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• 06:58

Average Rate Of Change From Graph

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Average rate of change from graph

• 03:38

Example Calcuating Magnitude Of Vector From Graph

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Example calcuating magnitude of vector from graph

• 08:28

Finding X and Y Intercepts on a Graph (TTP Video 31)

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Defining and finding the X and Y intercepts when given a graph.

• 08:20

Another Rational Function Graph Example

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Another Rational Function Graph Example More free lessons at: http://www.khanacademy.org/video?v=ReEMqdZEEX0

• 05:22

Application problem with graph

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u13_l1_t2_we4 Application problem with graph More free lessons at: http://www.khanacademy.org/video?v=ljROszF_rqs Content provided by TheNROCproject.org - (c) Monterey Institute for Technology and Education

• 04:10

How to spot a misleading graph - Lea Gaslowitz

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View full lesson: http://ed.ted.com/lessons/how-to-spot-a-misleading-graph-lea-gaslowitz When they’re used well, graphs can help us intuitively grasp complex data. But as visual software has enabled more usage of graphs throughout all media, it has also m

• 02:12

ALBERT EINSTEIN'S THEORY OF HAPPINESS

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DID YOU KNOW THAT ALBERT EINSTEIN HAD A SECRET THEORY ABOUT HAPPINESS? His theory written on a piece of paper just sold for 1.5 million dollars! But even he would have probably disapproved of this sale. Check out his theory here and choose happiness today

• 01:49

How To Find Two Function Inputs With The Same Output Given Graph (example) | Khan Academy

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Sal finds the input value other than -5 for which f(x)=f(-5), given the graph of f. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/algebra-functions/function-inputs-and-outputs/e/functions_matching_inp

• 04:04

The Quest for the Ultimate Theory

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Tune in and join the conversation during the premiere of "Loose Ends: String Theory and the Quest for the Ultimate Theory" on Friday, August 2nd at 8pm EST.Thirty-five years ago string theory took physics by storm, promising the coveted unified theory of

• 08:03

Cell Theory

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Introduction to cell theory--the idea that 1) all living things are made of one or more cells, 2) cells are the basic unit of life and 3) all cells come from other cells. Explore the roles that Hooke, Leeuwenhoek and others played in developing Cell Theor

• 05:12

What’s The Difference Between A Scientific Law And Theory? - Matt Anticole

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View full lesson: http://ed.ted.com/lessons/what-s-the-difference-between-a-scientific-law-and-theory-matt-anticole Chat with a friend about an established scientific theory, and she might reply, “Well, that’s just a theory.” But a conversation about an e

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• 19:10

String Theory - Brian Greene

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View full lesson: http://ed.ted.com/lessons/brian-greene-on-string-theory Physicist Brian Greene explains superstring theory, the idea that miniscule strands of energy vibrating in 11 dimensions create every particle and force in the universe. Talk by Bri

• 07:04

Stephen Hawking's Final Theory on the Origin of the Universe

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Stephen Hawking's Final Theory on the Origin of the Universe Has Just Been Published, in collaboration with Thomas Hertog. Here Hertog briefly explains their theory Stephen Hawking's Final Theory on the Origin of the Universe Has Just Been Published, in c

• 05:52

Could Everything We Know About String Theory Be Wrong?

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It’s been 50 years since string theory was first proposed, but now some new research could call it all into question. WTF is Quantum Retrocausality? (ft. Physics Girl) - https://youtu.be/5hYBeFNSv2o Read More: String Theory May Create Far Fewer Universes

• 06:12

The wacky history of cell theory - Lauren Royal-Woods

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View full lesson: http://ed.ted.com/lessons/the-wacky-history-of-cell-theory Scientific discovery isn't as simple as one good experiment. The weird and wonderful history of cell theory illuminates the twists and turns that came together to build the found

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• 01:07

How To Match Function Input To Output Given The Graph (example) | Algebra I | Khan Academy

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Sal finds the input value for which g(x)=-2 given the graph of g. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/algebra-functions/function-inputs-and-outputs/e/functions_matching_inputs_outputs?utm_so

• 12:58

What’s Wrong With The Big Bang Theory? | Space Time | PBS Digital Studios

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There's a problem with the Big Bang Theory. Get your own Space Time t-shirt at http://bit.ly/1QlzoBi Tweet at us! @pbsspacetime Facebook: facebook.com/pbsspacetime Email us! pbsspacetime [at] gmail [dot] com Comment on Reddit: http://www.reddit.com/r/pbss

• 09:39

Natural Law Theory: Crash Course Philosophy #34

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Our exploration of ethical theories continues with another theistic answer to the grounding problem: natural law theory. Thomas Aquinas’s version of this theory says that we all seek out what’s known as the basic goods and argued that instinct and reason

• 16:18

Albert Einstein's Theory of Relativity

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Easy to understand animation explaining all of Einstein's Theory. Covers both Special Relativity and General Relativity.

• 04:37

Group Theory 101: How To Play A Rubik’s Cube Like A Piano - Michael Staff

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View full lesson: http://ed.ted.com/lessons/group-theory-101-how-to-play-a-rubik-s-cube-like-a-piano-michael-staff Mathematics explains the workings of the universe, from particle physics to engineering and economics. Math is even closely related to music

• 03:44

An Unusual Way To Prove Einstein's Theory Of Relativity

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When rockets misfire their payloads, scientists use the misplaced satellites to prove the Theory of Relativity. How do they do it? How GPS Works ►►►► http://dne.ws/1N6wX3V Sign Up For The TestTube Newsletter Here ►►►► http://dne.ws/1McUJdm Read More: Wayw

• 03:55

This Theory Suggests Our Perspective of Galaxies Could Be Wrong

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Our perspective from Earth could be distorting our understanding of space. Here’s what you need to know about the theory of AGN unification. What Really Happens When Galaxies Collide - https://youtu.be/eWqETkudZXo Read More: Why It’s Hard to Recognize a B

• 09:22

Aristotle & Virtue Theory: Crash Course Philosophy #38

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This week we explore final ethical theory in this unit: Aristotle’s virtue theory. Hank explains the Golden Mean, and how it exists as the midpoint between vices of excess and deficiency. We’ll also discuss moral exemplars, and introduce the concept of “e

• 07:12

Theory Vs. Hypothesis Vs. Law… Explained!

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Think you know the difference? Tweet ⇒ http://bit.ly/OKTBStheory Share on FB ⇒ http://bit.ly/theoryFB ↓ More info and sources below ↓ Some people try to attack things like evolution by natural selection and man-made climate change by saying “Oh, that’s ju

• 01:40

Theory of Everything (intro)

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A brief intro to the current theory of (almost) everything - the Standard Model of particle physics. It's like cake, only universal. minutephysics is now on Google+ - http://bit.ly/qzEwc6 And facebook - http://facebook.com/minutephysics And twitter - @min

• 02:19

Theory of Everything: What is Matter?

