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  • 04:24 Popular Where Do Genes Come From? - Carl Zimmer

    Where Do Genes Come From? - Carl Zimmer

    1,862 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/where-do-genes-come-from-carl-zimmer When life emerged on Earth about 4 billion years ago, the earliest microbes had a set of basic genes that succeeded in keeping them alive. In the age of humans and other larg

  • 04:44 Popular What Is The Heisenberg Uncertainty Principle? - Chad Orzel

    What Is The Heisenberg Uncertainty Principle? - Chad Orzel

    1,600 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/what-is-the-heisenberg-uncertainty-principle-chad-orzel The Heisenberg Uncertainty Principle states that you can never simultaneously know the exact position and the exact speed of an object. Why not? Because ev

  • 03:38 Popular Could Comets Be The Source Of Life On Earth? - Justin Dowd

    Could Comets Be The Source Of Life On Earth? - Justin Dowd

    1,598 views / 4 likes - added

    View full lesson: http://ed.ted.com/lessons/could-comets-be-the-source-of-life-on-earth-justin-dowd While comets were historically thought to be ill omens of war and famine, recent science has revealed that these celestial wonders actually contain amino a

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  • 04:27 Popular The Hidden Worlds Within Natural History Museums - Joshua Drew

    The Hidden Worlds Within Natural History Museums - Joshua Drew

    906 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/the-hidden-worlds-within-natural-history-museums-joshua-drew When you think of natural history museums, you might picture exhibits filled with ancient lifeless things, like dinosaurs or meteorites. But behind th

  • 04:34 Popular The Pharaoh That Wouldn't Be Forgotten - Kate Narev

    The Pharaoh That Wouldn't Be Forgotten - Kate Narev

    1,195 views / 3 likes - added

    View full lesson: http://ed.ted.com/lessons/the-pharaoh-that-wouldn-t-be-forgotten-kate-narev Hatshepsut was a female pharaoh during the New Kingdom in Egypt. Twenty years after her death, somebody smashed her statues, took a chisel and attempted to erase

  • 04:44 Popular How Does Cancer Spread Through The Body? - Ivan Seah Yu Jun

    How Does Cancer Spread Through The Body? - Ivan Seah Yu Jun

    1,376 views / 2 likes - added

    View full lesson: http://ed.ted.com/lessons/how-does-cancer-spread-through-the-body-ivan-seah-yu-jun Cancer usually begins with one tumor in a specific area of the body. But if the tumor is not removed, cancer has the ability to spread to nearby organs as

  • 04:46 Popular The Mighty Mathematics Of The Lever - Andy Peterson And Zack Patterson

    The Mighty Mathematics Of The Lever - Andy Peterson And Zack Patterson

    1,247 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/the-mighty-mathematics-of-the-lever-andy-peterson-and-zack-patterson Archimedes once said “Give me a place to stand, and I shall move the Earth.” While the idea of a person moving such a huge mass on their own m

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  • 05:54 Popular How To Create Cleaner Coal - Emma Bryce

    How To Create Cleaner Coal - Emma Bryce

    801 views / 0 likes - added

    View full lesson here: http://ed.ted.com/lessons/how-to-create-cleaner-coal-emma-bryce It takes a lot of fuel to heat our homes, preserve our food, and power our gadgets. And for 40 percent of the world, cheap, plentiful coal gets the job done. But coal a

  • 05:23 Popular Why Elephants Never Forget - Alex Gendler

    Why Elephants Never Forget - Alex Gendler

    1,119 views / 3 likes - added

    View full lesson: http://ed.ted.com/lessons/why-elephants-never-forget-alex-gendler It’s a common saying that elephants never forget. But the more we learn about elephants, the more it appears that their impressive memory is only one aspect of an incredib

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  • 07:02 Popular How To Understand Power - Eric Liu

    How To Understand Power - Eric Liu

    976 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/how-to-understand-power-eric-liu Every day, we move and operate within systems of power that other people have constructed. But we’re often uncomfortable talking about power. Why? Eric Liu describes the six sour

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  • 03:25 Popular What Does The Liver Do? - Emma Bryce

    What Does The Liver Do? - Emma Bryce

    1,670 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/what-does-the-liver-do-emma-bryce There’s a factory inside you that weighs about 1.4 kilograms and runs for 24 hours a day. It’s your liver: the heaviest organ in your body, which simultaneously acts as a storeh

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  • 03:42 Popular How Do Scars Form? - Sarthak Sinha

    How Do Scars Form? - Sarthak Sinha

    739 views / 2 likes - added

    View full lesson: http://ed.ted.com/lessons/how-do-scars-form-sarthak-sinha It’s hard to escape childhood without racking up a few scars. Why do these leftover reminders of a painful cut or crash look different from the rest of our skin? And why do they s

  • 04:01 How A Wound Heals Itself - Sarthak Sinha

    How A Wound Heals Itself - Sarthak Sinha

    674 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/how-a-wound-heals-itself-sarthak-sinha Our skin is the largest organ in our bodies, with a surface area of about 20 square feet in adults. When we are cut or wounded, our skin begins to repair itself through a c

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  • 05:38 Ideasthesia: How Do Ideas Feel? - Danko Nikolić

    Ideasthesia: How Do Ideas Feel? - Danko Nikolić

    664 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

  • 04:11 Is Our Climate Headed For A Mathematical Tipping Point? - Victor J. Donnay

    Is Our Climate Headed For A Mathematical Tipping Point? - Victor J. Donnay

    635 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/is-our-climate-headed-for-mathematical-chaos-victor-j-donnay Scientists have warned that as CO2 levels in the atmosphere rise an increase in Earth’s temperature by even two degrees could lead to catastrophic eff

  • 05:07 Popular How Do Germs Spread (and Why Do They Make Us Sick)? - Yannay Khaikin And Nicole Mideo

    How Do Germs Spread (and Why Do They Make Us Sick)? - Yannay Khaikin And Nicole Mideo

    778 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/how-do-germs-spread-and-why-do-they-make-us-sick-yannay-khaikin-and-nicole-mideo Germs are found on almost every surface we come in contact with, which makes it incredibly common for our bodies to be exposed to

  • 05:23 Popular A Different Way To Visualize Rhythm - John Varney

    A Different Way To Visualize Rhythm - John Varney

    962 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/a-different-way-to-visualize-rhythm-john-varney In standard notation, rhythm is indicated on a musical bar line. But there are other ways to visualize rhythm that can be more intuitive. John Varney describes the

  • 04:46 Popular How Do We Study The Stars? - Yuan-Sen Ting

    How Do We Study The Stars? - Yuan-Sen Ting

    1,592 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/how-do-we-study-the-stars-yuan-sen-ting Our best technology can send men to the Moon and probes to the edge of our solar system, but these distances are vanishingly small compared to the size of the universe. Ho

  • 05:30 Popular Light Seconds, Light Years, Light Centuries: How To Measure Extreme Distances - Yuan-Sen Ting

    Light Seconds, Light Years, Light Centuries: How To Measure Extreme Distances - Yuan-Sen Ting

    964 views / 2 likes - added

    View full lesson: http://ed.ted.com/lessons/how-do-we-measure-distances-in-space-yuan-sen-ting When we look at the sky, we have a flat, two-dimensional view. So how do astronomers figure the distances of stars and galaxies from Earth? Yuan-Sen Ting shows

  • 05:39 Popular The Atlantic Slave Trade: What Too Few Textbooks Told You - Anthony Hazard

    The Atlantic Slave Trade: What Too Few Textbooks Told You - Anthony Hazard

    942 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/the-atlantic-slave-trade-what-your-textbook-never-told-you-anthony-hazard Slavery has occurred in many forms throughout the world, but the Atlantic slave trade -- which forcibly brought more than 10 million Afri

  • 04:06 Popular What Is A Gift Economy? - Alex Gendler

    What Is A Gift Economy? - Alex Gendler

    787 views / 2 likes - added

    View full lesson: http://ed.ted.com/lessons/what-is-a-gift-economy-alex-gendler What if, this holiday season, instead of saying "thank you" to your aunt for her gift of a knitted sweater, the polite response expected from you was to show up at her house i

  • 05:48 Popular I'm Batman - Amy Wray

    I'm Batman - Amy Wray

    916 views / 4 likes - added

    View full lesson: http://ed.ted.com/lessons/i-m-batman-amy-wray What flies through the night, silently guarding and protecting our world from evil? Batman? Try...a bat. Like Batman, bats are widely misunderstood and vilified. Amy Wray disproves the myth t

