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Search Results: "Andrei Karlov"

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  • 03:00 How bridges were built in Central Europe in the middle-ages

    How bridges were built in Central Europe in the middle-ages

    89 views / 0 likes - added

    Great animation showing how bridges were built in the middle ages.3D grafika a postprodukce: Tomáš Musílek Odborná spolupráce: Ing. Arch. Ondej Šefc Grafická spolupráce: Mgr. Zdenk Maza Více i

  • 00:29 Watch the first ever video of a chemical bond breaking and forming

    Watch the first ever video of a chemical bond breaking and forming

    106 views / 0 likes - added

    Pay attention to the 2 black atoms of a metal molecule being shot with a beam of electrons, breaking their bond and in the process revealing a transitional state where the atoms are neither fused or completely separated. This is the first time it has been

  • 11:00 Why Cosmic Evolution Matters: Crash Course Big History #201

    Why Cosmic Evolution Matters: Crash Course Big History #201

    270 views / 0 likes - added

    Crash Course Big History is back! It turns out, we couldn't tell all of the 13.8 billion years of the history of the universe in 10 Crash Course Episodes. So, Big History host Emily Graslie has returned to add 6 more episodes that look at why the stuff we

  • 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

    114 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

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

    The New Chemistry: Crash Course History of Science #18

    91 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

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

    Biology Before Darwin: Crash Course History of Science #19

    111 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

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

    Biotechnology: Crash Course History of Science #40

    104 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

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

    Electricity: Crash Course History of Science #27

    107 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

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

    Thermodynamics: Crash Course History of Science #26

    91 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

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

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

    96 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:

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

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

    84 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

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

    The New Anatomy: Crash Course History of Science #15

    92 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

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

    Earth Science: Crash Course History of Science #20

    137 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

  • 09:39 Major Sociological Paradigms: Crash Course Sociology #2

    Major Sociological Paradigms: Crash Course Sociology #2

    469 views / 0 likes - added

    This week we introduce sociology’s three major theoretical paradigms, and some of the advantages and disadvantages of each paradigm. Crash Course is made with Adobe Creative Cloud. Get a free trial here: https://www.adobe.com/creativecloud.html *** Crash

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

    The Industrial Revolution: Crash Course History of Science #21

    107 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

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

    Migration: Crash Course European History #29

    84 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

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

    Newton and Leibniz: Crash Course History of Science #17

    87 views / 0 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

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

    Climate Science: Crash Course History of Science #45

    75 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

  • 10:24 Nuclear Physics: Crash Course Physics #45

    Nuclear Physics: Crash Course Physics #45

    358 views / 0 likes - added

    Take the PBS Digital Studios annual survey: http://surveymonkey.com/r/pbsds2017 It's time for our second to final Physics episode. So, let's talk Einstein and Nuclear Physics. What does E=MC2 actually mean? Why is it so useful to us as physicists and huma

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

    Bodies and Dollars: Crash Course History of Science #41

    86 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

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

    Why Human Ancestry Matters: Crash Course Big History 205

    264 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

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

    Life and Longevity: Crash Course History of Science #44

    96 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

  • 12:22 Sula: Crash Course Literature #9

    Sula: Crash Course Literature #9

    367 views / 0 likes - added

    This week, John is talking about Toni Morrison's novel of friendship, betrayal, and loss, Sula. Sula tells the story of two African American girls, the town where they grew up, the tragic even that was central to their youth, and the very different people

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

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

    88 views / 0 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

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

    Ecology: Crash Course History of Science #38

    89 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

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

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

    123 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

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

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

    98 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

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

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

    92 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

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

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

    70 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

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

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

    71 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

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

    The Atomic Bomb: Crash Course History of Science #33

    100 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

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

    Chi-Square Tests: Crash Course Statistics #29

    94 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,

  • 09:31 The Lumiere Brothers: Crash Course Film History #3

    The Lumiere Brothers: Crash Course Film History #3

    357 views / 0 likes - added

    As cinema started to take off, things like "single viewer" devices weren't going to cut it as the medium advanced. In this episode of Crash Course Film History, Craig talks to us about the Lumiere brothers, their invention of the Cinematographe, and the i

