning by finding patterns in the world. Well focus on t

  • 13:22 Symbolic AI: Crash Course AI #10

    Symbolic AI: Crash Course AI #10

    319 views / 0 likes - added

    Today we're going to talk about Symbolic AI - also known as "good old-fashioned AI". Symbolic AI is really different from the modern neural networks we've discussed so far, instead, it represents problems using symbols and then uses logic to search for so

  • 15:54 Popular Napoleon Bonaparte: Crash Course European History #22

    Napoleon Bonaparte: Crash Course European History #22

    1,102 views / 5 likes - added

    We try not to get into too much great man history here at Crash Course, but we have to admit: Napoleon Bonaparte is a pretty big deal. Join us as we track the rise, further rise, fall, rise, fall, mortal fall, and posthumous rise of Napoleon. This guy cha

  • 14:06 Reform and Revolution 1815-1848: Crash Course European History #25

    Reform and Revolution 1815-1848: Crash Course European History #25

    479 views / 0 likes - added

    In the aftermath of the revolutions and upheaval in 18th and early 19th century Europe, there was a hunger for reform across the continent. Reformers like Robert Owen, Charles Fourier, and Auguste Comte proposed radical new ideas, and at the same time, re

  • 13:26 Let's make an AI that destroys video games: Crash Course AI #13

    Let's make an AI that destroys video games: Crash Course AI #13

    284 views / 0 likes - added

    Follow along: https://colab.research.google.com/drive/1uYXTDeBbPeuJfM1teufZ9nUaiRIN9nHW Today we create a game and then build an AI to destroy it. Our game is called TrashBlaster, and its like Asteroids but with trash in the ocean, and instead of a spaces

  • 17:06 The Industrial Revolution: Crash Course European History #24

    The Industrial Revolution: Crash Course European History #24

    564 views / 0 likes - added

    We've talked about a lot of revolutions in 19th Century Europe, and today we're moving on to a less warlike revolution, the Industrial Revolution. You'll learn about the development of steam power and mechanization, and the labor and social movements that

  • 11:31 AI Playing Games: Crash Course AI #12

    AI Playing Games: Crash Course AI #12

    388 views / 1 likes - added

    As we mentioned last episode, one of the best test spaces for building new AI systems are games. This is because games provide a great framework for an AI to learn an objective and slowly improve. In recent years, AI has made huge strides in games from be

  • 14:01 The Congress of Vienna: Crash Course European History #23

    The Congress of Vienna: Crash Course European History #23

    451 views / 0 likes - added

    The end of the Napoleonic Wars left the great powers of Europe shaken. Judging from the destruction that had been wrought across the continent, it seemed to the powers that be that the Enlightenment had liberated the people, and led to disaster. So, every

  • 10:12 Robotics: Crash Course AI #11

    Robotics: Crash Course AI #11

    332 views / 0 likes - added

    Robots arent like humans who can do a lot of different things. Theyre designed for very specific tasks like vacuuming our homes, assembling cars in a factory, or exploring the surface of other planets. So even though it may be a while before we have a gen

  • 11:50 Natural Language Processing: Crash Course Computer Science #36

    Natural Language Processing: Crash Course Computer Science #36

    619 views / 0 likes - added

    Today we’re going to talk about how computers understand speech and speak themselves. As computers play an increasing role in our daily lives there has been an growing demand for voice user interfaces, but speech is also terribly complicated. Vocabularies

  • 12:26 Robots: Crash Course Computer Science #37

    Robots: Crash Course Computer Science #37

    587 views / 1 likes - added

    Today we're going to talk about robots! Robots are often thought as a technology of the future, but they're already here by the millions in the workplace, our homes, and pretty soon on the roads. We'll discuss the origins of robotics to its proliferation,

  • 12:39 Psychology of Computing: Crash Course Computer Science #38

    Psychology of Computing: Crash Course Computer Science #38

    632 views / 0 likes - added

    We’ve spent most of this series talking about computers. Which makes sense - this is Crash Course COMPUTER SCIENCE after all. But at their core computers are tools employed by humans and humans are pretty complicated. So today, we’re going to discuss some