  • 05:58 Popular The Great Conspiracy Against Julius Caesar - Kathryn Tempest

    The Great Conspiracy Against Julius Caesar - Kathryn Tempest

    786 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/the-great-conspiracy-against-julius-caesar-kathryn-tempest On March 15th, 44 BCE, Roman dictator Julius Caesar was assassinated by a group of about 60 of his own senators. Why did these self-titled Liberators wa

  • 04:01 Popular What We Know (and Don't Know) About Ebola - Alex Gendler

    What We Know (and Don't Know) About Ebola - Alex Gendler

    774 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/what-we-know-and-don-t-know-about-ebola-alex-gendler The highly virulent Ebola virus has seen a few major outbreaks since it first appeared in 1976 -- with the worst epidemic occurring in 2014. How does the viru

  • 04:36 Popular How Do Vaccines Work? - Kelwalin Dhanasarnsombut

    How Do Vaccines Work? - Kelwalin Dhanasarnsombut

    829 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/how-do-vaccines-work-kelwalin-dhanasarnsombut The first ever vaccine was created when Edward Jenner, an English physician and scientist, successfully injected small amounts of a cowpox virus into a young boy to

  • 05:18 How Spontaneous Brain Activity Keeps You Alive - Nathan S. Jacobs

    How Spontaneous Brain Activity Keeps You Alive - Nathan S. Jacobs

    667 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/how-spontaneous-brain-activity-keeps-you-alive-nathan-s-jacobs The wheels in your brain are constantly turning, even when you're asleep or not paying attention. In fact, most of your brain’s activities are ones

  • 04:44 Popular The Evolution Of The Human Eye - Joshua Harvey

    The Evolution Of The Human Eye - Joshua Harvey

    2,314 views / 3 likes - added

    View full lesson: http://ed.ted.com/lessons/the-evolution-of-the-human-eye-joshua-harvey The human eye is an amazing mechanism, able to detect anywhere from a few photons to a few quadrillion, or switch focus from the screen in front of you to the distant

  • 03:59 Popular Why The Arctic Is Climate Change's Canary In The Coal Mine - William Chapman

    Why The Arctic Is Climate Change's Canary In The Coal Mine - William Chapman

    992 views / 2 likes - added

    View full lesson: http://ed.ted.com/lessons/why-the-arctic-is-climate-change-s-canary-in-the-coal-mine-william-chapman The Arctic may seem like a frozen and desolate environment where nothing ever changes. But the climate of this unique and remote region

  • 05:16 Popular Einstein's Miracle Year - Larry Lagerstrom

    Einstein's Miracle Year - Larry Lagerstrom

    729 views / 0 likes - added

    View full lesson here: http://ed.ted.com/lessons/einstein-s-miracle-year-larry-lagerstrom As the year 1905 began, Albert Einstein faced life as a “failed” academic. Yet within the next twelve months, he would publish four extraordinary papers, each on a d

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  • 04:07 Popular Could A Blind Eye Regenerate? - David Davila

    Could A Blind Eye Regenerate? - David Davila

    1,327 views / 1 likes - added

    View full lesson here: http://ed.ted.com/lessons/could-a-blind-eye-regenerate-david-davila We tend to think of blindness as something you're born with, but with certain genetic diseases, it can actually develop when you’re a kid, or even when you’re an ad

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  • 09:15 Popular What is Chemical Evolution?

    What is Chemical Evolution?

    969 views / 0 likes - added

    Have you ever wondered how life first got started on Earth? So do scientists! Though the question has not yet been fully answered, a careful study of Chemical Evolution is beginning to shed light on this mystery. In this film you will learn what Chemical

  • 03:46 Popular What Triggers A Chemical Reaction? - Kareem Jarrah

    What Triggers A Chemical Reaction? - Kareem Jarrah

    2,452 views / 3 likes - added

    View full lesson: http://ed.ted.com/lessons/what-triggers-a-chemical-reaction-kareem-jarrah Chemicals are in everything we see, and the reactions between them can look like anything from rust on a spoon to an explosion on your stovetop. But why do these r

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  • 05:44 Popular The History Of Museums - J. V. Maranto

    The History Of Museums - J. V. Maranto

    751 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/why-do-we-have-museums-j-v-maranto Museums have been a part of human history for over 2,000 years -- but they weren't always like the ones we visit today. J.V. Maranto uncovers the evolution of museums, from the

  • 15:47 Popular How Poachers Became Caretakers - John Kasaona

    How Poachers Became Caretakers - John Kasaona

    943 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/how-poachers-became-caretakers-john-kasaona In his home of Namibia, John Kasaona is working on an innovative way to protect endangered animal species: giving nearby villagers (including former poachers) responsi

  • 05:03 Popular How Does Your Smartphone Know Your Location? - Wilton L. Virgo

    How Does Your Smartphone Know Your Location? - Wilton L. Virgo

    853 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/how-does-your-smartphone-know-your-location-wilton-l-virgo GPS location apps on a smartphone can be very handy when mapping a travel route or finding nearby events. But how does your smartphone know where you ar

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  • 05:22 Popular Why Shakespeare Loved Iambic Pentameter - David T. Freeman And Gregory Taylor

    Why Shakespeare Loved Iambic Pentameter - David T. Freeman And Gregory Taylor

    947 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/why-shakespeare-loved-iambic-pentameter-david-t-freeman-and-gregory-taylor Shakespeare sometimes gets a bad rap in high schools for his complex plots and antiquated language. But a quick peek into the rhythm of

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  • 04:52 Popular Why Do Buildings Fall In Earthquakes? - Vicki V. May

    Why Do Buildings Fall In Earthquakes? - Vicki V. May

    1,474 views / 5 likes - added

    View full lesson: http://ed.ted.com/lessons/why-do-buildings-fall-in-earthquakes-vicki-v-may Earthquakes have always been a terrifying phenomenon, and they’ve become more deadly as our cities have grown — with collapsing buildings posing one of the larges

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  • 04:37 Popular The Law Of Conservation Of Mass - Todd Ramsey

    The Law Of Conservation Of Mass - Todd Ramsey

    2,426 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/the-law-of-conservation-of-mass-todd-ramsey Everything in our universe has mass — from the smallest atom to the largest star. But the amount of mass has remained constant throughout existence even during the bir

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  • 05:42 Popular How We Think Complex Cells Evolved - Adam Jacobson

    How We Think Complex Cells Evolved - Adam Jacobson

    851 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/how-we-think-complex-cells-evolved-adam-jacobson Imagine you swallowed a small bird and suddenly gained the ability to fly … or you ate a cobra and were able to spit poisonous venom! Well, throughout the history

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  • 05:44 Popular The Sonic Boom Problem - Katerina Kaouri

    The Sonic Boom Problem - Katerina Kaouri

    1,021 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/what-causes-sonic-booms-katerina-kaouri Objects that fly faster than the speed of sound (like really fast planes) create a shock wave accompanied by a thunder-like noise: the sonic boom. These epic sounds can ca

  • 03:55 Popular How Do Your Kidneys Work? - Emma Bryce

    How Do Your Kidneys Work? - Emma Bryce

    1,235 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/how-do-your-kidneys-work-emma-bryce After drinking a few glasses of water on a hot day, you might be struck with a sudden ... urge. Behind that feeling are two bean-shaped organs that work as fine-tuned internal

  • 03:39 Popular The Science Of Static Electricity - Anuradha Bhagwat

    The Science Of Static Electricity - Anuradha Bhagwat

    1,242 views / 3 likes - added

    View full lesson: http://ed.ted.com/lessons/the-science-of-static-electricity-anuradha-bhagwat We’ve all had the experience: you’re walking across a soft carpet, you reach for the doorknob and … ZAP. But what causes this trademark jolt of static electrici

  • 04:42 Popular The Real Story Behind Archimedes’ Eureka! - Armand D'Angour

    The Real Story Behind Archimedes’ Eureka! - Armand D'Angour

    1,731 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/the-real-story-behind-archimedes-eureka-armand-d-angour When you think of Archimedes’ Eureka moment, you probably imagine a man in a bathtub, right? As it turns out, there's much more to the story. Armand D'Ango

  • 04:31 Popular Why It’s So Hard To Cure HIV/AIDS - Janet Iwasa

    Why It’s So Hard To Cure HIV/AIDS - Janet Iwasa

    1,044 views / 2 likes - added

    View full lesson: http://ed.ted.com/lessons/why-it-s-so-hard-to-cure-hiv-aids-janet-iwasa In 2008, something incredible happened: a man was cured of HIV. In over 70 million HIV cases, this was a first, and, so far, a last, and we don’t yet understand exac

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  • 04:33 Popular Plato’s Allegory Of The Cave - Alex Gendler