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

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

    100 views / 0 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

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

    Absolute Monarchy: Crash Course European History #13

    143 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

  • 11:04 Why Star Stuff Matters: Crash Course Big History 202

    Why Star Stuff Matters: Crash Course Big History 202

    325 views / 0 likes - added

    So, the stars made the elements, we're all made of star stuff, etc. But what does all this mean? This week Emily Graslie teaches you how the formation of chemical elements in the bellies of the earliest stars made life as we know it possible. Namely, we'l

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

    Why Early Globalization Matters: Crash Course Big History #206

    282 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

  • 12:22 Creation from the Void: Crash Course Mythology #2

    Creation from the Void: Crash Course Mythology #2

    371 views / 0 likes - added

    Today on Crash Course Mythology we’re starting in on creation stories. This week, we’ll focus on the creation of the universe out of nothing, or Ex Nihlio creation. Basically, a god decides to make a universe out of nothing. We’ll look a

  • 12:05 You Know Im All About that Bayes: Crash Course Statistics #24

    You Know Im All About that Bayes: Crash Course Statistics #24

    87 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

  • 09:56 Sociology & the Scientific Method: Crash Course Sociology #3

    Sociology & the Scientific Method: Crash Course Sociology #3

    306 views / 0 likes - added

    What puts the “science” in social science? Today we’ll explore positivist sociology and how sociologists use empirical evidence to explore questions about the social world. We’ll also introduce two alternatives: interpretative sociology and critical socio

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

    Big Data Problems: Crash Course Statistics #39

    115 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

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

    The Scientific Methods: Crash Course History of Science #14

    106 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

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

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

    81 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

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

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

    109 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

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

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

    290 views / 0 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

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

    Supervised Machine Learning: Crash Course Statistics #36

    106 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

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

    Social Groups: Crash Course Sociology #16

    336 views / 0 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

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

    Unsupervised Machine Learning: Crash Course Statistics #37

    94 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

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

    The Normal Distribution: Crash Course Statistics #19

    99 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

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

    Procrastination: Crash Course Study Skills #6

    342 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

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

    How To Become An Engineer: Crash Course Engineering #45

    100 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

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

    What Is Artificial Intelligence? Crash Course AI #1

    74 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

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

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

    125 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

  • 09:42 What Is Sociology?: Crash Course Sociology #1

    What Is Sociology?: Crash Course Sociology #1

    346 views / 0 likes - added

    Today we kick off Crash Course Sociology by explaining what exactly sociology is. We’ll introduce the sociological perspective and discuss how sociology differentiates itself from the other social sciences. We’ll also explore what sociology can do, and ho

  • 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

    88 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

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

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

    88 views / 0 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

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

    Intro to Big Data: Crash Course Statistics #38

    116 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

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

    Unsupervised Learning: Crash Course AI #6

    79 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

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

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

    247 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

  • 10:11 Sociology Research Methods: Crash Course Sociology #4

    Sociology Research Methods: Crash Course Sociology #4

    433 views / 0 likes - added

    Today we’re talking about how we actually DO sociology. Nicole explains the research method: form a question and a hypothesis, collect data, and analyze that data to contribute to our theories about society. Crash Course is made with Adobe Creative Cloud.

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

    Taking Notes: Crash Course Study Skills #1

    529 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

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

    English Theater After Shakespeare: Crash Course Theater #17

    91 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

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

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

    94 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

  • 10:12 Robotics: Crash Course AI #11

    Robotics: Crash Course AI #11

    95 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

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

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

    111 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

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

    The Enlightenment: Crash Course European History #18

    182 views / 1 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

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

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

    69 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

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

    The New Astronomy: Crash Course History of Science #13

    103 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

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

    Neural Networks and Deep Learning: Crash Course AI #3

    82 views / 0 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

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

    The Northern Renaissance: Crash Course European History #3

    114 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.