  • 11:52 Educational Technology: Crash Course Computer Science #39

    Educational Technology: Crash Course Computer Science #39

    620 views / 1 likes - added

    Today we’re going to go a little meta and talk about how computer science can support learning with educational technology. We here at Crash Course are big fans of interactive in-class learning and hands-on experiences, but we also believe in the additive

  • 10:22 Television Production: Crash Course Film Production #15

    Television Production: Crash Course Film Production #15

    527 views / 0 likes - added

    In our final episode of Crash Course Film Production, it's time to take a look at television production and how it differs from feature film production. It's subtle but it has a lot to do with how television shows make money for their many different types

  • 12:30 The Singularity, Skynet, and the Future of Computing: Crash Course Computer Science #40

    The Singularity, Skynet, and the Future of Computing: Crash Course Computer Science #40

    522 views / 0 likes - added

    In our SERIES FINALE of Crash Course Computer Science we take a look towards the future! In the past 70 years electronic computing has fundamentally changed how we live our lives, and we believe it’s just getting started. From ubiquitous computing, artifi

  • 10:40 Citizen Kane: Crash Course Film Criticism #1

    Citizen Kane: Crash Course Film Criticism #1

    554 views / 0 likes - added

    Try CuriosityStream today: http://curiositystream.com/crashcourse and use the promo code "crashcourse" to get the first two months free! Is Citizen Kane the BEST MOVIE EVER MADE? Is that even an answerable question? Michael Aranda will try to help us thro

  • 11:37 Aliens: Crash Course Film Criticism

    Aliens: Crash Course Film Criticism

    639 views / 0 likes - added

    James Cameron rocketed onto the action film scene with 1984's "The Terminator" and followed that up with a highly anticipated sequel to the 1979 film, "Alien." His film, "Aliens," would go on to not only be a financial success, but a critical one and has

  • 13:00 What Is Statistics: Crash Course Statistics #1

    What Is Statistics: Crash Course Statistics #1

    536 views / 0 likes - added

    Welcome to Crash Course Statistics! In this series we're going to take a look at the important role statistics play in our everyday lives, because statistics are everywhere! Statistics help us better understand the world and make decisions from what you'l

  • 11:07 The Editor: Crash Course Film Production #12

    The Editor: Crash Course Film Production #12

    530 views / 0 likes - added

    The Editor is yet another unsung hero in the filmmaking process. For a century of film history, Editors have taken raw footage and worked to transform it into a cohesive whole. Basically making one thing from many. But, how do they do it? In this episode

  • 11:10 Computer Vision: Crash Course Computer Science #35

    Computer Vision: Crash Course Computer Science #35

    647 views / 0 likes - added

    Today we’re going to talk about how computers see. We’ve long known that our digital cameras and smartphones can take incredibly detailed images, but taking pictures is not quite the same thing. For the past half-century, computer scientists have been wor

  • 11:42 Popular Mythical Mountains: Crash Course World Mythology #33

    Mythical Mountains: Crash Course World Mythology #33

    924 views / 0 likes - added

    Our mythical places series continues, and this week Mike Rugnetta is talking about some stories that revolve around mountains. Mountains loom large in human stories, not least because mountains are, well, large. So ascend with us to the lofty peaks of The

  • 10:01 Special Effects: Crash Course Film Production #11

    Special Effects: Crash Course Film Production #11

    651 views / 0 likes - added

    Chances are, when you hear the phrase "Special Effects," you may have images pop into your mind. The Hulk smashing a city, a lightsaber fight, or maybe an alien world. But effects can be much more subtle and have been around really since the beginning of

  • 08:42 Popular Producers: Crash Course Film Production #6

    Producers: Crash Course Film Production #6

    887 views / 1 likes - added

    So... what do Producers even do? It's a hard question to answer because there are so many different kinds of producers on a movie. In this episode of Crash Course Film Production, Lily Gladstone talks us through the different kinds of producers and what t