    Plato’s Allegory Of The Cave - Alex Gendler

    1,049 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/plato-s-allegory-of-the-cave-alex-gendler Twenty four hundred years ago, Plato, one of history’s most famous thinkers, said life is like being chained up in a cave forced to watch shadows flitting across a stone

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  • 05:14 Popular How Brain Parasites Change Their Host's Behavior - Jaap De Roode

    How Brain Parasites Change Their Host's Behavior - Jaap De Roode

    795 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/how-parasites-change-their-host-s-behavior-jaap-de-roode The biggest challenge in a parasite’s life is to move from one host to another. Intriguingly, many parasites have evolved the ability to manipulate the be

  • 05:46 Popular Learning From Smallpox: How To Eradicate A Disease - Julie Garon And Walter A. Orenstein

    Learning From Smallpox: How To Eradicate A Disease - Julie Garon And Walter A. Orenstein

    771 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/learning-from-smallpox-how-to-eradicate-a-disease-julie-garon-and-walter-a-orenstein For most of human history, we have sought to treat and cure diseases. But only in recent decades did it become possible to ens

  • 03:30 Popular Rhythm In A Box: The Story Of The Cajon Drum - Paul Jennings

    Rhythm In A Box: The Story Of The Cajon Drum - Paul Jennings

    851 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/rhythm-in-a-box-the-story-of-the-cajon-drum-paul-jennings Many modern musical instruments are complicated pieces of machinery with many moving parts. But the cajon is simply a drum and a stand and a seat all in

  • 04:07 Popular Did Shakespeare Write His Plays? - Natalya St. Clair And Aaron Williams

    Did Shakespeare Write His Plays? - Natalya St. Clair And Aaron Williams

    1,097 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/did-shakespeare-write-his-plays-natalya-st-clair-and-aaron-williams Some people question whether Shakespeare really wrote the works that bear his name – or whether he even existed at all. Could it be true that t

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  • 04:10 Popular The Last Banana: A Thought Experiment In Probability - Leonardo Barichello

    The Last Banana: A Thought Experiment In Probability - Leonardo Barichello

    2,079 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/the-last-banana-a-thought-experiment-in-probability-leonardo-barichello Imagine a game played with two players and two dice: if the biggest number rolled is one, two, three, or four, player 1 wins. If the bigges

  • 03:21 Popular What Does The Pancreas Do? - Emma Bryce

    What Does The Pancreas Do? - Emma Bryce

    1,740 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/what-does-the-pancreas-do-emma-bryce Beneath your ribs, you’ll find, among other things, the pancreas -- an organ that works a lot like a personal health coach. Emma Bryce explains how this organ controls your s

  • 05:40 Popular History Vs. Richard Nixon - Alex Gendler

    History Vs. Richard Nixon - Alex Gendler

    1,051 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/history-vs-richard-nixon-alex-gendler The president of the United States of America is often said to be one of the most powerful positions in the world. But of all the US presidents accused of abusing that power

  • 06:01 The Wars That Inspired Game Of Thrones - Alex Gendler

    The Wars That Inspired Game Of Thrones - Alex Gendler

    643 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/the-wars-that-inspired-game-of-thrones-alex-gendler Beginning around 1377, medieval England was shaken by a power struggle between two noble families, which spanned generations and involved a massive cast of cha

  • 04:22 Popular Why Do Your Knuckles Pop? - Eleanor Nelsen

    Why Do Your Knuckles Pop? - Eleanor Nelsen

    817 views / 3 likes - added

    View full lesson: http://ed.ted.com/lessons/why-do-your-knuckles-pop-eleanor-nelsen Some people love the feeling of cracking their knuckles, while others cringe at the sound. But what causes that trademark pop? And is it dangerous? Eleanor Nelsen gives th

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  • 04:17 Popular What Causes Economic Bubbles? - Prateek Singh

    What Causes Economic Bubbles? - Prateek Singh

    1,052 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/what-causes-economic-bubbles-prateek-singh During the 1600’s, the exotic tulip became a nationwide sensation; some single bulbs even sold for ten times the yearly salary of a skilled craftsman. Suddenly, though,

  • 04:33 Popular What Is Leukemia? - Danilo Allegra And Dania Puggioni

    What Is Leukemia? - Danilo Allegra And Dania Puggioni

    933 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/what-is-leukemia-danilo-allegra-and-dania-puggioni Stem cells found in the bone marrow are crucial for our health because they are needed to become new blood cells that sustain and protect our bodies. But when t

  • 04:41 Why Neutrinos Matter - Sílvia Bravo Gallart

    Why Neutrinos Matter - Sílvia Bravo Gallart

    630 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/why-neutrinos-matter-silvia-bravo-gallart Elementary particles are the smallest known building blocks in the universe—and the neutrino is one of the smallest of the small. These tiny neutrinos can tell us about

  • 04:00 Popular Could Your Brain Repair Itself? - Ralitsa Petrova

    Could Your Brain Repair Itself? - Ralitsa Petrova

    872 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/could-your-brain-repair-itself-ralitsa-petrova Imagine the brain could reboot, updating its damaged cells with new, improved units. That may sound like science fiction — but it’s a potential reality scientists a

  • 04:10 Popular How To Unboil An Egg - Eleanor Nelsen

    How To Unboil An Egg - Eleanor Nelsen

    775 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/how-to-unboil-an-egg-eleanor-nelsen It’s so obvious that it’s practically proverbial: you can’t unboil an egg. But actually, it turns out that you can -- sort of. Eleanor Nelsen explains the process by which mec

  • 04:19 Popular Why Is Biodiversity So Important? - Kim Preshoff

    Why Is Biodiversity So Important? - Kim Preshoff

    1,476 views / 2 likes - added

    View full lesson: http://ed.ted.com/lessons/why-is-biodiversity-so-important-kim-preshoff Our planet’s diverse, thriving ecosystems may seem like permanent fixtures, but they’re actually vulnerable to collapse. Jungles can become deserts, and reefs can be

  • 04:12 Popular How Brass Instruments Work - Al Cannon

    How Brass Instruments Work - Al Cannon

    897 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/how-brass-instruments-work-al-cannon What gives the trumpet its clarion ring and the tuba its gut shaking oompah-pah? And what makes the trombone so jazzy? Al Cannon shows how these answers lie not in the brass

  • 04:07 Popular What Really Happens To The Plastic You Throw Away - Emma Bryce

    What Really Happens To The Plastic You Throw Away - Emma Bryce

    1,381 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/what-really-happens-to-the-plastic-you-throw-away-emma-bryce We’ve all been told that we should recycle plastic bottles and containers. But what actually happens to the plastic if we just throw it away? Emma Bry

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  • 04:03 Popular The Effects Of Underwater Pressure On The Body - Neosha S Kashef

    The Effects Of Underwater Pressure On The Body - Neosha S Kashef

    786 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/the-effects-of-underwater-pressure-on-the-body-neosha-s-kashef Why would a fish throw up its stomach? What makes a scuba diver develop painful microbubbles in their joints? Neosha S Kashef details the basics of

  • 04:57 Popular Eye Vs. Camera - Michael Mauser

    Eye Vs. Camera - Michael Mauser

    1,096 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/eye-vs-camera-michael-mauser Your eyes don’t always capture the world exactly as a video camera would. But the eyes are remarkably efficient organs, the result of hundreds of millions of years of coevolution wit

  • 04:30 Popular How Do Geckos Defy Gravity? - Eleanor Nelsen

    How Do Geckos Defy Gravity? - Eleanor Nelsen

    805 views / 2 likes - added

    View full lesson: http://ed.ted.com/lessons/how-do-geckos-defy-gravity-eleanor-nelsen Geckos aren’t covered in adhesives or hooks or suction cups, and yet they can effortlessly scale vertical walls and hang from ceilings. What’s going on? Eleanor Nelsen e

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  • 04:37 Sunlight Is Way Older Than You Think - Sten Odenwald

    Sunlight Is Way Older Than You Think - Sten Odenwald

    477 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/sunlight-is-way-older-than-you-think-sten-odenwald It takes light a zippy 8 minutes to reach Earth from the surface of the Sun. But how long does it take that same light to travel from the Sun’s core to its surf

  • 07:37 Knighthood For The Professor

    Knighthood For The Professor

    533 views / 1 likes - added

    Our very own Professor Poliakoff has become Sir Martyn... He received a knighthood in the UK's New Year's Honours List. This video also features a "recent knight" - University of Nottingham Vice-Chancellor, Sir David Greenaway. Full interview with Sir Dav

  • 30:30 Popular Rhymes For Kids! - 30 Minutes Of Nursery Rhymes - Cool School

    Rhymes For Kids! - 30 Minutes Of Nursery Rhymes - Cool School

    1,111 views / 0 likes - added

    Check out a full 30 minutes of the best rhymes for kids here at Cool School! See some of your favorite nursery rhyme classics followed by the silly rhyme cartoons from Nursery Rhyme Time. SUBSCRIBE!! http://bit.ly/18enloo Best of Cool School: http://bit.l

  • 04:21 Popular Old MacDonald: A Cool School Kids Song Ft. Ms. Booksy & Crafty Carol

    Old MacDonald: A Cool School Kids Song Ft. Ms. Booksy & Crafty Carol

    920 views / 1 likes - added

    Cool School and Sesame Street have teamed up to bring you a kid's sing-a-long of Old MacDonald ⎯ Ei-Ei-O! Sing along with Ms. Booksy & Crafty Carol to a classic Old MacDonald nursery rhyme with a twist. Subscribe to Cool School's Channel: http://bit.ly/18

  • 02:46 Two Colour Chemiluminescent Clock Reaction - Periodic Table Of Videos

    Two Colour Chemiluminescent Clock Reaction - Periodic Table Of Videos

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    More details in full description. Dr Sam Tang adds hydrogen peroxide to pyrogallol, formaldehyde and luminol. Chemiluminescence is caused by molecules being formed with some of their electrons in a higher energy level and then losing that energy as light.