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

    The Impacts of Social Class: Crash Course Sociology #25

    290 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

  • Alchemy: History of Science #10

    Alchemy: History of Science #10

    84 views / 0 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

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

    Italian and German Unification: Crash Course European History #27

    139 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

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

    Symbolic AI: Crash Course AI #10

    90 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

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

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

    79 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

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

    Planning & Organization: Crash Course Study Skills #4

    290 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:

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

    Web Search: Crash Course AI #17

    97 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

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

    Why Human Evolution Matters: Crash Course Big History 204

    419 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

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

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

    104 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

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

    Humans and AI working together: Crash Course AI #14

    80 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

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

    Training Neural Networks: Crash Course AI #4

    90 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

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

    Studying for Exams: Crash Course Study Skills #7

    263 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

  • 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

    79 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

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

    Algorithmic Bias and Fairness: Crash Course AI #18

    78 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

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

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

    87 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,

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

    Scientific Revolution: Crash Course European History #12

    153 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

  • 06:44 Are You Alone? (In The Universe)

    Are You Alone? (In The Universe)

    387 views / 0 likes - added

    Are you alone? To answer this question we have to take a look what "you" are first. What are you made of and where you stand in this universe. Are you your body? Your atoms? And how are your parts connected to the big picture? You can get the MUSIC of the

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

    Natural Language Processing: Crash Course AI #7

    102 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

  • 06:44 Are You Alone? (In The Universe)

    Are You Alone? (In The Universe)

    216 views / 0 likes - added

    Are you alone? To answer this question we have to take a look what "you" are first. What are you made of and where you stand in this universe. Are you your body? Your atoms? And how are your parts connected to the big picture? You can get the MUSIC of the

  • 08:05 Shrinking an Elephant to the Size of a Mouse

    Shrinking an Elephant to the Size of a Mouse

    441 views / 0 likes - added

    Thanks a lot to Skillshare for supporting this channel. Kurzgesagt Newsletter: http://eepurl.com/cRUQxz Support us on Patreon so we can make more videos (and get cool stuff in return): https://www.patreon.com/Kurzgesagt?ty=h Kurzgesagt merch: http://bit.l

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

    Reinforcement Learning: Crash Course AI#9

    80 views / 0 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

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

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

    353 views / 0 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

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

    Test Anxiety: Crash Course Study Skills #8

    344 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

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

    Florence and the Renaissance: Crash Course European History #2

    93 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

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

    Mythical Mountains: Crash Course World Mythology #33

    396 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

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

    Supervised Learning: Crash Course AI #2

    95 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

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

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

    79 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

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

    AI Playing Games: Crash Course AI #12

    82 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

  • 13:02 What Is Myth? Crash Course Mythology #1

    What Is Myth? Crash Course Mythology #1

    626 views / 4 likes - added

    Welcome to Crash Course World Mythology, our latest adventure (and this series may be literally adventurous) in education. Over the next 40 episodes or so, we and Mike Rugnetta are going to learn about the world by looking at the foundational stories of a

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

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

    74 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

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

    The Age of Exploration: Crash Course European History #4

    156 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

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

    Reformation and Consequences: Crash Course European History #7

    128 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

  • 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

    88 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

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

    Papers & Essays: Crash Course Study Skills #9

    238 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

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

    The French Revolution: Crash Course European History #21

    145 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

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

    Napoleon Bonaparte: Crash Course European History #22

    646 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

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

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

    81 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

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

    Using Wikipedia: Crash Course Navigating Digital Information #5

    67 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

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

    Economic Depression and Dictators: Crash Course European History #37

    133 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

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

    English Civil War: Crash Course European History #14

    128 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

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

    Reversibility & Irreversibility: Crash Course Engineering #8

    82 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

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

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

    85 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'

  • 08:13 What Number Comes Next? - Numberphile

    What Number Comes Next? - Numberphile

    197 views / 0 likes - added

    Maybe pause the video and see if you can figure these out? Featuring Neil Sloane of OEIS fame... More links & stuff in full description below, including spoilers ↓↓↓ Extra footage from this video: https://youtu.be/ydn7s9-3GRc Neil Sloane is the founder of

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

    Exercise: Crash Course Study Skills #10

    428 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

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

    Expansion and Resistance: Crash Course European History #28

    122 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

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

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

    203 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

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

    Reading Assignments: Crash Course Study Skills #2

    222 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

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

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

    81 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

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

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

    82 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

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

    Why Moving People is Complicated: Crash Course Engineering #41

    99 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

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

    The Future of Artificial Intelligence: Crash Course AI #20

    207 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

  • 07:14 Death From Space — Gamma-Ray Bursts Explained

    Death From Space — Gamma-Ray Bursts Explained

    427 views / 0 likes - added

    Use the URL: http://www.squarespace.com/nutshell for 10% with a new website and support this channel. Also make your life easier. Thanks a lot to Squarespace for supporting the show! There are cosmic snipers firing at random into the unvierse. What are th