  • 11:37 The World Wide Web: Crash Course Computer Science #30

    The World Wide Web: Crash Course Computer Science #30

    605 views / 0 likes - added

    Today we’re going to discuss the World Wide Web - not to be confused with the Internet, which is the underlying plumbing for the web as well as other networks. The World Wide Web is built on the foundation of simply linking pages to other pages with hyper

  • 09:00 Papers & Essays: Crash Course Study Skills #9

    Papers & Essays: Crash Course Study Skills #9

    529 views / 0 likes - added

    Writing research papers is an essential skill in your career as a student, and this week we’re going to help you do that like a pro. From figuring out where to begin, to finding the best systems, to breaking out of “research recursion system” (maybe just

  • 10:06 Popular Sound Production: Crash Course Film Production #5

    Sound Production: Crash Course Film Production #5

    1,143 views / 0 likes - added

    Good sound is easy to miss because, usually, you're not paying attention to it. You're just simply, "in the story." But, sound recordists and engineers need to have a lot of technical know how as well as an instinct for story to help immerse us in the wor

  • 08:50 Test Anxiety: Crash Course Study Skills #8

    Test Anxiety: Crash Course Study Skills #8

    595 views / 0 likes - added

    Exams can be terrifying. It’s easy to feel like the weight of the world rests in these moments – like this one test determines your grades and, in turn, your whole future – even if you know, rationally, that this isn’t really the case. What’s worse is tha

  • 09:06 Popular Dissecting The Camera: Crash Course Film Production #4

    Dissecting The Camera: Crash Course Film Production #4

    717 views / 0 likes - added

    Sometimes the most intimidating part of making a movie is that little box of concentrated technology called "The Camera." But, FEAR NOT! In this episode of Crash Course Film Production, Lily helps us dissect the basics of modern movie cameras so you can h

  • 11:58 Popular The Internet: Crash Course Computer Science #29

    The Internet: Crash Course Computer Science #29

    851 views / 0 likes - added

    Today, we're going to talk about how the Internet works. Specifically, how that stream of characters you punch into your browser's address bar, like "youtube.com", return this very website. Just to clarify we're talking in a broader sense about that massi

  • 08:59 Studying for Exams: Crash Course Study Skills #7

    Studying for Exams: Crash Course Study Skills #7

    480 views / 0 likes - added

    It turns out that saving all of your studying until after midnight on the night before your big exam is not actually a great way to prepare. Today, Thomas explains some test prep strategies that actually work. Crash Course is made with Adobe Creative Clou

  • 10:26 Exercise: Crash Course Study Skills #10

    Exercise: Crash Course Study Skills #10

    665 views / 0 likes - added

    We’re finally to the end of our time together here on Crash Course Study Skills, so this week we’re taking a more holistic approach to being the best learner you can. Part of taking care of your brain is taking care of your whole body, of which your brain

  • 12:30 Cybersecurity: Crash Course Computer Science #31

    Cybersecurity: Crash Course Computer Science #31

    645 views / 0 likes - added

    Cybersecurity is a set of techniques to protect the secrecy, integrity, and availability of computer systems and data against threats. In today’s episode, we’re going to unpack these three goals and talk through some strategies we use like passwords, biom

  • 14:28 1984 by George Orwell, Part 1: Crash Course Literature 401

    1984 by George Orwell, Part 1: Crash Course Literature 401

    599 views / 1 likes - added

    In which John Green returns for a dystopian new season of Crash Course Literature! We're starting with George Orwell's classic look at the totalitarian state that could be in post-war England. Winston Smith is under the eye of Big Brother, and making us t

  • 08:39 Grip and Electric: Crash Course Film Production #10

    Grip and Electric: Crash Course Film Production #10

    545 views / 0 likes - added

    It's time to look at some of the most under-sung heroes of the film world, Grip and Electric. Doing everything from setting up dollies and tripods, to helping the cinematographer shape the light with flags and silks, the Grips are there to make it work pr

  • 11:51 Machine Learning & Artificial Intelligence: Crash Course Computer Science #34