  • 02:00 Popular How Does Fusion Power The Sun?

    How Does Fusion Power The Sun?

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    The Sun contains 99.8 percent of all matter in the solar system. Under crushing pressure and extreme temperatures generated by gravity, the violent process of nuclear fusion powers the tremendous energy output of the sun. | http://science.discovery.com/tv

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  • 03:54 OK Go - Needing/Getting - Official Video

    OK Go - Needing/Getting - Official Video

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    Buy the video on iTunes: https://itunes.apple.com/us/album/needing-getting-bundle-ep/id508124847 See more about the guitars at: http://www.gretschguitars.com/features/okgo The new music video from OK Go, made in partnership with Chevrolet. OK Go set up ov

  • 03:54 Popular OK Go - This Too Shall Pass - Rube Goldberg Machine - Official Video

    OK Go - This Too Shall Pass - Rube Goldberg Machine - Official Video

    1,107 views / 0 likes - added

    From the OK Go album "Of the Blue Colour of the Sky" available at http://www.okgo.net/store Director: James Frost, OK Go and Syyn Labs. Producer: Shirley Moyers. The official video for the recorded version of "This Too Shall Pass" off the album "Of the Bl

  • 02:19 Why The Full Moon Is Better In Winter

    Why The Full Moon Is Better In Winter

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    Check out Phil Plait's "Bad Astronomy" on audible: http://www.audible.com/minutephysics or on www.badastronomy.com MinutePhysics is on Google+ - http://bit.ly/qzEwc6 And facebook - http://facebook.com/minutephysics And twitter - @minutephysics Minute Phys

  • 05:14 Popular How Airplanes Are Made

    How Airplanes Are Made

    1,560 views / 1 likes - added

    Behind-the-Scenes of an Airbus A350 being built! Thanks to the folks at Airbus for bringing me to France, Germany, & the UK to visit their headquarters and facilities and see so much incredible engineering. As you can probably tell from this video, I was

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  • 02:53 This Is Not A Rainbow

    This Is Not A Rainbow

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    Go to http://harrys.com and use offer code MINUTEPHYSICS for $5 off! Full circle rainbow image licensed from Birdseye View Photography http://www.birdseyeviewphotography.com.au/ Awesome website about rainbows: http://www.atoptics.co.uk/bows.htm And thanks

  • 02:50 Popular How Long Can You Balance A Pencil?

    How Long Can You Balance A Pencil?

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    Free Audiobook at http://www.audible.com/minutephysics Thanks to those who support me on subbable! Especially: Chris Romano @vicnice137 Sawwit: Reddit For Video http://sawwit.org @OWorthyFoo Nir Lifshitz @JMike9595 quantumrealityproject.com www.youtube.co

  • 14:53 Popular Snowman Art Project With Construction Paper

    Snowman Art Project With Construction Paper

    873 views / 1 likes - added

    Here's another fun project to do with young artists or a classroom full of students! We want to see how your snowman turns out, and what did you put behind him? EMAIL A PHOTO OF YOUR ART: myart@artforkidshub.com MAIL US YOUR ART: Art for Kids Hub P.O. Box

  • 01:39 What Exactly Is Plasma?

    What Exactly Is Plasma?

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    Most of us are familiar with the three common states of matter found on Earth: solids, liquids and gases. However, there is a fourth state of matter called plasma that is found in incredible abundance across the Universe. What exactly is plasma and in wha

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  • 03:28 Fishing Line | How It's Made

    Fishing Line | How It's Made

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    Find out how today's synthetic fishing line is woven, baked, tested and spooled to be extra durable. | http://www.sciencechannel.com/tv-shows/how-its-made/ Watch full episodes: http://bit.ly/HowItsMadeFullEpisodes Subscribe to Science Channel: http://www.

  • 10:12 Popular Mars: Crash Course Astronomy #15

    Mars: Crash Course Astronomy #15

    895 views / 3 likes - added

    The fourth planet from the sun and the outermost of the terrestrial planets, Mars has long been a popular spot for missions and imagination. Phil walks you through the planet's topography, core, and features. We'll take a look back to Mars's past and make

  • 12:23 Popular Would Headlights Work At Light Speed?

    Would Headlights Work At Light Speed?

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    If you were driving at the speed of light and turned on your headlights, what would happen? Twitter: http://www.twitter.com/tweetsauce Instagram: http://www.instagram.com/electricpants Sources and extras below!! Thanks to Jude for asking me this question

  • 01:50 Making Art With Microbes

    Making Art With Microbes

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    Meet Zachary Copfer, the man who has developed a process to make intricate portraits with microbes found on your skin. How does he do it? | For more Outrageous Acts of Science, visit http://science.discovery.com/tv-shows/outrageous-acts-of-science/#mkcpgn

  • 03:13 Could This Robotic Helper Become A Common Sight On A Sidewalk Near You?

    Could This Robotic Helper Become A Common Sight On A Sidewalk Near You?

    622 views / 0 likes - added

    Meet Budgee, a robotic helper designed to follow your movements and carry the load like a modern day pack mule. Budgee is able to to carry up to 50 lbs, while only weighing 20. Budgee could potentially have many practical applications, but is its design s

  • 03:15 Popular Could The Roboarm Revolutionize The Prosthetics Industry?

    Could The Roboarm Revolutionize The Prosthetics Industry?

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    Straight out of high school these makers have created a 3D printable, robotic prosthetic called the Roboarm--a prosthetic that allows users to manipulate objects using servos controlled by other working muscles. | For more, visit http://www.sciencechannel

  • 03:47 Popular Creating A Sun-Powered Death Ray

    Creating A Sun-Powered Death Ray

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    Kevin Moore and Grant Reynolds attempt to create a focused beam of light hot enough to melt bronze. To accomplish this goal, they will only use the lenses of old projection TV's and the abundant light of the sun. | For more, visit http://www.sciencechanne

  • 03:47 Popular Meet The Puzzlebox Orbit: A Drone Controlled By Brain Waves

    Meet The Puzzlebox Orbit: A Drone Controlled By Brain Waves

    766 views / 0 likes - added

    The inventors of the Puzzlebox orbit believe they are on the cutting edge of biosensor technology. But can their brain-computer interface actually control this flying toy? | For more, visit http://www.sciencechannel.com/tv-shows/all-american-makers/#mkcpg

  • 01:40 Popular Dynamic Shape Displays Let You Reach Out And Touch Someone

    Dynamic Shape Displays Let You Reach Out And Touch Someone

    1,264 views / 1 likes - added

    Researchers at MIT labs have created a dynamic shape display which allows users to virtually transmit motion. The video is hard to believe, but is this the future of communication? | For more Outrageous Acts of Science, visit http://science.discovery.com/

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  • 01:39 Popular Car Made Entirely Out Of Legos

    Car Made Entirely Out Of Legos

    1,695 views / 4 likes - added

    More than half a million pieces weighing over 1,100 lbs went into the construction of this working vehicle made almost entirely of Legos. How did Melbourne entrepreneur Steve Sammartino and a young Romanian genius, Raul Oaida, create this awesome, air-pow

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  • 01:32 Popular An Incredible 6-Year-Old Yo-Yo Master

    An Incredible 6-Year-Old Yo-Yo Master

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    This 6-year-old demonstrates some serious yo-yo handling skills. How does he do it? | http://science.discovery.com/tv-shows/outrageous-acts-of-science/#mkcpgn=ytsci1 Catch Outrageous Acts of Science Saturdays at 9/8c on Science! Subscribe to Science Chann

  • 02:40 Popular What Happens When Lava Meets Ice?