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What is matter, anyway? What does it have to do with math? And why aren't you made of Jesus? Delving deeper into the theory of (almost) everything - the Standard Model of particle physics. minutephysics is now on Google+ - http://bit.ly/qzEwc6 And faceboo

• 18:59

The Four Color Theorem | Coloring a Planar Graph

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Train your problem solving skills today with SkillShare: https://skl.sh/upandatom3 Check out the video we did over on Willie's Channel! https://youtu.be/jwQlULjESTs Subscribe to Willie's Channel KhAnubis! https://www.youtube.com/user/tobirates The Four Co

• 01:34

Solving Ratio Problems With Graph | Pre-Algebra | Khan Academy

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In this example we'll plot points on the x and y axis to reflect the given ratios. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/rates-and-ratios/ratios_and_proportions/e/solving-ratio-problems-wi

• 07:34

Cool Ways to Understand Einstein's Theory of Relativity

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110 years ago Albert Einstein published a theory that revolutionized the way we think about the universe. In this video I'll show you how to prove its two postulates using easy-to-understand real-world experiments, and how even the simplest understanding

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• 08:01

String Theory Explained – What is The True Nature of Reality?

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Is String Theory the final solution for all of physic’s questions or an overhyped dead end? This video was funded by SNSF under Agora Grant n. 171622 and through the NCCR SwissMAP: The Mathematics of Physics. Kurzgesagt Newsletter: http://eepurl.com/cRUQx

• 02:25

Charles Darwin's theory of evolution explained | BBC Ideas

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What is Darwinism? And how much impact did Charles Darwin's theory of evolution have on the world? Philosopher Nigel Warburton explores. Subscribe to BBC Ideas https://bbc.in/2F6ipavThis video was made by Somethin' Else. --------Do you have a curious mind

• 09:09

Kinetic Theory and Phase Changes: Crash Course Physics #21

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Get Your Crash Course Physics Mug here: https://store.dftba.com/products/crashcourse-physics-mug How the heck do we map out a planet without oceans? NASA had to figure that out when we sent the Mariner 9 probe to Mars. There's some tricky, yet fascinating

• 02:57

Reading Bar Graph Examples | Measurement And Data | Early Math | Khan Academy

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• 04:59

Game theory challenge: Can you predict human behavior? - Lucas Husted

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Solve this classic game theory challenge: given integers from 0 to 100, what would the whole number closest to of the average of all numbers guessed be?--Given a range of integers from 0 to 100, what would the whole number closest to 2/3 of the average of

• 02:03

Gravitational Lensing Theory Explained | Earth Lab

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How does matter affect light? Physics has the answer. Subscribe: http://bit.ly/SubscribeToEarthLab All the best Earth Lab videos http://bit.ly/EarthLabOriginals Best of BBC Earth videos http://bit.ly/TheBestOfBBCEarthVideos The Doctors Are In The House ht

• 05:43

It's not just Autotune - how singers cheat today (Pop Theory)

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Thought autotune is the only thing used to fix singer's voices? Think again! Pop Theory is a series that explores the secrets and methods of modern pop music. Want to know more about the inner workings of popular songs & artists? Then this is for you.

• 09:02

Divine Command Theory: Crash Course Philosophy #33

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As we venture into the world of ethics, there are a lot of different answers to the grounding problem for us to explore. One of the oldest and most popular is the divine command theory. But with age comes a long history of questions, too, such as the dile

• 09:56

Game Theory And Oligopoly: Crash Course Economics #26

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Would you like to play a game, Dr. Falken? Actually, this episode isn't really about games, or Matthew Broderick, or Thermonuclear War. But enough with the long references to 1983's best movie, War Games. Today Jacob and Adriene are going to teach you abo

• 09:54

Does the Theory of Evolution Really Matter?

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Support Stated Clearly on Patreon: https://www.patreon.com/statedclearly Students who may be disinterested or uncomfortable with the science of evolution often wonder why it is worth their time and effort to understand. Stated Clearly and Emory University

• 16:32

Pilot Wave Theory and Quantum Realism | Space Time | PBS Digital Studios

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There’s one interpretation of the meaning of quantum mechanics that manages to skip a lot of the unphysical weirdness of the mainstream interpretations: it's de Broglie-Bohm pilot wave theory. Help us continue making this show by contributing here: https:

• 14:07

Cantor's Infinity Paradox | Set Theory

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Sign up to brilliant.org to receive a 20% discount with this link! https://brilliant.org/upandatom/ Cantor sets and the nature of infinity in set theory. Hi! I'm Jade. Subscribe to Up and Atom for new physics, math and computer science videos every two we

• 03:48

The Worlds First Photo of Quantum Entanglement Could Disprove Einsteins Theory

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Einstein dubbed the idea of quantum entanglement as "spooky action at a distance." Now for the first time ever, scientists have taken a picture of it. Subscribe to Seeker!http://bit.ly/subscribeseeker Watch more Elements! http://bit.ly/ElementsPlaylistTod

• 01:42

How lasers work (in theory)

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How does a laser really work? It's Bose - Einstein statistics! (photons are bosons) Check out Smarter Every Day's video showing lasers in real life: http://bit.ly/uBwhU2 Trying out a new feature: English Transcript! Let me know how it works Tweet it - htt

• 01:50

Einstein and The Special Theory of Relativity

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How Einstein (& others) discovered Special Relativity. Pi day (3.14) is Albert Einstein's Birthday! To celebrate, we'll explain 4 of his most groundbreaking papers from 1905, when he was just 26 years old. minutephysics is now on Google+ - http://bit.ly/q

• 09:20

Game Theory of Cheating Firms

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Pareto Optimality and more on Nash Equilibrium. Seeing how cheating duopolists parallels the prisoners dilemma More free lessons at: http://www.khanacademy.org/video?v=XTMbRDRaviM

• 09:14

POLITICAL THEORY - John Locke

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John Locke's greatness as a philosopher is based on his theories on childhood, his work on religious toleration and his concept of the rights of citizens. He helped to make us who we are. If you like our films take a look at our shop (we ship worldwide):

• 10:02

Where Did Eukaryotic Cells Come From? - A Journey Into Endosymbiotic Theory

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1.8 billion years ago, a cell ate another cell, but it didn't digest it, and without that happening, we would not exist. This week we explore the origins of eukaryotic cells and ask the question, "Are our cells more than ourselves?"SciShow's "Was the Apol

• 02:15

An Asteroid Didn’t Kill the Dinosaurs, Here’s a New Theory About What Did

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A new scientific model has discovered what actually happened to the earth after the asteroid impact that killed the dinosaurs. What Color Were Dinosaurs... Really? - https://youtu.be/zQPEiEluNgw Sign Up For The Seeker Newsletter Here - http://bit.ly/1UO1P

• 08:15

Time Dilation - Einstein's Theory Of Relativity Explained!

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There is absolutely no doubt that after Newton, Einstein is the most popular physicist in the history of science. Between the March and June of 1905, Einstein, then a mere patent clerk, published four papers that revolutionised modern physics forever. Alt

• 07:53

Stephen Hawking's Final Theory on Black Holes

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~ The black hole information paradox and Soft Hair ~ You can check out Google's Science Journal app at http://g.co/ScienceJournal What does Stephen Hawking's last paper on black holes with soft hair say about the black hole information paradox? Paper sour

• 03:57

This Radioactive Element Defies Quantum Theory: Meet Berkelium

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Scientists studying those mysterious two rows at the bottom of the periodic table are making breakthroughs, and it’s getting weird. Matter Makes Up Everything, So What Makes Up Matter? - https://youtu.be/58C-gtX6uCY Read More: A Rare Element From The Edge

• 01:53

Shocking new study disproves 130-year-old theory about dinosaur origins

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A study, recently published in Nature, is the first to seriously question dinosaur evolution. Where and when did the first dinosaurs appear on Earth? For the last 130 years, scientists thought dinosaurs evolved 230 million years ago on an ancient continen

• 06:52

Introduction To Partial Pressure | Gases And Kinetic Molecular Theory | Chemistry | Khan Academy

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Definition of partial pressure and Dalton's law of partial pressure. Example of calculating partial pressure of a gas in a mixture from the total pressure and partial pressure of the other gases in the mixture. Chemistry on Khan Academy: Did you know that

• 04:49

Andrea Ghezs Black Hole Research Confirms Einsteins Theory of Relativity | Short Film Showcase

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• 26:58

Graphing Lines by Plotting Points (TTP Video 29)

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How to Graph lines by making tables and plotting points. Focus will be on developing better techniques.