    Machine Learning & Artificial Intelligence: Crash Course Computer Science #34

    529 views / 0 likes - added

    So we've talked a lot in this series about how computers fetch and display data, but how do they make decisions on this data? From spam filters and self-driving cars, to cutting edge medical diagnosis and real-time language translation, there has been an

  • 08:46 Designing the World of Film: Crash Course Film Production #9

    Designing the World of Film: Crash Course Film Production #9

    599 views / 0 likes - added

    Literally, ‘mise-en-scene’ means “placing on stage.” But in film, mise-en-scene encompasses everything the camera is capturing. The artists and crafts-people who work in Production Design, Wardrobe, and Hair and Makeup are responsible for setting the stag

  • 12:33 Cryptography: Crash Course Computer Science #33

    Cryptography: Crash Course Computer Science #33

    634 views / 0 likes - added

    Today we’re going to talk about how to keep information secret, and this isn’t a new goal. From as early as Julius Caesar’s Caesar cipher to Mary, Queen of Scots, encrypted messages to kill Queen Elizabeth in 1587, theres has long been a need to encrypt a

  • 08:47 The Cinematographer: Crash Course Film Production #8

    The Cinematographer: Crash Course Film Production #8

    548 views / 0 likes - added

    Who takes the pictures in a movie? Who is responsible for making a movie look good, or creating meaning with light and shadow, or make an action scene clear and thrilling? A lot of the time, that's the job of the cinematographer. In this episode of Crash

  • 11:53 Hackers & Cyber Attacks: Crash Course Computer Science #32

    Hackers & Cyber Attacks: Crash Course Computer Science #32

    663 views / 1 likes - added

    Today we're going to talk about hackers and their strategies for breaking into computer systems. Now, not all hackers are are malicious cybercriminals intent on stealing your data (these people are known as Black Hats). There are also White Hats who hunt

  • 08:44 The Director: Crash Course Film Production #7

    The Director: Crash Course Film Production #7

    508 views / 0 likes - added

    So... what do Directors even do? That's not an easy question to answer but today Lily will do her best. Generally, directors are the driving creative force behind a movie, deciding what kind of cinematic world the story will take place in, how the perform

  • 09:34 Social Stratification in the US: Crash Course Sociology #23

    Social Stratification in the US: Crash Course Sociology #23

    570 views / 0 likes - added

    Social class in America is... hard to talk about. As Sociology, the difficulty lies in pinning down what we mean by "Social Class." In this episode of Crash Course Sociology, Nicole chats to us about how Sociologists figure this out so we can all have a c

  • 11:19 The Cold War and Consumerism: Crash Course Computer Science #24

    The Cold War and Consumerism: Crash Course Computer Science #24

    574 views / 0 likes - added

    Today we’re going to step back from hardware and software, and take a closer look at how the backdrop of the cold war and space race and the rise of consumerism and globalization brought us from huge, expensive codebreaking machines in the 1940s to afford

  • 09:54 Reading Assignments: Crash Course Study Skills #2

    Reading Assignments: Crash Course Study Skills #2

    508 views / 0 likes - added

    Leaving the bookstore at the beginning of the semester you’re probably wondering how the heck you’re going to get through all of that reading. Today we’re explaining how much of that reading you really need to do and the best strategies for making your wa

  • 10:24 Why is there Social Stratification?: Crash Course Sociology #22

    Why is there Social Stratification?: Crash Course Sociology #22

    632 views / 1 likes - added

    As we get into our unit on stratification, we inevitably return to our old friends, the three sociological paradigms. How to structural functionalism, social conflict theory, and symbolic interactionism each think about stratification? How does ideology a

  • 11:32 Screens & 2D Graphics: Crash Course Computer Science #23

    Screens & 2D Graphics: Crash Course Computer Science #23

    567 views / 0 likes - added

    Today we begin our discussion of computer graphics. So we ended last episode with the proliferation of command line (or text) interfaces, which sometimes used screens, but typically electronic typewriters or teletypes onto paper. But by the early 1960s a