    What Happens When Lava Meets Ice?

    751 views / 1 likes - added

    When a team pours molten lava onto ice, the results are surprising. | For more Outrageous Acts of Science, visit http://science.discovery.com/tv-shows/outrageous-acts-of-science/#mkcpgn=ytsci1 Catch Outrageous Acts of Science Saturdays at 9/8c on Science!

  • 03:57 Wall Crawling With Science

    Wall Crawling With Science

    667 views / 2 likes - added

    Kevin Moore and Grant Reynolds create a pair of electromagnetic boots in an attempt to walk across the ceiling. | For more, visit http://www.sciencechannel.com/tv-shows/what-could-possibly-go-wrong/#mkcpgn=ytsci1 Catch WHAT COULD POSSIBLY GO WRONG? Saturd

  • 04:13 Popular The Future Is Here: A Homemade Hovercraft

    The Future Is Here: A Homemade Hovercraft

    964 views / 2 likes - added

    Can the guys build a steerable, leaf blower powered hovercraft that can traverse land AND water? | For more, visit http://www.sciencechannel.com/tv-shows/what-could-possibly-go-wrong/#mkcpgn=ytsci1 Catch WHAT COULD POSSIBLY GO WRONG? Saturdays at 10/9c on

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  • 03:20 Popular The Raht Racer Might Revolutionize Daily Commutes

    The Raht Racer Might Revolutionize Daily Commutes

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    The Raht Racer is the world's first highway safe biking vehicle that amplifies pedal power to car speeds. Can it really make it up to 70 mph? | For more, visit http://www.sciencechannel.com/tv-shows/all-american-makers/#mkcpgn=ytsci1 Catch ALL-AMERICAN MA

  • 02:26 Popular How Can This Chemical Be A Solid, Liquid, And Gas At The Same Time?

    How Can This Chemical Be A Solid, Liquid, And Gas At The Same Time?

    992 views / 1 likes - added

    How can a substance be a solid, liquid, and gas all at the same time? See the process scientists describe as "The Triple Point." | For more Outrageous Acts of Science, visit http://science.discovery.com/tv-shows/outrageous-acts-of-science/#mkcpgn=ytsci1 C

  • 04:25 Popular Why Your Brain Is In Your Head

    Why Your Brain Is In Your Head

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    Vote PBS Digital Studios for 'Best Science&Education Network' in the 2015 Webbys -- http://vid.io/xqjk ---- Check out BrainCraft: http://youtu.be/aucscX191vQ Subscribe to It's Okay To Be Smart: http://bit.ly/iotbs_sub↓ More info and sources below ↓ Follow

  • 02:34 Popular The Little Prince Official Trailer #1 (2015) - Marion Cotillard, Jeff Bridges Animated Movie HD

    The Little Prince Official Trailer #1 (2015) - Marion Cotillard, Jeff Bridges Animated Movie HD

    1,417 views / 1 likes - added

    Subscribe to TRAILERS: http://bit.ly/sxaw6hSubscribe to COMING SOON: http://bit.ly/H2vZUnSubscribe to INDIE TRAILERS: http://goo.gl/iPUuoLike us on FACEBOOK:http://goo.gl/dHs73Follow us on TWITTER: http://bit.ly/1ghOWmtThe Little Prince Official Trailer #

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  • 00:52 Popular Sesame Street:“Elmo The Musical – Volume 2” Preview

    Sesame Street:“Elmo The Musical – Volume 2” Preview

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    It’s volume two of Elmo’s math-filled musicals, packed with 7 all-new to DVD episodes! With over two hours of music, adventure, math, friendship and fun, little learners will love to sing along! Includes a bonus full-length video of “Play With Me Sesame:

  • 05:45 Popular What's The Deadliest Animal In The World?

    What's The Deadliest Animal In The World?

    857 views / 2 likes - added

    Besides humans, of course. Subscribe to It’s Okay To Be Smart: http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Follow on Twitter: http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Gates Foundation info on the world’s

  • 05:31 Why Are Some People Left-Handed?

    Why Are Some People Left-Handed?

    686 views / 0 likes - added

    The science of their sinister ways… Subscribe to It’s Okay To Be Smart: http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Follow on Twitter: http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Follow on Instagram: http:/

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  • 04:32 Popular Where Do Birds Go In Winter?

    Where Do Birds Go In Winter?

    902 views / 1 likes - added

    And where do they keep their suitcases? Subscribe to It’s Okay To Be Smart: http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Follow on Twitter: http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Follow on Instagram: ht

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  • 06:35 Popular Attack Of The Zombie Parasites!

    Attack Of The Zombie Parasites!

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    Did someone say BRAAAAAINS…? Subscribe: http://bit.ly/iotbs_sub Twitter: @okaytobesmart ↓ More info and sources below ↓ Shows like The Walking Dead are full of hungry, mindless, surprisingly fleet-footed armies of brain-eating zombies. Could they actually

  • 07:05 The Recipe For Life…

    The Recipe For Life…

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    We're cookin' in the primordial kitchen! Subscribe: http://bit.ly/iotbs_sub Twitter: @okaytobesmart↓ More info and sources below ↓ If the human body could be distilled down into one molecule, what would our chemical formula be? And WHY is it that way? Is

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  • 05:06 Popular %$?# Allergies!

    %$?# Allergies!

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    It’s the season for sneezin’! Subscribe: http://bit.ly/iotbs_sub Twitter: @okaytobesmart ↓ More info and sources below ↓ Springtime means the arrival of green grass, bright flowers, and buzzing bees. But for many of us, it’s also about sneezing, watery re

  • 01:05 LeBron Pays Tribute To Conner&Cayden Long

    LeBron Pays Tribute To Conner&Cayden Long

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    Sports Illustrated Sportsman of the Year LeBron James pays an emotional tribute to SportsKids of the Year, Conner and Cayden Long.

  • 01:45 Popular How Do You Turn A Human Into A Dolphin?

    How Do You Turn A Human Into A Dolphin?

    885 views / 1 likes - added

    The Flyboard is an incredible watercraft that allows riders to perform impressive acrobatics above and below the water's surface. How does it work? | http://science.discovery.com/tv-shows/outrageous-acts-of-science/#mkcpgn=ytsci1 Catch OUTRAGEOUS ACTS OF

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  • 10:18 Popular Mercury: Crash Course Astronomy #13

    Mercury: Crash Course Astronomy #13

    1,316 views / 10 likes - added

    Mercury is the closest planet to the sun. It has no atmosphere and is, as such, covered in craters. It's also incredibly hot but, surprisingly, has water ice hiding beneath its surface. -- Table of Contents Closest Planet to the Sun 0:03 Rotation Locked t

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  • 04:06 Popular How To Spot A Counterfeit Bill - Tien Nguyen

    How To Spot A Counterfeit Bill - Tien Nguyen

    1,693 views / 3 likes - added

    View full lesson: http://ed.ted.com/lessons/how-to-spot-a-counterfeit-bill-tien-nguyen Authentic dollar bills are equipped with many security features to make them difficult to forge. But...

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  • 03:35 Why Are Manhole Covers Round? - Marc Chamberland

    Why Are Manhole Covers Round? - Marc Chamberland

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    View full lesson: http://ed.ted.com/lessons/why-are-manhole-covers-round-marc-chamberland Why are most manhole covers round? Sure it makes them easy to roll, and slide into place in any ...

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  • 04:53 Popular What's The Difference Between Accuracy And Precision? - Matt Anticole

    What's The Difference Between Accuracy And Precision? - Matt Anticole

    936 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/what-s-the-difference-between-accuracy-and-precision-matt-anticole When we measure things, most people are only worried about how accurate, or how...

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  • 05:55 Popular The Importance Of Focus - Richard St. John

    The Importance Of Focus - Richard St. John

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    View full lesson: http://ed.ted.com/lessons/the-importance-of-focus-richard-st-john How might focus help you succeed? Using examples of famous people from disparate fields, such as James Cameron,.

  • 04:52 Popular Should We Eat Bugs? - Emma Bryce

    Should We Eat Bugs? - Emma Bryce

    966 views / 2 likes - added

    View full lesson: http://ed.ted.com/lessons/should-we-eat-bugs-emma-bryce What's tasty, abundant and high in protein? Bugs! Although less common outside the tropics, entomophagy, the practice...

  • 04:00 Popular Cell Vs. Virus: A Battle For Health - Shannon Stiles

    Cell Vs. Virus: A Battle For Health - Shannon Stiles

    1,126 views / 2 likes - added

    View full lesson: http://ed.ted.com/lessons/cell-vs-virus-a-battle-for-health-shannon-stiles All living things are made of cells. In the human body, these highly efficient units are protected...