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

    Heat Transfer: Crash Course Engineering #14

    100 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

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

    The Industrial Revolution: Crash Course European History #24

    172 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

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

    The Congress of Vienna: Crash Course European History #23

    111 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

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

    Neural Networks: Crash Course Statistics #41

    81 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

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

    Focus & Concentration: Crash Course Study Skills #5

    481 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

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

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

    96 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

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

    Dutch Golden Age: Crash Course European History #15

    101 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

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

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

    82 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

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

    Modern Life: Crash Course European History #30

    70 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

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

    What Is Statistics: Crash Course Statistics #1

    269 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

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

    The Protestant Reformation: Crash Course European History #6

    93 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

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

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

    351 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

  • 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

    81 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

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

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

    99 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

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

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

    126 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

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

    World War II: Crash Course European History #38

    110 views / 0 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

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

    Medieval Europe: Crash Course European History #1

    152 views / 0 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

  • 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

    84 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

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

    Witchcraft: Crash Course European History #10

    129 views / 0 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

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

    Enlightened Monarchs: Crash Course European History #19

    94 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

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

    World War I Battlefields: Crash Course European History #33

    128 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

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

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

    96 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

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

    Eastern Europe Consolidates: Crash Course European History #16

    105 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

  • Metals & Ceramics: Crash Course Engineering #19

    Metals & Ceramics: Crash Course Engineering #19

    90 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

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

    How Engineering Robots Works: Crash Course Engineering #33

    139 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

  • 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

    110 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

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

    18th Century Warfare: Crash Course European History #20

    100 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

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

    Memory: Crash Course Study Skills #3

    303 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

  • 06:49 Popular The Immune System Explained I – Bacteria Infection

    The Immune System Explained I – Bacteria Infection

    752 views / 2 likes - added

    Every second of your life you are under attack. Bacteria, viruses, spores and more living stuff wants to enter your body and use its resources for itself. The immune system is a powerful army of cells that fights like a T-Rex on speed and sacrifices itsel

    Featured
  • 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

    121 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

  • 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

    84 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

  • 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

    105 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

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

    Expansion and Consequences: Crash Course European History #5

    106 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

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

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

    94 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

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

    Stress, Strain & Quicksand: Crash Course Engineering #12

    94 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

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

    Mass Separation: Crash Course Engineering #17

    109 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

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

    The History of Chemical Engineering: Crash Course Engineering #5

    116 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

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

    The Mighty Power of Nanomaterials: Crash Course Engineering #23

    140 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

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

    How Seawater Sabotages Ships: Crash Course Engineering #43

    81 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

  • 08:06 Why Blue Whales Don't Get Cancer - Peto's Paradox

    Why Blue Whales Don't Get Cancer - Peto's Paradox

    187 views / 0 likes - added

    Get Merch designed with from https://kgs.link/shop Join the Patreon Bird Army https://kgs.link/patreon More infos and links are just a click away Cancer is a creepy and mysterious thing. While we tried to understand it, to get better at killing it, we dis

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

    Catholic Counter-Reformation: Crash Course European History #9

    115 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

  • 07:22 Everything You Need To Know About Planet Earth

    Everything You Need To Know About Planet Earth

    537 views / 1 likes - added

    Planet Earth is this solid thing you are standing on right now. In your everyday life you don't really waste a thought about how amazing this is. A giant, ancient, hot rock. How did it come into existence and how big is it really? You will be surprised. T

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  • 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

    121 views / 1 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

  • 07:22 Everything You Need to Know About Planet Earth

    Everything You Need to Know About Planet Earth

    179 views / 0 likes - added

    Planet Earth is this solid thing you are standing on right now. In your everyday life you don't really waste a thought about how amazing this is. A giant, ancient, hot rock. How did it come into existence and how big is it really? You will be surprised. T

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

    Social Stratification in the US: Crash Course Sociology #23

    329 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

  • 10:06 Universal Basic Income Explained – Free Money for Everybody? UBI

    Universal Basic Income Explained – Free Money for Everybody? UBI

    317 views / 0 likes - added

    What is UBI? How would free money change our lives. Kurzgesagt Newsletter: http://eepurl.com/cRUQxz Support us on Patreon so we can make more videos (and get cool stuff in return): https://www.patreon.com/Kurzgesagt?ty=h Kurzgesagt merch: http://bit.ly/1P