• 21:32

Building the Pyramids of Egypt ...a detailed step by step guide.

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If you have seen the animation which gave a brief overview of the Water shaft theory, then this is the more in depth walk through of the process. It contains illustrations and photographs to clarify the stages of how the Pyramids of Egypt were built withi

• 10:07

Boolean Logic & Logic Gates: Crash Course Computer Science #3

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Today, Carrie Anne is going to take a look at how those transistors we talked about last episode can be used to perform complex actions. With the just two states, on and off, the flow of electricity can be used to perform a number of logical operations, w

• 18:19

How to make an edge-coloured origami dodecahedron

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Check out Skillshare: http://skl.sh/standupmaths Using the code STANDUPMATHS you can get two months of the premium version for free (which is normally from \$8 USD per month). Go straight to the origami star lesson: http://skl.sh/origami-class Download my

• 01:59

Graphing Inequalities on a Number Line

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When graphing inequalities on a number line, the number line should have 0 in the center and negative numbers on the left side, with positive numbers on the right. Graph inequalities, such as X is greater than 2, with tips from a math teacher in this free

• 04:40

How A Few Scientists Transformed The Way We Think About Disease - Tien Nguyen

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View full lesson: http://ed.ted.com/lessons/how-a-few-scientists-transformed-the-way-we-think-about-disease-tien-nguyen For several centuries, people though diseases were caused by wandering clouds of poisonous vapor. We now know that this theory is prett

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• 07:52

Find The 10 Digit Number Classic Puzzle And Solution

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I'm thinking of a 10 digit number that uses the each digit 0 to 9 exactly once and where the number formed by the first n digits is divisible by n. What could my number be? The video explains how to find the answer using tests for divisibility. Blog post:

• 01:17

Which foods are ultraprocessed? You might be surprised.

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Many nutrition scientists blame overeating fats or carbohydrates for the world's obesity pandemic. But new research points to ultraprocessed foods such as chicken nuggets and instant soup mixes that dominate modern diets. These foods seem to distort signa

• 04:12

How Gravity Makes Things Fall

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Award-winning* demonstration of gravity, featuring the "Spacetime Stretcher," built mostly out of materials from my garage and the hardware store. Please support me on Patreon! Thank you! http://www.patreon.com/edwardcurrent More info: 1. As a falling obj

• 12:24

Rorschach&Freudians: Crash Course Psychology #21

306 views / 0 likes - added

You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as \$0 to keep up with everything we're doing. Also, if you can afford to pay a little every month, it really helps us to continue producing great content.

• 08:37

Collision That Formed The Moon

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Over five decades ago, Apollo astronauts brought back to Earth a wide variety of rocks from the Moon. Analysis of these rocks gave rise to a set of ideas describing the origin of the Moon called the Giant Impact Theory. In the last decade, scientists like

• 11:07

Relativity: how people get time dilation wrong

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Einstein’s special theory of relativity is notorious for being easy to misuse, with the result that sometimes result in claims of paradoxes. When one digs more carefully into the theory, you find that no such paradoxes actually exist. In this video, Fermi

• 09:50

The Growth of Knowledge: Crash Course Psychology #18

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You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as \$0 to keep up with everything we're doing. Also, if you can afford to pay a little every month, it really helps us to continue producing great content.

• 08:13

Nature of Time and Simultaneity

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Nature of time and simultaneity according to Albert Einstein's Theory of Relativity.

• 10:40

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A more detailed description of the Twin Paradox in Albert Einstein's General Theory of Relativity.

• 35:37

Quantum Entanglement, Bell Inequality, EPR paradox

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Quantum Entanglement, EPR paradox, Bell Inequality, and the implication for Einstein's Theory of Relativity.

• 04:00

Trying to go faster than the speed of light

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Discusses why we can't go faster than the speed of light by adding relativistic velocities in Albert Einstein's Theory of Relativity.

• 03:36

Was Einstein Wrong About The Speed Of Light?

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The speed of light is the cosmic speed limit and it can't been changed. Or can it? Here's What Parallel Universes Might Look Like (360 Video) - https://youtu.be/1xx3QjP089o Sign Up For The Seeker Newsletter Here - http://bit.ly/1UO1PxI Read More: Theory t

• 07:41

Is This What Quantum Mechanics Looks Like?

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Silicone oil droplets provide a physical realization of pilot wave theories. Check out Smarter Every Day: http://bit.ly/VeSmarter Support Veritasium on Patreon: http://bit.ly/VePatreon Huge thanks to: Dr. Stephane Perrard, Dr Matthieu Labousse, Pr Emmanue

• 09:32

Is Our Entire Universe Held Together By One Mysterious Number?

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1/137 is a universal constant that determines how stars burn, how chemical reactions happen, and if it were off by just a few percentage points—all of this might not even be here. But what happens if it shifts? Watch more Focal Point! | https://bit.ly/2ZJ

• 02:48

Picture Graphs | Measurement And Data | Early Math | Khan Academy

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• 01:55

133 views / 0 likes - added

had this idea yesterday,! sorry if it's a lil much, i have a script written for another more general overview about chords too! also i'm not really a music theory expert, so forgive any errors or poor explanations haha

• 03:50

Where Did the Moon Come From?

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Do you love to look at a big, beautiful full moon in the night sky? So do Jessi and Squeaks! But how did the moon get up there? And what is it made of? ---------- Hi there! We at SciShow want to learn more about you and your opinions! If you have time, pl

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• 03:14

The Great Acceleration

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Thanks to the University of Minnesota for sponsoring this video! http://twin-cities.umn.edu/Were in the middle of a rapid, unprecedented, and world-changing increase in the intensity and scale of human activity on this planet.Thanks also to our Patreon pa

• 02:51

Einstein's Biggest Blunder

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Einstein's theory of general relativity was not always the concise, elegant equation we know today. Einstein needed a "fudge factor" to conform his theory to accepted conventions of the day. It wasn't until Hubble made a grand discovery that Einstein's eq

• 03:21

Do Five Dimensional Black Holes Prove Einstein Wrong?

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Scientists have recently modeled a strange black hole in a 5D universe. What does this mean to Einstein's Theory of Relativity? Sign Up For The TestTube Newsletter Here ►►►► http://bit.ly/1myXbFG NASA Accidentally Discovers Giant Black Holes►►►►http://bit

• 26:02

Physics: Laws of Motion - Newton and beyond

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Easy to understand 3D animation explaining Physics. Includes Newton’s Laws of Motion, angular precession, coriolis effect, Bernoulli's principle, and Albert Einstein’s General Theory of Relativity.