  • 05:29 Popular A Brief History Of Melancholy - Courtney Stephens

    A Brief History Of Melancholy - Courtney Stephens

    736 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/a-brief-history-of-melancholy-courtney-stephens If you are a living, breathing human being, chances are you have felt sad at least a few times in...

  • 04:29 Popular DNA: The Book Of You - Joe Hanson

    DNA: The Book Of You - Joe Hanson

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    View full lesson: http://ed.ted.com/lessons/dna-the-book-of-you-joe-hanson Your body is made of cells -- but how does a single cell know to become part of your nose, instead of your toes?...

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  • 04:29 Why Is Ketchup So Hard To Pour? - George Zaidan

    Why Is Ketchup So Hard To Pour? - George Zaidan

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    View full lesson: http://ed.ted.com/lessons/why-is-ketchup-so-hard-to-pour-george-zaidan Ever go to pour ketchup on your fries...and nothing comes out? Or the opposite happens, and your plate...

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  • 04:44 Popular How Do Vitamins Work? - Ginnie Trinh Nguyen

    How Do Vitamins Work? - Ginnie Trinh Nguyen

    1,414 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/what-s-the-value-of-vitamins-ginnie-trinh-nguyen Vitamins are the building blocks that keep our bodies running; they help build muscle and bone,...

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  • 03:26 Popular Grammar's Great Divide: The Oxford Comma - TED-Ed

    Grammar's Great Divide: The Oxford Comma - TED-Ed

    1,139 views / 2 likes - added

    View full lesson: http://ed.ted.com/lessons/grammar-s-great-divide-the-oxford-comma-ted-ed If you read "Bob, a DJ and a clown" on a guest list, are three people coming to the party, or only...

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  • 04:51 Popular The Colossal Consequences Of Supervolcanoes - Alex Gendler

    The Colossal Consequences Of Supervolcanoes - Alex Gendler

    856 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/the-colossal-consequences-of-supervolcanoes-alex-gendler In 1816, Europe and North America were plagued by heavy rains, odd-colored snow, famines,...

  • 04:38 Popular Schrödinger's Cat: A Thought Experiment In Quantum Mechanics - Chad Orzel

    Schrödinger's Cat: A Thought Experiment In Quantum Mechanics - Chad Orzel

    726 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/schrodinger-s-cat-a-thought-experiment-in-quantum-mechanics-chad-orzel Austrian physicist Erwin Schrödinger, one of the founders of quantum mechanics,...

  • 03:03 Popular How Do You Know You Exist? - James Zucker

    How Do You Know You Exist? - James Zucker

    1,288 views / 3 likes - added

    View full lesson: http://ed.ted.com/lessons/how-do-you-know-you-exist-james-zucker How do you know you're real? Is existence all just a big dream? Has some mad scientist duped us into simply...

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  • 03:55 Popular The Science Of Spiciness - Rose Eveleth

    The Science Of Spiciness - Rose Eveleth

    791 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/the-science-of-spiciness-rose-eveleth When you take a bite of a hot pepper, your body reacts as if your mouth is on fire -- because that's essentially...

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  • 05:19 Popular How Optical Illusions Trick Your Brain - Nathan S. Jacobs

    How Optical Illusions Trick Your Brain - Nathan S. Jacobs

    1,992 views / 3 likes - added

    View full lesson: http://ed.ted.com/lessons/how-optical-illusions-trick-your-brain-nathan-s-jacobs Optical illusions are images that seem to trick our minds into seeing something different...

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  • 03:37 Popular How Does The Thyroid Manage Your Metabolism? - Emma Bryce

    How Does The Thyroid Manage Your Metabolism? - Emma Bryce

    772 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/how-does-the-thyroid-manage-your-metabolism-emma-bryce Nestled in the tissues of your neck is a small, unassuming organ that wields enormous power...

  • 05:23 Popular The 2,400-year Search For The Atom - Theresa Doud

    The 2,400-year Search For The Atom - Theresa Doud

    992 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/the-2-400-year-search-for-the-atom-theresa-doud How do we know what matter is made of? The quest for the atom has been a long one, beginning 2400...

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  • 03:22 Popular How Do The Lungs Work? - Emma Bryce

    How Do The Lungs Work? - Emma Bryce

    953 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/what-do-the-lungs-do-emma-bryce When you breathe, you transport oxygen to the body's cells to keep them working, while also clearing your system...

  • 04:05 Popular What Are Those Floaty Things In Your Eye? - Michael Mauser

    What Are Those Floaty Things In Your Eye? - Michael Mauser

    852 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/what-are-those-floaty-things-in-your-eye-michael-mauser Sometimes, against a uniform, bright background such as a clear sky or a blank computer...

  • 05:11 Is Math Discovered Or Invented? - Jeff Dekofsky

    Is Math Discovered Or Invented? - Jeff Dekofsky

    631 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/is-math-discovered-or-invented-jeff-dekofsky Would mathematics exist if people didn't? Did we create mathematical concepts to help us understand...

  • 04:58 Why Do We Pass Gas? - Purna Kashyap

    Why Do We Pass Gas? - Purna Kashyap

    664 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/why-do-we-pass-gas-purna-kashyap Flatulence is a daily phenomenon. In fact, most human beings pass gas 10-20 times a day (yes, that includes you)....

  • 04:58 Popular How Does Your Brain Respond To Pain? - Karen D. Davis

    How Does Your Brain Respond To Pain? - Karen D. Davis

    759 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/how-does-your-brain-respond-to-pain-karen-d-davis Everyone experiences pain -- but why do some people react to the same painful stimulus in different...

  • 04:52 What Did Democracy Really Mean In Athens? - Melissa Schwartzberg

    What Did Democracy Really Mean In Athens? - Melissa Schwartzberg

    632 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/what-did-democracy-really-mean-in-athens-melissa-schwartzberg While we might consider elections to be the cornerstone of democracy, the Athenians...

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  • 04:28 Popular How Do Dogs Smell

    How Do Dogs Smell

    1,424 views / 5 likes - added

    View full lesson: http://ed.ted.com/lessons/how-do-dogs-see-with-their-noses-alexandra-horowitz You may have heard the expression that dogs 'see with their noses.' But these creature's...

  • 05:07 Popular Why Are Some People Left-handed? - Daniel M. Abrams

    Why Are Some People Left-handed? - Daniel M. Abrams

    920 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/why-are-some-people-left-handed-daniel-m-abrams Today, about one-tenth of the world's population are southpaws. Why are such a small proportion...

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  • 05:27 Can Robots Be Creative? - Gil Weinberg

    Can Robots Be Creative? - Gil Weinberg

    653 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/can-robots-be-creative-gil-weinberg People have been grappling with the question of artificial creativity -- alongside the question of artificial...

  • 05:55 Popular History Vs. Christopher Columbus - Alex Gendler

    History Vs. Christopher Columbus - Alex Gendler

    1,241 views / 4 likes - added

    View full lesson: http://ed.ted.com/lessons/history-vs-christopher-columbus-alex-gendler Many people in the United States and Latin America have grown up celebrating the anniversary of Christopher...

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  • 05:45 Popular The Benefits Of A Good Night's Sleep - Shai Marcu

    The Benefits Of A Good Night's Sleep - Shai Marcu

    926 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/the-benefits-of-a-good-night-s-sleep-shai-marcu It's 4am, and the big test is in 8 hours. You've been studying for days, but you still don't...

  • 04:14 Popular What Causes Bad Breath? - Mel Rosenberg

    What Causes Bad Breath? - Mel Rosenberg

    835 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/what-causes-bad-breath-mel-rosenberg Halitosis is a curse that has plagued humanity since ancient times. But what causes it, and why is it so universall...

  • 05:42 Popular The Language Of Lying - Noah Zandan

    The Language Of Lying - Noah Zandan

    792 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/the-language-of-lying-noah-zandan We hear anywhere from 10 to 200 lies a day. And although we've spent much of our history coming up with ways...

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  • 03:53 Popular Where Did Earth’s Water Come From? - Zachary Metz

    Where Did Earth’s Water Come From? - Zachary Metz

    991 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/where-did-earth-s-water-come-from-zachary-metz Water covers over 70% of the Earth, cycling from the oceans and rivers to the clouds and back again....

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  • 05:34 Popular At What Moment Are You Dead? - Randall Hayes

    At What Moment Are You Dead? - Randall Hayes

    719 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/at-what-moment-are-you-dead-randall-hayes For as far back as we can trace our existence, humans have been fascinated with death and resurrection....