  • 08:35 The World War of the Ants  The Army Ant

    The World War of the Ants The Army Ant

    653 views / 4 likes - added

    Thanks to Curiosity Stream for supporting us in making this video.Go to https://curiositystream.com/kurzgesagt for a free 31-day-trial.Sources:https://sites.google.com/view/sources-world-war-ants/Every day billions of soldiers fight a merciless war on tho

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

    The Law of Conservation: Crash Course Engineering #7

    86 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

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

    Smart Tattoos & Tiny Robots: Crash Course Engineering #37

    103 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

  • 07:55 The Egg

    The Egg

    232 views / 1 likes - added

    The Egg Story by Andy Weir Animated by Kurzgesagt A Big Thanks to Andy Weir for allowing us to use his story. The original was released here: http://www.galactanet.com/oneoff/theegg_mod.html Visit his website here: http://www.andyweirauthor.com/ If you wa

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

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

    102 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

  • 11:10 Biomaterials: Crash Course Engineering #24

    Biomaterials: Crash Course Engineering #24

    125 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

  • 10:40 How Many People Did Nuclear Energy Kill? Nuclear Death Toll

    How Many People Did Nuclear Energy Kill? Nuclear Death Toll

    226 views / 0 likes - added

    The first 1000 people to use this link will get a free trial of Skillshare: https://skl.sh/kurzgesagtinanutshell01211 Sources & further reading: https://sites.google.com/view/sources-nuclear-death-toll/ Nuclear energy creates an uneasy feeling of dang

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

    The History of Electrical Engineering: Crash Course Engineering #4

    81 views / 0 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

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

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

    87 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

  • 05:11 Atoms As Big As Mountains — Neutron Stars Explained

    Atoms As Big As Mountains — Neutron Stars Explained

    481 views / 0 likes - added

    Neutron Stars are some of the strangest things in the Universe. Not quite massive enough to become black holes they are basically atoms as big as mountains with properties so extreme it's mind-blowing. And if you get too close to a neutron star you are in

  • 05:31 The Ebola Virus Explained — How Your Body Fights For Survival

    The Ebola Virus Explained — How Your Body Fights For Survival

    485 views / 0 likes - added

    What does the Ebola virus actually do in your body? Why is it so dangerous and why does it kill so many people? We take a look at the apocalyptic war that rages in the body after an infection by the Ebola virus and the soldiers fighting. Videos, explainin

  • 09:13 Wormholes Explained – Breaking Spacetime

    Wormholes Explained – Breaking Spacetime

    339 views / 2 likes - added

    To support Kurzgesagt and learn more about Brilliant, go to https://www.brilliant.org/nutshell and sign up for free. The first 688 people that go to that link will get 20% off the annual Premium subscription. Are wormholes real or are they just magic disg

  • 02:11 Which Bear Is Best?

    Which Bear Is Best?

    351 views / 0 likes - added

    Why do some species flourish and others falter? Sometimes it just comes down to luck. A big thank-you to our supporters on https://www.patreon.com/MinuteEarth : - Today I Found Out - Maarten Bremer - Jeff Straathof - Mark Roth - Tony Fadell - Muhammad Shi

  • 11:05 How Large Can a Bacteria get? Life & Size 3

    How Large Can a Bacteria get? Life & Size 3

    95 views / 0 likes - added

    The first 1000 people to use this link will get a free trial of Skillshare: https://skl.sh/kurzgesagt9Get our new beautiful Ocean Explorer Notebook:https://shop.kurzgesagt.org/Sources & further reading: https://sites.google.com/view/sourceslifeandsize3 In

  • 04:58 How Small Is An Atom? Spoiler: Very Small.

    How Small Is An Atom? Spoiler: Very Small.