• 09:14

How Einstein's Eclipse Changed the Course of Physics Forever

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Two intrepid astronomers embarked on a scientific quest to photograph a solar eclipse, and in turn launched Einstein into an international celebrity. Subscribe to Seeker! http://www.youtube.com/subscription_c... Watch more Focal Point | https://bit.ly/2ST

• 04:55

Einstein's Relativity

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Brian Cox discusses Einstein's theory of relativity and how it is used in GPS. Full lecture can be viewed here: http://www.youtube.com/watch?v=enSXh4YY9Ws

• 10:41

Aggression V. Altruism: Crash Course Psychology #40

299 views / 0 likes - added

You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as \$0 to keep up with everything we're doing. Also, if you can afford to pay a little every month, it really helps us to continue producing great content.

• 09:42

The History of Atomic Chemistry: Crash Course Chemistry #37

321 views / 0 likes - added

You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as \$0 to keep up with everything we're doing. Also, if you can afford to pay a little every month, it really helps us to continue producing great content.

• 04:37

Why knights fought snails in medieval art

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Look in the margins of medieval books and you'll find an unusual theme: knights vs. snails. Vox's Phil Edwards investigated why in this episode of Vox Almanac... Lillian Randall's paper is here: https://www.scribd.com/document/263159779/The-Snail-in-Gothi

• 03:27

White Holes (if they exist) could explain some of the weirdest aspects of our universe

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Thanks for watching. Sources: Astronomers Capture First Image of a Black Hole https://www.almaobservatory.org/en/press-release/astronomers-capture-first-image-of-a-black-hole/ LIGO Detection Papers https://www.ligo.caltech.edu/page/detection-companion-pap

• 09:44

Arguments Against Personal Identity: Crash Course Philosophy #20

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How can Daenerys Targaryen help us understand personal identity? Find out as Hank continues our exploration of personal identity, learning about Hume’s bundle theory and Parfit’s theory of survival through psychological connectedness. Get your own Crash C

• 07:49

LM part of the IS-LM model

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How the theory of liquidity preference drives demand for money and the LM (liquidity preference-money supply) curve More free lessons at: http://www.khanacademy.org/video?v=yro2jLBfyDQ

• 10:29

Scientists Are About to Prove a Mirror Universe Exists

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The theory of multiple or parallel universes is one that blurs the line between scientific reality and science fiction. Its a pretty huge topic of debate in the scientific community, with big names on both sides. If you believe that multiple universes exi

• 05:57

How To Split A Cake Fairly Using Math

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How can 2 people split up a cake, knowing that each person wants to get a larger piece than the other? What about 3 people, or even N people? This is an example of a fair division problem from game theory. There are many cake-cutting algorithms to produce

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• 01:31

The ‘alien megastructure’ star is acting weird again

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Tabby's Star — officially known as KIC 8462852 — is acting weird, again. Recent reports indicate it has started to dim in brightness. That's what Tabby's star does — it dims. Astronomers were ready for the event — they have pointed telescopes from around

• 29:27

Chemistry and Our Universe: How it All Works | The Great Courses

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Chemistry if the science of how everything interacts. In this lecture examine how light interacts with matter in crucial ways. Follow the debate over whether light is a wave or particle, staring in antiquity. See how the wave theory to triumph in the 19th

• 10:32

Why Flying is So Expensive

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Flying is expensive, really expensive, but only kinda, and it's only partially the airlines' fault. Big thank you to Real Engineering for the collab in this video. Make sure to check him out at https://m.youtube.com/realengineering Please consider sharing

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• 12:35

Why The Big Bang Definitely Happened | Space Time | PBS Digital Studios

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How physics lets us rewind time to the beginning of the universe. Get your own Space Time t-shirt at http://bit.ly/1QlzoBi Tweet at us! @pbsspacetime Facebook: facebook.com/pbsspacetime Email us! pbsspacetime [at] gmail [dot] com Comment on Reddit: http:/

• 03:15

What Happens When You Don't Brush Your Teeth? | Earth Lab

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Bang Goes The Theory looks into the consequences of not brushing your teeth for five days - is it just aesthetic or are there more serious consequences? Subscribe: http://bit.ly/SubscribeToEarthLab All the best Earth Lab videos http://bit.ly/EarthLabOrigi

• 04:53

Can You Solve The Friendship Riddle?

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In a group of 6 people, you might find that some people are friends on Facebook, or you might find out that no one is friends on Facebook. Show that there is always a group of 3 people in which either: (a) all 3 people are mutual friends or (b) the 3 peop

• 05:54

Albert Einstein (stock footage / archival footage)

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Albert Einstein talks about theory of relativity, graphics show equation E = MC squared (E=MC2); explains the theory of relativity. Einstein smoking pipe, reading. Looking at formula. Einstein meets with Professor Solard. Letter being typed in typewriter.

• 18:55

4.669 - Numberphile

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Binge on learning at The Great Courses Plus: http://ow.ly/Z5yR307LfxY The Feigenbaum Constant and Logistic Map - featuring Ben Sparks. Ben Sparks: https://twitter.com/SparksMaths Random numbers: https://youtu.be/SxP30euw3-0 Mandelbrot Set: https://youtu.b

• 07:39

Why Are Soap Bubbles So Colorful?

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Why are soap bubbles rainbow colored? Iridescence explained both by wave theory and QED (quantum electrodynamics). Hi! I'm Jade. I'm an Aussie with a Bachelor's degree in Applied Physics. After three years and over 100 lab sessions, I realized I'm terribl

• 07:20

Black Holes Explained

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Black holes are one of the Universe's most tantalizing mysteries. These massive, reticent creatures have provided us monumental insights about how the universe might have begun and how it might eventually end. Check out our new video explaining what they

• 16:12

River Crossings (and Alcuin Numbers) - Numberphile

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Discussing vertex covers and Alcuin numbers for graphs - and a famous old puzzle. Filmed at MSRI with Dr Annie Raymond. More links & stuff in full description below ↓↓↓ Annie Raymond: https://www.msri.org/people/38568 The Alcuin Number of a Graph: https:/

• 11:44

Evolution: It's a Thing - Crash Course Biology #20

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Hank gets real with us in a discussion of evolution - it's a thing, not a debate. Gene distribution changes over time, across successive generations, to give rise to diversity at every level of biological organization. Crash Course Biology is now availabl

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• 07:13

How big is infinity? - Dennis Wildfogel

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View full lesson: http://ed.ted.com/lessons/how-big-is-infinity Using the fundamentals of set theory, explore the mind-bending concept of the "infinity of infinities" -- and how it led mathematicians to conclude that math itself contains unanswerable ques

• 02:14

Dancing animal videos Scientists study the evolution of rhythm

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The sea lion studies are especially interesting. For years, scientists have thought that animals' "rhythmic entrainment" (the ability to synchronize with an external beat) was necessarily associated with vocal capacities to imitate sound. Sea lions are qu

• 08:27

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First all it's not really a paradox, that's just the name, but here's a revisit to the popular breaking board demonstration on air pressure. The common explanation has touted that sheet of newspaper is applying 8,000 to 15,000 pounds of force toehold a bo

• 11:44

Intro to Algorithms: Crash Course Computer Science #13

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Algorithms are the sets of steps necessary to complete computation - they are at the heart of what our devices actually do. And this isn’t a new concept. Since the development of math itself algorithms have been needed to help us complete tasks more effic

• 09:32

The Higgs Mechanism Explained | Space Time | PBS Digital Studios

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What is the Higgs field and why is it a fundamental part of our universe? Tweet at us! @pbsspacetime Facebook: facebook.com/pbsspacetime Email us! pbsspacetime [at] gmail [dot] com Comment on Reddit: http://www.reddit.com/r/pbsspacetime Quantum Field Theo

• 01:18

Can You Make 4 Triangles From 6 Matches?