  • 08:51 Popular Taking Notes: Crash Course Study Skills #1

    Taking Notes: Crash Course Study Skills #1

    809 views / 0 likes - added

    The first step in honing your new study skills is to take better notes. This week Thomas will tell you everything you need to know to come to class prepared and find a note-taking system that will help you retain and review like a champ. Resources: Study

  • 10:21 Experimental and Documentary Films: Crash Course Film History #16

    Experimental and Documentary Films: Crash Course Film History #16

    536 views / 1 likes - added

    It's Craig's last episode of Film and in it he's going to talk about weird stuff... and real stuff. Experimental and Documentary films could each take up their own Crash Course series. The different styles and intents of different filmmakers make each fil

  • 11:24 Keyboards & Command Line Interfaces: Crash Course Computer Science #22

    Keyboards & Command Line Interfaces: Crash Course Computer Science #22

    678 views / 0 likes - added

    Today, we are going to start our discussion on user experience. We've talked a lot in this series about how computers move data around within the computer, but not so much about our role in the process. So today, we're going to look at our earliest form o

  • 09:54 World Cinema - Part 2: Crash Course Film History #15

    World Cinema - Part 2: Crash Course Film History #15

    562 views / 0 likes - added

    Africa, the Middle East, and South America have their own vibrant film communities and filmmakers. From social and political commentary to experimental films, these regions have made some very important pieces of cinema over the last century. In this epis

  • 09:52 Social Groups: Crash Course Sociology #16

    Social Groups: Crash Course Sociology #16

    668 views / 1 likes - added

    How do the groups that you're part of affect you? How do you, in turn, affect those groups? Today we are talking about how people in society come together with a look at social groups. We’ll look at what social groups are, the different kinds of groups th

  • 10:52 Memory: Crash Course Study Skills #3

    Memory: Crash Course Study Skills #3

    572 views / 0 likes - added

    This episode is sponsored by The Great Courses Plus. Start your free one-month trial today (and let The Great Courses Plus know we sent you!): http://ow.ly/faUN30db5c7 An essential part of learning and studying is remembering things, so this week Thomas e

  • 10:15 The Personal Computer Revolution: Crash Course Computer Science #25

    The Personal Computer Revolution: Crash Course Computer Science #25

    582 views / 3 likes - added

    Today we're going to talk about the birth of personal computing. Up until the early 1970s components were just too expensive, or underpowered, for making a useful computer for an individual, but this would begin to change with the introduction of the Alta

  • 09:19 Screenplays: Crash Course Film Production #1

    Screenplays: Crash Course Film Production #1

    581 views / 0 likes - added

    If you want to make a movie, generally you're going to want to start with a script. In this episode of Crash Course Film Production, Lily Gladstone talks about the basics of screenplays and how to get started thinking about and actually writing your movie

  • 09:24 The Impacts of Social Class: Crash Course Sociology #25

    The Impacts of Social Class: Crash Course Sociology #25

    554 views / 0 likes - added

    This week we are building on last week’s outline of American stratification to explore how class differences affect people’s daily lives. We’ll explore variations in everything from values & beliefs to health outcomes, and look at how these things can per

  • 12:20 Popular Computer Networks: Crash Course Computer Science #28

    Computer Networks: Crash Course Computer Science #28

    1,427 views / 1 likes - added

    Today we start a three episode arc on the rise of a global telecommunications network that changed the world forever. We’re going to begin with computer networks, and how they grew from small groups of connected computers on LAN networks to eventually lar

  • 10:27 Procrastination: Crash Course Study Skills #6

    Procrastination: Crash Course Study Skills #6

    673 views / 0 likes - added

    You’re on YouTube right now, but you should probably be studying or writing that research paper. But as long as you’re here, we’re going to help you figure out how to get the better of your desire to procrastinate in the future. Just don’t forget about us

  • 09:24 Social Class & Poverty in the US: Crash Course Sociology #24

    Social Class & Poverty in the US: Crash Course Sociology #24

    587 views / 1 likes - added

    Today we’re breaking down the five different social class in the United States: the upper class, the upper middle class, the average middle class, the working class, and the lower class. We’ll also go over what poverty looks like in the United States. Cra

  • 09:57 The Filmmaker's Army: Crash Course Film Production #3

    The Filmmaker's Army: Crash Course Film Production #3

    533 views / 0 likes - added

    Who does what on a film set? And how many of them are there? What is HMU? What is a Scripty? In this episode of Crash Course Film Production, Lily gives us A BIG OVERVIEW on the Production Team. Who they are, who they report to, and why they're important.