  • 05:05 Why Sitting Is Bad For You - Murat Dalkilinç

    Why Sitting Is Bad For You - Murat Dalkilinç

    580 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/why-sitting-is-bad-for-you-murat-dalkilinc Sitting down for brief periods can help us recover from stress or recuperate from exercise. But nowadays,...

  • 04:46 Popular Earworms: Those Songs That Get Stuck In Your Head - Elizabeth Hellmuth Margulis

    Earworms: Those Songs That Get Stuck In Your Head - Elizabeth Hellmuth Margulis

    1,080 views / 2 likes - added

    View full lesson: http://ed.ted.com/lessons/earworms-those-songs-that-get-stuck-in-your-head-elizabeth-hellmuth-margulis Have you ever been waiting in line at the grocery store, innocently...

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  • 02:54 The Lost Giants of Georgia

    The Lost Giants of Georgia

    641 views / 0 likes - added

    A discovery of bones belonging to seemingly giant people raise questions. Research looks to the real giants that live among us. | For more, visit http://science.discovery.com/tv-shows/the-unexplained-files/#mkcpgn=ytsci1 Subscribe to Science Channel! | ht

  • 02:27 Do Transplanted Organs Carry Memories?

    Do Transplanted Organs Carry Memories?

    630 views / 0 likes - added

    Hundreds of organ recipients have reported unique experiences after their transplant. | For more, visit http://science.discovery.com/tv-shows/the-unexplained-files/#mkcpgn=ytsci1 Subscribe to Science Channel! | http://www.youtube.com/subscription_center?a

  • 04:20 Space School- Solar System

    Space School- Solar System

    648 views / 0 likes - added

    Scientists are still discovering hidden objects in the 7 billion mile long region of space we call home.

  • 03:12 Popular Driving on the Surface of Mars

    Driving on the Surface of Mars

    754 views / 0 likes - added

    Scientists are studying Mars from every angle in preparation to send the first human astronauts to the Red Planet. Data from the Curiosity rover has proven invaluable. | For more STRIP THE COSMOS, visit http://www.sciencechannel.com/tv-shows/strip-the-cos

  • 02:52 Popular 60-Foot-Wide Asteroid Hurtles Toward Earth

    60-Foot-Wide Asteroid Hurtles Toward Earth

    748 views / 0 likes - added

    In February 2013, a stunning sight in the sky over Russia made international headlines. The light of an asteroid hurtling toward Earth was brighter than the sun. | For more STRIP THE COSMOS, visit http://www.sciencechannel.com/tv-shows/strip-the-cosmos/#m

  • 03:54 Popular Recreating Asteroid Strike That Killed Dinosaurs

    Recreating Asteroid Strike That Killed Dinosaurs

    768 views / 0 likes - added

    The dinosaurs died off after a massive asteroid strike with a billion times more energy than the atomic bomb dropped on Hiroshima. A team at NASA studies the impact to learn more. | For more STRIP THE COSMOS, visit http://www.sciencechannel.com/tv-shows/s

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  • 04:02 Popular Inside Monster Martian Volcanoes

    Inside Monster Martian Volcanoes

    811 views / 3 likes - added

    Mars is home to Olympus Mons, the largest volcano in the solar system, which covers an area the size of Arizona. | For more STRIP THE COSMOS, visit http://www.sciencechannel.com/tv-shows/strip-the-cosmos/#mkcpgn=ytsci1 Subscribe to Science Channel! | http

  • 03:21 Popular Is There Life on Enceladus?

    Is There Life on Enceladus?

    725 views / 0 likes - added

    Saturn's tiny, frozen moon Enceladus could hold the secrets to extraterrestrial life. | For more STRIP THE COSMOS, visit http://www.sciencechannel.com/tv-shows/strip-the-cosmos/#mkcpgn=ytsci1 Subscribe to Science Channel! | http://www.youtube.com/subscrip

  • 04:18 Popular Machine-Made Lace | How It's Made

    Machine-Made Lace | How It's Made

    859 views / 0 likes - added

    Sit back and enjoy the factory fun with this How It's Made: Lace music video. | For more How It's Made, visit http://science.discovery.com/tv-shows/how-its-made/#mkcpgn=ytsci1 Subscribe to Science Channel! | http://www.youtube.com/subscription_center?add_

  • 02:37 Popular How Are NFL Footballs Made?

    How Are NFL Footballs Made?

    1,106 views / 5 likes - added

    Take a look inside the process of making footballs for the NFL! | For more, visit http://www.sciencechannel.com/tv-shows/how-its-made/#mkcpgn=ytsci1 Watch full episodes: http://bit.ly/HowItsMadeFullEps Subscribe to Science Channel: http://www.youtube.com/

  • 02:24 Popular Chocolate Chip Cookies | How It's Made

    Chocolate Chip Cookies | How It's Made

    984 views / 0 likes - added

    It's one of America's favorite foods. Learn how chocolate chip cookies go from industrial mixer to dessert platters across the U.S. | For more How It's Made, visit http://science.discovery.com/tv-shows/how-its-made/#mkcpgn=ytsci1 Subscribe to Science Chan

  • 02:15 Small Dinosaurs Get Their Revenge

    Small Dinosaurs Get Their Revenge

    661 views / 0 likes - added

    This dinosaur has a long memory and though he's smaller, he still seeks his revenge. Watch the whole playlist of dinosaur videos here: http://www.youtube.com/watch?v=sW4p6vzviKQ&list=PLfpPYJH6OjtZGZH1hlR40wD4rnq14p41x&index=1 Subscribe For More Dinosaur V

  • 06:44 Popular Math Antics - Convert any Fraction to a Decimal

    Math Antics - Convert any Fraction to a Decimal

    1,873 views / 2 likes - added

    http://www.mathantics.com Here is the video mentioned about converting Base-10 fractions: http://www.youtube.com/watch?v=_jcW-ZgpRbM Here is the video mentioned about decimal numbers: http://www.youtube.com/watch?v=Mst8iZjIpFE And here is the video mentio

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  • 11:18 Popular Math Antics - Long Division

    Math Antics - Long Division

    1,657 views / 5 likes - added

    Learn More at mathantics.com Visit http://www.mathantics.com for more Free math videos and additional subscription based content!

  • 03:43 Popular As Long As You Love Me / Wide Awake - Pentatonix (Justin Bieber / Katy Perry Cover)

    As Long As You Love Me / Wide Awake - Pentatonix (Justin Bieber / Katy Perry Cover)

    957 views / 3 likes - added

    2015 TOUR DATES (CITIES&VENUES LISTED BELOW) -- http://ptxofficial.com/tour BUY THAT’S CHRISTMAS TO ME http://smarturl.it/PTXtctmiT?iqiD=YT BUY PTX VOL III http://smarturl.it/PTXVol3?IQId=yt | BUY PTXMAS http://smarturl.it/PTXmas?IQId=yt | BUY PTX VOL I h

  • 02:25 Popular C is for Cookie/Rubber Ducky - Pentatonix feat. Cookie Monster

    C is for Cookie/Rubber Ducky - Pentatonix feat. Cookie Monster

    776 views / 0 likes - added

    Check out our performance of the number medley on Sesame Street: http://bit.ly/1d46q4k Watch the full episode when it airs on TV: Feb 7, 2014 on PBS Kids ORDER PTXMAS DELUXE EDITION - http://smarturl.it/PTXmas?IQid=yt ORDER PTX VOL. 2 - http://smarturl.it

  • 03:33 Great Museums TV Series:  Highlights

    Great Museums TV Series: Highlights

    645 views / 0 likes - added

    A highlights reel featuring some of the most memorable episodes of Great Museums to appear on public television. A full listing of Great Museums episodes can be found at www.GreatMuseums.org.