453 views / 0 likes - added

Can you use 6 matches to make 4 triangles of equal size and equal shape? This is harder than it sounds! Give it a try before watching the video for a solution. If you like my videos, you can support me at Patreon: http://www.patreon.com/mindyourdecisions

• 04:22

Impossible Algebra Problem

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This problem is making the rounds. Can you place numbers in the four boxes so all the equations are true? Blog post (text/image explanation): http://wp.me/p6aMk-4up If you like my videos, you can support me at Patreon: http://www.patreon.com/mindyourdecis

• 03:25 Popular

Can You Solve This? AA + BB + CC = ABC

747 views / 0 likes - added

If AA + BB + CC = ABC, what are the values of A, B, and C? All the digits are distinct and positive. Watch the video for a solution. Blog (text explanation): http://wp.me/p6aMk-4Cm If you like my videos, you can support me at Patreon: http://www.patreon.c

• 05:20

Printing Lucy

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Researchers believe they've discovered how Lucy, a 3.2 million year old human relative, died. To convince others of their theory, the researchers released 3D scans of Lucy's bones. In this Nature Video we 3D print Lucy's bones to see for ourselves. Read t

• 04:42

How Warren Buffett Tried To Trick Bill Gates In A Dice Game

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Warren Buffett once challenged Bill Gates to a dice game similar to this one. How would you play the game? Blog post (text explanation) http://wp.me/p6aMk-4ro Source The dice numbers and the story are described at Microsoft Research's website for non-tran

• 11:49

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Einstein’s theory of special relativity is one of the fascinating scientific advances of the 20th century. Fermilab’s Dr. Don Lincoln has decided to make a series of videos describing this amazing idea. In this video, he lays out what relativity is all ab

• 04:00

PLATO ON: The Forms

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Plato’s theory of the forms is at the centre of his philosophy and teaches us the virtues of thinking about the ideal version of things. If you like our films take a look at our shop (we ship worldwide): http://www.theschooloflife.com/shop/all/ Brought to

• 17:35

Bell's Theorem: The Quantum Venn Diagram Paradox

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Featuring 3Blue1Brown Watch the 2nd video on 3Blue1Brown here: https://www.youtube.com/watch?v=MzRCDLre1b4 Support MinutePhysics on Patreon! http://www.patreon.com/minutephysics Link to Patreon Supporters: http://www.minutephysics.com/supporters/ This vid

• 01:23

Hammer vs Feather - Physics on the Moon

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Courtesy: NASA - Galileo and Apollo 15 At the end of the last Apollo 15 moon walk, Commander David Scott (pictured above) performed a live demonstration for the television cameras. He held out a geologic hammer and a feather and dropped them at the same t

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• 10:50

The most feared song in jazz, explained

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Making sense of John Coltrane's "Giant Steps." Follow Vox Earworm on Facebook for more: http://www.facebook.com/VoxEarworm And be sure to check out Earworm's complete first season here: http://bit.ly/2QCwhMH John Coltrane, one of jazz history’s most

• 04:27

Conservation's Latest Problem? Not Enough Hunters

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No matter how you feel about hunting, it provides a lot of funding for state wildlife agencies. Now, fewer Americans are hunting, and that system is breaking down. The United States needs to find a new way to fund the preservation of America's wilderness.

• 01:57

548 views / 1 likes - added

Pick a 2 digit number. Got it? Now and add up the digits. Subtract that from your original number. Look up the resulting number in the table. Can I figure out the symbol you are looking at? This video predicts your symbol and explains why this math trick

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• 06:24

The Seemingly Impossible Escape Logic Puzzle

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An evil logician takes Alice and Bob captive. They have a chance to escape if they can deduce the total number of trees in the prison. Can they figure it out? Source of puzzle wu: riddles forum https://www.ocf.berkeley.edu/~wwu/cgi-bin/yabb/YaBB.cgi?board

• 06:31

Epic Space Rescues Ft. BrainCraft

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Follow me over to BrainCraft and subscribe! https://www.youtube.com/watch?v=Y19fwDEfQ8E In The Martian, astronaut Mark Watney is stranded alone on Mars and must be rescued. It is an exciting tale of what could happen once humans start traveling to the red

• 03:00

Multiply Numbers By Drawing Lines

290 views / 0 likes - added

Gow to multiply numbers by drawing lines. Get the Multiply By Lines Book! https://www.amazon.com/gp/product/1500866148/ If you like my videos, you can support me at Patreon: http://www.patreon.com/mindyourdecisions Connect on social media. I update each s

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• 07:10

TOUGH Interview Question - Ways To Give 11 Coins To 3 People

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How many ways can you divide 11 coins to 3 people? How many ways are there if each person has to get at least 1 coin? This puzzle is an example of a technical interview question. The video demonstrates the solution, which indicates the number of non-negat

• 04:43

Immune System - Fighting Infection by Clonal Selection

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'Fighting Infection by Clonal Selection' was created to commemorate the 50th anniversary of Burnet's Clonal Selection Theory. The animation shows how clonal selection works during a bacterial infection of the throat. Frank Macfarlane Burnet was awarded th

• 54:42

Quantum Biology: An Introduction

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What is quantum biology? Philip Ball explains how strange quantum effects take place in the messy world of biology, and how these are behind familiar biological phenomena such as smell, enzymes and bird's migration. Subscribe for regular science videos: h

• 16:13

The Game You Win By Losing (Parrondo's Paradox)

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Watch my collab with Donut Media: https://youtu.be/1RNc-2hpHP8Thanks to Donut Media for supporting Vsauce2 and having me on their channel. Go check them out and support them. They're great!While working on the interplay between thermodynamics and informat

• 04:52

Can You Solve The Two Rope Puzzle?

295 views / 0 likes - added

You have two ropes and a lighter. Each rope burns in 60 minutes, but the ropes do not burn at a constant rate. How can you measure 45 minutes by burning the ropes? Some of you might have heard this problem before. If so, try this variation: how can you me

• 06:24

Can You Solve The Chameleon Riddle?

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A museum has 13 blue, 15 red, and 17 green chameleons. Whenever two chameleons of different colors meet, they both change into the color of the other chameleon (if blue and red met, for example, they would both turn green). As the chameleons mingle, is it

• 04:09 Popular

Vacation Or Conservation (Of Mass): Crash Course Kids #23.1

1,623 views / 0 likes - added

So when water evaporates, what happens? Where does that water go? Does just vanish? Is it no more? Can matter every just go away? Well, the answer is no, it can't. But it can LOOK like it does. In this episode of Crash Course Kids, Sabrina shows us how Co

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• 03:58

What If The Neanderthals Had Not Gone Extinct?

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Neanderthal DNA is 99.7% identical to our own, and researchers claim that some humans might be carrying as much as 2% of the Neanderthal genome. Making things even weirder is that scientists recently recovered a nearly complete DNA sequence from a 50,000-

• 10:20

SURPRISING Coin Flipping Probability - Flips To HH Versus HT

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What is the expected number of coin flips until you get two heads in a row (HH)? What is the expected number of coin flips until you get a heads followed by a tails (HT)? The video presents the solution and an intuitive explanation for this probability ri

• 02:31

Why Do We Yawn?