  • 12:41 3D Graphics: Crash Course Computer Science #27

    3D Graphics: Crash Course Computer Science #27

    654 views / 0 likes - added

    Today we’re going to discuss how 3D graphics are created and then rendered for a 2D screen. From polygon count and meshes, to lighting and texturing, there are a lot of considerations in building the 3D objects we see in our movies and video games, but th

  • 10:13 Popular Focus & Concentration: Crash Course Study Skills #5

    Focus & Concentration: Crash Course Study Skills #5

    823 views / 0 likes - added

    Sign up for your FREE trial of The Great Courses Plus here: http://ow.ly/PhPe30egcrb Have you ever noticed how easy it is to get distracted while studying – even when you know you really don’t have time for Facebook, Snapchat, Cookie Clicker, or whatever

  • 08:16 Pitching and Pre-Production: Crash Course Film Production #2

    Pitching and Pre-Production: Crash Course Film Production #2

    538 views / 0 likes - added

    Pitching your movie to people can be hard. A studio, a friend, your mom... each of these entities will have different stressed and give you different results. But, what's important in a pitch? And what happens after the pitch? How do you get your movie re

  • 12:59 Graphical User Interfaces: Crash Course Computer Science #26

    Graphical User Interfaces: Crash Course Computer Science #26

    640 views / 0 likes - added

    Today, we're going to discuss the critical role graphical user interfaces, or GUIs played in the adoption of computers. Before the mid 1980's the most common way people could interact with their devices was through command line interfaces, which though ef

  • 09:26 Popular Planning & Organization: Crash Course Study Skills #4

    Planning & Organization: Crash Course Study Skills #4

    817 views / 1 likes - added

    The best way to make sure you’re making the most of the time you have is to start off well organized. This week we’re talking about planning and organizational systems and how to set yourself up for success. Resources: Planning Mode vs. Robot Mode: https:

  • 10:27 Why Human Ancestry Matters: Crash Course Big History 205

    Why Human Ancestry Matters: Crash Course Big History 205

    491 views / 0 likes - added

    This week, Emily Graslie is teaching you about human ancestry and geneaology, how we got to be the species we are, and why that matters in our zoomed out look at Big History. For more information, visit the Big History Project: http://www.bighistoryprojec

  • 13:50 Popular Integrated Circuits & Moore’s Law: Crash Course Computer Science #17

    Integrated Circuits & Moore’s Law: Crash Course Computer Science #17

    999 views / 0 likes - added

    Get your first two months of CuriosityStream free by going to http://curiositystream.com/crashcourse and using the promo code “crashcourse”. So you may have heard of Moore's Law and while it isn't truly a law it has pretty closely estimated a trend we've

  • 11:30 Why Human Evolution Matters: Crash Course Big History 204

    Why Human Evolution Matters: Crash Course Big History 204

    695 views / 0 likes - added

    This week on Crash Course Big History, Emily is talking about process of human evolution, and the knack for innovation that has allowed humans to become so dominant on the Earth. Human innovation, and the ability to build on those innovations generation a

  • 12:22 Why the Evolutionary Epic Matters: Crash Course Big History #203

    Why the Evolutionary Epic Matters: Crash Course Big History #203

    440 views / 0 likes - added

    Today we're talking about evolution–basically the history of all life on Earth. The thing is, why are we talking about this. Well, the story of life, all the way back to single celled microbes billions of years ago, is all part of our human story. An impo

  • 09:16 The Silent Era: Crash Course Film History #9

    The Silent Era: Crash Course Film History #9

    604 views / 0 likes - added

    The Silent Era of Hollywood set a lot of things into motion in terms of how movies were made and sold. Big stars were one of the main ways studios tried to make their movies stand apart from one another and get the public to make choices at the cinema. Bu