    562 views / 0 likes - added

    Atoms are very weird. Wrapping your head around exactly how weird, is close to impossible – how can you describe something that is SO removed from humans experience? But then again, they kind of make up everything, so let us try anyways. You can the MUSIC

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  • 09:46 What If Earth got Kicked Out of the Solar System? Rogue Earth

    What If Earth got Kicked Out of the Solar System? Rogue Earth

    61 views / 0 likes - added

    To get a fresh perspective on science, go to https://brilliant.org/Nutshell/ and sign up free. And theres an extra perk for kurzgesagt viewers: the first 200 people to use the link get 20% off their annual membership, which lets you view all the daily pro

  • 09:36 Why Alien Life Would be our Doom - The Great Filter

    Why Alien Life Would be our Doom - The Great Filter

    309 views / 0 likes - added

    The first 688 people to use this link will get 20% off their annual membership: http://brilliant.org/nutshell Thanks a lot to Brilliant for supporting this channel. Finding alien life on a distant planet would be amazing news - or would it? If we are not

  • 02:03 The Ultimate Conspiracy Debunker

    The Ultimate Conspiracy Debunker

    464 views / 0 likes - added

    Most Conspiracy Theories are stupid. By the power of the internet they spread like wildfire and often poison discussions. But there is hope – we developed a way to debunk conspiracies in just a few seconds… You can get the MUSIC of the video here: https:/

  • 05:57 What Is Life? Is Death Real?

    What Is Life? Is Death Real?

    625 views / 0 likes - added

    So what is the difference between you and a rock? This seems like an easy, even stupid question. But even the smartest people on earth have no idea where to draw the line between living and dead things. Which leads to mind-blowing implications. What is li

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  • 05:34 Measles Explained — Vaccinate Or Not?

    Measles Explained — Vaccinate Or Not?

    691 views / 1 likes - added

    Everybody is talking about Measles – but what does the virus actually do in the body? Is it really so harmful that you need a vaccination? We go deep into the body of an infected person and see what Measles does and how the immune system reacts to it! Vid

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  • 06:17 The Fermi Paradox II — Solutions And Ideas – Where Are All The Aliens?

    The Fermi Paradox II — Solutions And Ideas – Where Are All The Aliens?

    463 views / 1 likes - added

    Where are all the aliens? The universe is too big and too old, why have we not met aliens yet? Do they live in computers? Were they wiped out by an ancient super intelligence? Or are we just to primitive to understand their motives? Whatever the answer is

  • 05:46 Popular Is War Over? — A Paradox Explained

    Is War Over? — A Paradox Explained

    813 views / 2 likes - added

    We live in the most peaceful time in human history. Wait, what? Seriously? That can't be right, there are more wars than ever! Well, no and they're killing fewer and fewer people, even though the world population is at an all-time high...and the numbers p

  • 05:18 Nuclear Energy Explained: How Does It Work? 1/3

    Nuclear Energy Explained: How Does It Work? 1/3

    645 views / 1 likes - added

    Nuclear Energy Explained: How does it work? Nuclear Energy is a controversial subject. The pro- and anti-nuclear lobbies fight furiously, and it's difficult to decide who is right. So we're trying to clear up the issue - in this video we discuss how we go

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  • 04:10 3 Reasons Why Nuclear Energy Is Terrible! 2/3

    3 Reasons Why Nuclear Energy Is Terrible! 2/3

    676 views / 2 likes - added

    Nuclear energy might be a failed experiment. In over sixty years the technology has not only failed to keep its promise of cheap, clean and safe energy, it also caused major catastrophes and enabled more nuclear weapons while the nuclear waste problem is

  • 04:21 3 Reasons Why Nuclear Energy Is Awesome! 3/3

    3 Reasons Why Nuclear Energy Is Awesome! 3/3

    580 views / 2 likes - added

    Nuclear energy might have a lot of unused potential. Not only is it one of the best mid term solutions for global warming bit despite what gut feeling tells us, it has saved millions of lives. By investing more into better technologies we might be able to

  • 06:22 The Fermi Paradox — Where Are All The Aliens? (1/2)

    The Fermi Paradox — Where Are All The Aliens? (1/2)

    636 views / 0 likes - added

    The universe is unbelievably big – trillions of stars and even more planets. Soo… there just has to be life out there, right? But where is it? Why don’t we see any aliens? Where are they? And more importantly, what does this tell us about our own fate in

  • 11:02 How to design an actually good toaster with lessons from the 1940's

    How to design an actually good toaster with lessons from the 1940's

    263 views / 0 likes - added

    I love this toaster so dang much. Here are those as-promised links in the description; Link ONE: The original Sunbeam video; https://youtu.be/1OfxlSG6q5Y Link TWO (why am I yelling?): The Electromagnet in your Toaster https://youtu.be/zLFG068HtgM And some


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