443 views / 1 likes - added

What makes yawning so contagious? Watch the 'Yawn-O-Meter': http://bit.ly/1qwFDrx SUBSCRIBE: http://bit.ly/10kWnZ7 Instagram and Twitter: @whalewatchmeplz and @mitchellmoffit Clickable: http://bit.ly/16F1jeC and http://bit.ly/15J7ube Facebook: http://on.f

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• 05:00

H2O-NO! - Fresh Water Problems: Crash Course Kids #33.1

523 views / 2 likes - added

What happens to a single ecosystem when the amount of freshwater available in it changes? Not really much good. In this episode of Crash Course Kids, Sabrina talks about ecosystems and how one small change can lead to a cascade effect in the entire ecosys

• 14:15

Russell's Paradox - A Ripple in the Foundations of Mathematics

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Bertrand Russell's set theory paradox on the foundations of mathematics, axiomatic set theory and the laws of logic. A celebration of Gottlob Frege. Thank you to Professor Joel David Hamkins for your help with this video. Hi! I'm Jade. Subscribe to Up and

• 04:39

Big Changes In The Big Forest: Crash Course Kids #38.2

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What do beavers, termites, and prairie dogs have in common? They all change their environments! Last time we talked about how humans change their environments, but humans are animals and all animals change their environments just by living in them. Watch

• 05:03

The Existence of White Holes May Settle One of Physics Biggest Debates

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Chances are you are familiar with black holes, we at Seeker love to discuss black holesbut what about white holes? Its time we talk about the black holes hypothetical opposite. Subscribe to Seeker! http://bit.ly/subscribeseeker Watch more Elements! http:/

• 12:45

Matter Makes Up Everything, So What Makes Up Matter? (Part 1 of 3)

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Practically everything around us is matter, but how did the first scientists figure that out? How did we define matter? Tune in next Thursday for Part 2! Read More: Discovery of the Electron http://www.pbs.org/transistor/science/events/electron.html “Scie

• 1:01:45

Information, Evolution, And Intelligent Design - With Daniel Dennett

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Daniel Dennett explores the first steps towards a unified theory of information, through common threads in the convergence of evolution, learning, and engineering. Subscribe for regular science talks: http://bit.ly/RiSubscRibe The concept of information i

• 04:13

Adults Stumped By Geometry Problems For 10 Year Olds. Can You Solve Them?

358 views / 0 likes - added

These homework problems were given to 10 year old children (Year 5) in England (Glossop, Derbyshire) and they were posted to Facebook when some adults found them to be difficult. One person claimed the problems were impossible to solve. Can you figure the

• 02:57

406 views / 1 likes - added

This problem has over 2 million comments on Facebook and is getting coverage in mainstream media and blogs. Can you figure out this Facebook fruit algebra puzzle involving apples, bananas, and coconuts? The video presents what many people consider to be t

• 03:53

(LEGO) Block Party: Crash Course Kids #23.2

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Playing with LEGOS is fun. But, they can also teach us something about matter. In this episode of Crash Course Kids, Sabrina chats about chemical reactions and the Conservation of Matter. Watch More Crash Course Kids: https://www.youtube.com/user/crashcou

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• 02:58

What Is Sea Level, Anyway?

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In Calipatria, California, the town is below sea level -- but their flag pole isn't. But what does "sea level" mean? Is it just theory, or is there more behind it? I'm at http://tomscott.com on Twitter at http://twitter.com/tomscott on Facebook at http://

• 08:27

Can You Solve The 3 Cards Riddle?

299 views / 0 likes - added

There are 3 cards in this problem. One card is blue on both sides, another is red on both sides, and the last is red on one side and blue on the other. The cards are put in a bag and I pick one at random. Without looking at the colors on the card, I place

• 03:31

How Logical Are You? The Irrationality Illusion Tricks Most

425 views / 0 likes - added

This video relates a cognitive bias ("irrational" decision) to an optical illusion (picture at 1:45). For more, check out my new book, "The Irrationality Illusion: How to Make Smart Decisions And Overcome Bias" http://amzn.to/1o3FaAg Blog post (text and i

• 04:07

Why do competitors open their stores next to one another? - Jac de Haan

198 views / 0 likes - added

View full lesson on ed.ted.com - http://ed.ted.com/lessons/why-do-competitors-open-their-stores-next-to-one-another-jac-de-haan Why are all the gas stations, cafes and restaurants in one crowded spot? As two competitive cousins vie for ice-cream-selling d

• 06:04

Einstein's Biggest Blunder, Explained

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Thanks to Brilliant for supporting MinutePhysics. Get 20% off a premium subscription at https://brilliant.org/MinutePhysics/This video is about how Albert Einstein made a mistake when applying the Field Equations of General Relativity to cosmology (in par

• 12:53

The Many Worlds of the Quantum Multiverse | Space Time | PBS Digital Studios

237 views / 1 likes - added

Is our universe a definitive single reality or is it merely one within an infinitely branching multiverse? Be sure to check out Physics Girl’s Dianna Cowern for more awesome science https://www.youtube.com/c/physicsgirl Get your own Space Time t­shirt at

• 02:21

How Dinosaurs Went Extinct!

684 views / 0 likes - added

Meteors came hurtling to Earth and stopped life as they knew it for the dinosaurs. Complete and instantaneous extinction is no longer the theory. What did the extinction look like? See how a T-Rex survives impact as some animals did, only to succumb to th

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• 05:38

Ideasthesia: How Do Ideas Feel? - Danko Nikolić

341 views / 0 likes - added

View full lesson: http://ed.ted.com/lessons/ideasthesia-how-do-ideas-feel-danko-nikolic The traditional model of our mental function is that first our senses provide data to our brain, which then translates those senses into the appropriate mental phenome

• 04:56 Popular

Water Water Everywhere: Crash Course Kids #14.2

736 views / 1 likes - added

So you know about Freshwater and Saltwater now and you know that there's not that much Freshwater for us (and other life) to get to. So how do different animals deal with different amounts of water where they live? In this episode of Crash Course Kids, Sa

• 04:57

Big Changes In The Big Apple: Crash Course Kids #38.1

375 views / 0 likes - added

Did you know that all living things change their environments? It's true. Beavers, deer, worms, and humans all change their environments. It just so happens that humans change our environments in big, obvious ways. In this episode, Sabrina chats about how

• 02:45

The Day After Tomorrow Is Yesterday Riddle. Can You Solve It?

307 views / 0 likes - added

This puzzle is popular on Facebook and many other sites. "When the day after tomorrow is yesterday, then today will be as far from Wednesday as today was from Wednesday when the day before yesterday was tomorrow. What day is today?" Can you solve this tri

• 02:23

This SAT Math Question Has A Mistake

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This question appeared on the October 1980 SAT exam. Like all questions, it was supposed to have exactly one correct answer. However the test-makers made a mistake. Can you figure out what they did wrong? Blog post (text explanation): http://wp.me/p6aMk-4

• 03:33

Can You Solve This Intelligence Test? Viral Facebook Puzzle

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If 6 + 4 = 210, and 9 + 2 = 711, what is the rule to combine numbers? This "intelligence test" has been shared more than 3 million times on Facebook. On Twitter people claim solving it means you have an IQ of more than 150 (genius level). In this video I

• 06:57

When Is Christmas? Mentally Convert Date To Day Of The Week

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January 1, 2016 is a Friday. When will Christmas be in 2016? What about Christmas in 2055? You can do this in your head! Blog post (text explanation): http://wp.me/p6aMk-4qQ Doomsday Rule (previous video): https://www.youtube.com/watch?v=UsStBxY9STw Calcu

• 04:16 Popular

The Basics Of Freshwater: Crash Course Kids 14.1

869 views / 1 likes - added

We have a lot of water on Earth, but we also can't actually drink much of it... or use it for farming. That's because most of the water on Earth is saltwater. We humans, like a lot of living things, need freshwater to survive. In this episode of Crash Cou

• 04:52

Do Black Holes Ever Die?