  • 10:35 Popular Software Engineering: Crash Course Computer Science #16

    Software Engineering: Crash Course Computer Science #16

    1,004 views / 0 likes - added

    Today, we’re going to talk about how HUGE programs with millions of lines of code like Microsoft Office are built. Programs like these are way too complicated for a single person, but instead require teams of programmers using the tools and best practices

  • 09:36 Breaking the Silence: Crash Course Film History #10

    Breaking the Silence: Crash Course Film History #10

    536 views / 1 likes - added

    Nothing changed movies like the arrival of synchronous sound. NOTHING! Acting, directing, cinematography, and presentation all had to be rethought. Some studios were more quick to take on the challenge while others waited until the last moment. Some actor

  • 13:36 Popular Operating Systems: Crash Course Computer Science #18

    Operating Systems: Crash Course Computer Science #18

    748 views / 0 likes - added

    Get 10% off a custom domain and email address by going to https://www.hover.com/CrashCourse. So as you may have noticed from last episode, computers keep getting faster and faster, and by the start of the 1950s they had gotten so fast that it often took l

  • 09:56 Popular The Golden Age of Hollywood: Crash Course Film History #11

    The Golden Age of Hollywood: Crash Course Film History #11

    769 views / 0 likes - added

    It's time for the glitz and the glamour of big motion pictures that helped keep American spirits up during and after the Great Depression. Sound was a huge change to motion pictures, but there were still a few technological innovations to come, like color

  • 12:17 Memory & Storage: Crash Course Computer Science #19

    Memory & Storage: Crash Course Computer Science #19

    575 views / 0 likes - added

    Pre-order our limited edition Crash Course: Computer Science Floppy Disk Coasters here! https://store.dftba.com/products/computer-science-coasters So we’ve talked about computer memory a couple times in this series, but what we haven’t talked about is sto

  • 10:30 Independent Cinema: Crash Course Film History #12

    Independent Cinema: Crash Course Film History #12

    629 views / 0 likes - added

    Hollywood was riding high until their formula got to be stale. In places like Italy and France (as well as other places in the world we'll talk about soon) filmmakers were starting to break out of the mold and make daring films that challenged the idea of

  • 12:17 Why Early Globalization Matters: Crash Course Big History #206

    Why Early Globalization Matters: Crash Course Big History #206

    604 views / 0 likes - added

    Globalization has been in process for centuries, and has had a huge effect on Big History, and on Collective Learning. This week, Emily is investigating early globalization through three things that moved around the world and shaped collective learning in

  • 12:03 Popular Files & File Systems: Crash Course Computer Science #20

    Files & File Systems: Crash Course Computer Science #20

    794 views / 0 likes - added

    Today we’re going to look at how our computers read and interpret computer files. We’ll talk about how some popular file formats like txt, wave, and bitmap are encoded and decoded giving us pretty pictures and lifelike recordings from just strings of 1’s

  • 12:48 Popular Compression: Crash Course Computer Science #21

    Compression: Crash Course Computer Science #21

    1,377 views / 0 likes - added

    Get your first two months of CuriosityStream free by going to http://curiositystream.com/crashcourse and using the promo code “crashcourse”. So last episode we talked about some basic file formats, but what we didn’t talk about is compression. Often files

  • 10:16 Popular World Cinema - Part 1: Crash Course Film History #14

    World Cinema - Part 1: Crash Course Film History #14

    710 views / 0 likes - added

    The world is a big place and cinema isn't limited to just the U.S. and Europe. There are a lot of vibrant and influential film movements and cultures from all over the world. In this episode of Crash Course Film History, Craig talks to us a little about s

  • 10:19 Home Video: Crash Course Film History #13

    Home Video: Crash Course Film History #13

    615 views / 0 likes - added

    As the New Hollywood gained steam in the late 70s and early 80s, another revenue stream opened its doors: home video. From Betamax to Laserdisc to Bluray to streaming services, home video revolutionized how we ingest movies. In this episode of Crash Cours


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