469 views / 6 likes - added

Do black holes actually evaporate? Find out more as we dive deep into Hawking Radiation! Inside The World's Largest Particle Accelerator - http://bit.ly/2cmBmH1 Sign Up For The Seeker Newsletter Here - http://bit.ly/1UO1PxI Read More: Hawking Radiation ht

• 03:10

Rapid Evolution Is Real…These Species Changed in Front of Our Eyes

242 views / 0 likes - added

Evolution doesn’t have to take a hundred millennia. Some species can biologically adapt to new environments in a few short years, here’s how. Seeker is now on Prime Video! Watch here: https://www.amazon.com/v/seeker Read More: What is Darwin's Theory of E

• 59:52

The Extraordinary Theorems of John Nash - with Cédric Villani

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Fields medal winner Cédric Villani takes us through the very special world of mathematical creation of John Nash, who founded several new chapters of game theory and geometric analysis in just a few revolutionary contributions that seemed to come from now

• 05:09

Can You Solve The Snake Eyes Probability Riddle?

355 views / 0 likes - added

You close your eyes and roll a pair of dice. The casino dealer announces that at least one of the rolls is showing a 1.What is the probability that both dice are showing a 1? Watch the video for the solution. (Snake eyes is a term for rolling a pair of 1s

• 04:03

Could Life On Earth Have Come From A Comet?

362 views / 0 likes - added

What if alien DNA led to human existence? This amino acid recently found in comets gives us insight on our potential alien-relatives. Are We Sabotaging Our Search For Life On Mars? - http://bit.ly/29MAiYY Sign Up For The Seeker Newsletter Here - http://bi

• 00:46

Evidence for relativity effects in stars orbiting supermassive black hole

231 views / 0 likes - added

This artist's impression shows the orbits of three of the closest known stars to the supermassive black hole at the center of the Milky Way (marked with a red cross). Analysis of data from ESO’s Very Large Telescope and other telescopes hint that the orbi

• 08:10

Why Do You Love Your Family?

189 views / 0 likes - added

You can learn more about your personal DNA story by going to https://23andMe.com/okay Don’t miss our next video! SUBSCRIBE! ►► http://bit.ly/iotbs_sub ↓↓↓ More info and sources below ↓↓↓ Why do we love people we’re related to? Compared to strangers, why d

• 05:55

"Impossible" Logic Puzzle - How Many Liars Are At The Party?

339 views / 0 likes - added

A party has 100 people who are either liars are truth tellers. Liars always lie and truth tellers always say the truth. After the party you ask each person, "How many truth tellers did you shake hands with?" Each person gives a different answer from 0 to

• 07:13

New Subatomic Particles Are Shifting the Standard Model of Physics

96 views / 0 likes - added

The Large Hadron Collider just discovered a new pentaquark, but how does it fit in our current understanding of the Standard Model?Could Everything We Know About String Theory Be Wrong? - https://youtu.be/gVcwcaI_viQRead More: LHCb experiment discovers a

• 07:49

Can You Solve The Viral 9 = 72 Puzzle? The Correct Answer Explained

436 views / 0 likes - added

This problem has been shared millions of times on Twitter/Facebook with the claim "99% fail" to solve it and that only a genius could find the correct answer. If 9 = 72, 8 = 56, 7 = 42, 6 = 30, 5 = 20, then 3 = ? In this video I explain what many people b

• 05:39

Can You Solve A 5th Grade Problem From China? Find The Area Of ABCD

335 views / 0 likes - added

Thanks to Eric from Miami for suggesting this problem and sending a solution! The diagram shows a quadrilateral ABCD with the values for some angles and the length of AB. Can you figure out the area of ABCD? Subscribe: https://www.youtube.com/user/MindYou

• 03:22

NASA's Solar Dynamics Observatory: Year 7 Ultra HD (4k)

222 views / 1 likes - added

The Solar Dynamics Observatory (SDO) has now captured nearly seven years worth of ultra-high resolution solar footage. This time lapse shows that full run from two of SDO's instruments. The large orange sun is visible light captured by HMI. The smaller go

• 07:12

Einstein's Golden Secret! (Psst! Special relativity gives gold its color)

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Come discover how Einstein's Special Theory of Relativity gives gold it's beautiful yellow shine. Hi! I'm Jade. Subscribe to Up and Atom for new physics, math and computer science videos every two weeks! *SUBSCRIBE TO UP AND ATOM* https://www.youtube.com/

• 15:15

Moving Faster Than The Speed Of Light? Special Relativity Velocity Addition Formula

303 views / 0 likes - added

If train A is moving towards train B, and each train moves at 75% the speed of light (relative to the ground), will an observer on train A think that train B is moving at 150% the speed of light? But nothing moves faster than the speed of light, so what i

• 06:01 Popular

Can You Solve The Viral 1 + 4 = 5 Puzzle? The Correct Answer Explained

2,588 views / 0 likes - added

This problem was shared on Facebook with the claim that only one in a thousand could figure it out. It went viral and generated over 3 million comments. Here is the problem. If 1 + 4 = 5, 2 + 5 = 12, 3 + 6 = 21, what is 8 + 11 = ? This video presents what

• 04:35

Earths Magnetic North Pole Is Shifting South So What Now?

51 views / 0 likes - added

The Earth's magnetic poles are constantly shifting, and scientists believe they've figured out why. Subscribe to Seeker!http://bit.ly/subscribeseeker Watch more Elements! http://bit.ly/ElementsPlaylist The North and South poles are often thought of as the

• 03:21

Can You Solve A Puzzle That Fooled Richard Feynman?

250 views / 0 likes - added

What is the radius of the circle, in simplest terms involving a, b, and c? I read that even the great mind Richard Feynman made a mistake. Watch the video to learn the common mistake and what the correct answer is. Source Feynman story http://web.media.mi

• 03:28

Flower Math Problem - Adults Stumped By Question For Kids In China

417 views / 2 likes - added

This problem is said to come from a test given to a Chinese kindergarten class (5 year olds). It was posted online and caused a lot of debate as adults were stumped about the correct answer, some saying it is impossible. Can you figure it out? This video

• 04:36

The Origin Of Countless Conspiracy Theories - PatrickJMT

222 views / 0 likes - added

View full lesson: http://ed.ted.com/lessons/the-origin-of-countless-conspiracy-theories-patrickjmt Check out PatrickJMT's YouTube channel here: https://www.youtube.com/user/patrickJMT Why can we find geometric shapes in the night sky? How can we know that

• 04:43

Richard Feynman Fire

45 views / 0 likes - added

Richard Phillips Feynman was an American physicist known for the path integral formulation of quantum mechanics, the theory of quantum electrodynamics and the physics of the super fluidity of super cooled liquid helium, as well as work in particle physics

• 07:33

Richard Feynman Magnets

295 views / 0 likes - added

Richard Phillips Feynman was an American physicist known for the path integral formulation of quantum mechanics, the theory of quantum electrodynamics and the physics of the super fluidity of super cooled liquid helium, as well as work in particle physics

• 01:49

This Matchstick Puzzle Is

290 views / 1 likes - added

This classic matchstick/toothpick puzzle is making the rounds because it is supposedly "extremely hard" for adults. Can you make 3 squares by moving 3 matchsticks? You cannot break any of the sticks, the resulting squares must be of equal size, and each t

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• 03:17

Can YOU Solve It? This Question Stumped 75% Of PhD Economists

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Introductory economics courses cover the concept of an opportunity cost. Can you figure out the opportunity cost for the problem in the video? This video presents a question that surprisingly more than 75% of PhD economists did not answer correctly. Paper

• 05:48

What Is The Area? "You Should Be Able To Solve This"

145 views / 0 likes - added

Thanks to Reio in Romania for emailing me this fun problem! What is the area? This puzzle was shared with the tagline "you should be able to solve this." Solution to 5th grade Chinese challenge problem https://youtu.be/OuJQaxZvlYs My blog post for this vi

• 03:24

Why Do So Many Price Tags End In .99?

365 views / 0 likes - added

It’s very common to see the number 9 at the right end of a price tag. Why is this? Lauren explains the psychology of prices and nines in this episode of BrainStuff. Learn more at HowStuffWorks.com. Share on Facebook: Share on Twitter: Subscribe: htt

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• 07:25

Can You Solve The Race To December 31 Riddle?

294 views / 0 likes - added

Here's a fun game you can play with another person. The game starts on January 1. Each of two players takes turns calling out another date. The new date has to be a later date in the year with either the same month OR the same day (from January 1, a playe

• 03:17

Is A Super-Earth Planet Hidden At the Edge of Our Solar System?

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#HowTheUniverseWorks | Tuesdays at 10/9c on Science Full Episodes Streaming FREE on Science GO: https://www.sciencechannelgo.com/how-the-universe-works/ Planet Nine sits on the edge of our solar system, roughly 100 billion miles from our Sun. Until we see

• 04:33

The Most Groundbreaking Scientist You've Never Heard Of - Addison Anderson

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View full lesson: http://ed.ted.com/lessons/the-most-groundbreaking-scientist-you-ve-never-heard-of-addison-anderson Seventeenth-century Danish geologist Nicolas Steno earned his chops at a young age, studying cadavers and drawing anatomic connections bet

• 13:40

BEST Way To Play Memory (Card Game) - WIN Using Math

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The card game of memory (aka concentration) is a children's game to test visual recall. Strategically you can figure out the best move by doing probability calculations. This video explains the best possible way to play the game mathematically. You can le

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• 16:30

The Stratford Heist - Staging a false play in front of Shakespeare's gravestone to find a treasure.

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A man staged a false play in front of Shakespeare's gravestone in order to scan it with penetrating RADAR to confirm his suspicion it had a cavity with hidden works, a theory he put together from cryptic clues left by the altar. His RADAR confirmed the ca

• 11:57

The Wallis Formula For π

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Start with the pair of fractions (2/1)(2/3). Now increment each number by 2 to get the pair of fractions (4/3)(4/5). Repeat this to get the next pair, and repeat this infinitely many times. If you then multiply all the fractions, you get a marvelous value

• 05:47

Why Is The Universe Flat?

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Cosmic inflation is a theory that was proposed in the 1980s by cosmologist Alan Guth to answer some of the most fundamental questions of the origins of our universe. It also solved the Horizon Problem and the Flatness Problem. Subscribe - http://www.youtu

• 09:11

Can You Solve The Rectangle Ratio Puzzle? The Surprising Answer

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Start with a unit square (a rectangle with both sides equal to 1, call it R1). Attach a rectangle of area 1 to its right side, then attach a rectangle of area 1 to its top. The border of this new shape is another rectangle, call it R2. We can repeat the p

• 08:19

Can You Solve The Spies Sharing Secrets Puzzle?

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After a successful mission, each of N spies obtains a unique secret. By protocol, the spies share secrets by a series of phone calls between 2 spies at a time. During a call, a spy can share all the secrets the knows, including secrets learned from previo

• 05:57

Can You Solve This 6th Grade Geometry Problem From Singapore? The Area Of A "Claw"

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This problem was given to Primary 6 (age 11-12) students in Singapore. What is the area of the shaded region in the video, which consists of the region bounded by 4 quarter circles in a 3x3 grid of squares, and each square has a side length of 4? The shad

• 06:24

Can You Solve The Missing Sock Puzzle?

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A statistician keeps a simple wardrobe. He only purchases pairs of black socks and white socks, and he keeps all of the socks in a pile in the drawer. Recently one of the socks was lost in the laundry. The socks have a mathematical property. If you select

• 03:51

Can You Solve This MIT Admissions Question? Geometry Problem, 1869

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The Massachusetts Institute of Technology (MIT) is one of the top ranked universities in the world. This question appeared on its admissions exam nearly 150 years ago. "The perpendicular dropped from the vertex of the right angle upon the hypotenuse divid

• 03:16

Can You Solve This 8th Grade Geometry Problem? 75% Got The Wrong Answer

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What is angle A in the star-shaped figure? This problem appeared on the 1999 AMC 8 test (intended for 8th grade students in the US). Approximately 75% of test-takers did not mark the correct response. Can you figure it out? Watch the video for a solution.

• 08:05

Can You Solve The Hardest Easy Geometry Problem?

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In the figure, what is the value of angle x? This problem is known as Langley's Adventitious Angles. It is also known as the hardest easy geometry problem because it can be solved by elementary methods but it is notoriously difficult to work out. Can you

• 03:48

Can You Solve This Harvard Admissions Question? Algebra Problem, 1869

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The Harvard admissions exam in 1869 included this algebra problem: "A man bought a watch, a chain, and a locket for \$216. The watch and locket together cost three times as much as the chain, and the chain and locket together cost half as much as the watch

• 07:20

An Alternative Proof That The Real Numbers Are Uncountable

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This video was co-written by my super smart hubby Simon Mackenzie. *My Last Video* My Infinity is Bigger Than Your Infinity https://youtu.be/X56zst79Xjg If you want to know more, check out these links and sources: The Annotated Turing - Charles Petzold ht

• 05:47

LIGO's Gravitational Wave Discovery Is Still In Question, But Why?

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LIGO’s discovery of gravitational waves rocked the world of physics. But now, some scientists are questioning their methods. Here’s what you need to know. WTF Is Gravity? Scientists Don’t Really Know Either - https://www.youtube.com/watch?v=g9_PdtL627k&t=

• 11:27

Can You Solve The Viral 11x11 = 4 Puzzle? The Correct Answer Explained

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If 11x11=4 and 22x22=16, what is 33x33=? This puzzle has been shared with the claim that only geniuses can solve it. It has gotten millions of views on the internet and Facebook as people have debated the correct answer. In this video I present what many

• 04:25

How The 'Impossible Drive' Could Break Newton's Third Law

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A device called the EM Drive appears to have the ability to break the Third Law of Physics. But does it even work? What Will Rockets Look Like In The Future? - https://youtu.be/fSm3LoZyjjI Sign Up For The Seeker Newsletter Here - http://bit.ly/1UO1PxI Rea

• 02:51

The Horse Horseshoe Boots Viral Algebra Problem - The Correct Answer Explained

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A lot of people are arguing over the correct answer to this algebra problem involving horses, horseshoes, and boots. A Facebook post with this problem has over 500,000 comments. Can you figure it out? In this video I explain the correct answer. Blog post:

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