  • 02:34 An Acquiring Mind: An Inside Look, Part One

    An Acquiring Mind: An Inside Look, Part One

    620 views / 0 likes - added

    Great Museums presents Part One of its new webisode series titled: "The Metropolitan Museum of Art: The Philippe de Montebello Years: Curators Celebrate Three Decades of Acquisitions". Helen C. Evans, the Mary and Michael Jaharis Curator of Byzantine Art,

  • 05:05 An Acquiring Mind: An Inside Look, Part Two

    An Acquiring Mind: An Inside Look, Part Two

    504 views / 0 likes - added

    Great Museums presents Part Two of its new webisode series titled: "The Metropolitan Museum of Art: The Philippe de Montebello Years: Curators Celebrate Three Decades of Acquisitions". Helen C. Evans, the Mary and Michael Jaharis Curator of Byzantine Art,

  • 03:10 Popular New Orleans: A Living Museum of Music - A Webisode

    New Orleans: A Living Museum of Music - A Webisode

    784 views / 1 likes - added

    From the Lower Ninth Ward to Congo Square, New Orleans has long been the hub of the ultimate music experience and a living museum of music. But beneath the pomp and circumstance of Mardi Gras and Jazz Fest lies an invaluable community of local musicians i

  • 06:38 Popular PREVIEW: Great Museums: Elevated Thinking: The High Line in New York City

    PREVIEW: Great Museums: Elevated Thinking: The High Line in New York City

    817 views / 0 likes - added

    Since 1998, GREAT MUSEUMS' call to action has been: "Find the museum in your own backyard." A perfect example is New York City's High Line. Recycled from a defunct elevated railroad, today's High Line is a fantastic world of woodlands, thickets, prairies

  • 56:50 Popular Great Museums: Elevated Thinking: The High Line in New York City

    Great Museums: Elevated Thinking: The High Line in New York City

    807 views / 1 likes - added

    Narrated by actress Susan Sarandon, this hour-long documentary film showcases the High Line, a most unusual and unlikely public park. Since opening in 2009, it has become a top global tourist destination, with nearly 5 million visitors annually. Since 199

  • 03:09 Popular Sesame Street: People in Your Neighborhood -- Ballet Dancer

    Sesame Street: People in Your Neighborhood -- Ballet Dancer

    782 views / 0 likes - added

    Murray Monster and Ovejita travel to Lincoln Center to join four New York City Ballet dancers in the studio to learn about ballerinas. Dancers Kristen Segin, Alina Dronova, Callie Bachman, and Sara Adams explain how dancers use their bodies to tell a stor

  • 04:04 Sesame Street: People in Your Neighborhood -- Conductor

    Sesame Street: People in Your Neighborhood -- Conductor

    523 views / 0 likes - added

    Murray Monster and Ovejita travel to Lincoln Center to join New York Philharmonic Music Director Alan Gilbert to find out just what a conductor really does. Ovejita plays timpani while Gilbert conducts Mozart's Eine Kleine Nachtmusik with Juilliard studen

  • 03:41 Popular Sesame Street: People in Your Neighborhood -- Opera Singer

    Sesame Street: People in Your Neighborhood -- Opera Singer

    751 views / 0 likes - added

    Murray Monster and Ovejita travel to Lincoln Center to join Metropolitan Opera mezzo-soprano Isabel Leonard. While dancers tell stories with their bodies, Isabel will show how stories are sung by opera singers and give a demonstration of a funny vocal exe

  • 04:42 Popular Sesame Street: Sesame Street's Search for a New Hispanic Neighbor -- Part One

    Sesame Street: Sesame Street's Search for a New Hispanic Neighbor -- Part One

    985 views / 1 likes - added

    Someone new is moving to Sesame Street! Join us for this three part series that chronicles our journey to find the newest addition to the neighborhood. Part one features the open casting call held in New York City. Subscribe to the Sesame Street Channel h

  • 02:27 Sesame Street: Let's Go Driving!

    Sesame Street: Let's Go Driving!

    598 views / 0 likes - added

    Subscribe to the Sesame Street Channel here: http://www.youtube.com/subscription_center?add_user=SesameStreet For more fun games and videos for your preschooler in a safe, child-friendly environment, visit us at http://www.sesamestreet.org Sesame Street i

  • 02:01 Popular Sesame Street: Sesame Street's Search for a New Hispanic Neighbor -- Part Two

    Sesame Street: Sesame Street's Search for a New Hispanic Neighbor -- Part Two

    874 views / 0 likes - added

    Someone new is moving to Sesame Street! Join us for this three part series that chronicles our journey to find the newest addition to the neighborhood. Part two features the small group actors who were called back for the second round of auditions. Subscr

  • 03:35 Popular Sesame Street: Sesame Street's Search for a New Hispanic Neighbor -- Part Three

    Sesame Street: Sesame Street's Search for a New Hispanic Neighbor -- Part Three

    998 views / 1 likes - added

    Someone new has moved to Sesame Street! Meet "Armando," and help us welcome him to the neighborhood. Subscribe to the Sesame Street Channel here: http://www.youtube.com/subscription_center?add_user=SesameStreet For more fun games and videos for your presc

  • 00:54 Sesame Street: "Arts and Crafts Playdate" Preview

    Sesame Street: "Arts and Crafts Playdate" Preview

    540 views / 0 likes - added

    Learn to be "art smart" with your Sesame Street friends with two full episodes of crafty fun! Click this link for the "Arts and Crafts Playdate" DVD! http://www.amazon.com/Sesame-Street-Arts-Crafts-Playdate/dp/B00CENWUYA/ Subscribe to the Sesame Street Ch

  • 02:33 Popular Sesame Street: I Love My Hair Song (Mando's Spanish Version)

    Sesame Street: I Love My Hair Song (Mando's Spanish Version)

    1,165 views / 1 likes - added

    Is your hair frizzy or wavy or straight or curly or long or short or red or black or brown? Whatever it is, you should love your hair! It's a part of who you are. Listen to Mando sing about why he loves his hair! Watch the original: http://youtu.be/enpFde

  • 05:14 Popular Sesame Street: Lord of the Crumbs (Lord of the Rings Parody)

    Sesame Street: Lord of the Crumbs (Lord of the Rings Parody)

    738 views / 1 likes - added

    Legend speaks of a dessert unimaginably sweet and delicious. When it was destroyed all that remained was the dessert's powerful recipe which remained in the hands of a monster named Gobble for a long time. When the recipe disappeared, all of the cookies o

  • 04:19 Sesame Street: Kermit Directs a Movie

    Sesame Street: Kermit Directs a Movie

    562 views / 0 likes - added

    Lights. Camera. Action. Before Kermit was the big star we all know and love, he made ends meet directing old westerns with a bunch of B-list muppets. Watch this very special clip of Kermit perfecting his craft behind the camera long before he was in the s

  • 03:07 Sesame Street: Little Red Riding Hood

    Sesame Street: Little Red Riding Hood

    660 views / 1 likes - added

    And now Sesame Street proudly presents Musical Fairy Tales, where we bring a little music to your favorite fairy tales. Today's story takes us over the mountain and through the woods where Little Red Riding Hood has just arrived a granny's house with a ba

  • 00:38 Popular Sesame Street: "Alphabet Songs" Preview

    Sesame Street: "Alphabet Songs" Preview

    782 views / 0 likes - added

    Sing your ABCs with Elmo and all your favorite Sesame Street Muppets! Full of furry friends, animation, and children, this feature includes songs for every letter of the alphabet! Special guests Norah Jones, the Dixie Chicks, and Smokey Robinson. Subscrib

  • 05:42 Popular Sesame Street: Relax (Word on the Street Podcast)

    Sesame Street: Relax (Word on the Street Podcast)

    1,047 views / 2 likes - added

    Relax! It's the weekend. Everyone could use a little bit of relaxing every now and then. Whether your frustrated from standing in line or your tired from a long hard week of preschool, it's important to make time for relaxing. Subscribe to the Sesame Stre

  • 01:18 Sesame Street: Draw Your Love

    Sesame Street: Draw Your Love

    549 views / 0 likes - added

    Ever draw on a foggy window? It's so fun! See if you can draw your mom a nice picture on the window for mother's day! Draw a heart or a picture of her, and then hurry up and show it to her because those window drawings don't last too long! Subscribe to th

  • 05:52 Popular Sesame Street: Adventure (Word on the Street Podcast)

    Sesame Street: Adventure (Word on the Street Podcast)

    891 views / 0 likes - added

    The word on the street is adventure, and if you haven't been on an adventure yet, Murray has a bunch of great adventurous ideas for you! Ever go looking for slugs in your backyard? What about digging a gigantic hole at the beach? Life is full of adventure

  • 01:40 Sesame Street: Bert&Ernie Imagine

    Sesame Street: Bert&Ernie Imagine

    633 views / 0 likes - added

    Your imagination is where all kinds of neat things can happen. Your room could turn into something totally cool like a fish tank, or your bed could really be a race car. Imagine you are a fish driving that race car? What would that feel like? What kinds o

  • 05:18 Popular Sesame Street: Star S'Mores (Star Wars Parody)

    Sesame Street: Star S'Mores (Star Wars Parody)

    1,064 views / 4 likes - added

    A long time ago in a cookies and milky way galaxy far, far away...Princess Parfaya was taken prisoner by the Evil Galactic Empire and had to be saved by a group of unlikely heroes including the young Luke Piewalker, Flan Solo, and Chewie,the Cookiee. Subs

  • 04:06 Popular Sesame Street: Socktober Telethon with Grover and Kid President!

    Sesame Street: Socktober Telethon with Grover and Kid President!

    817 views / 2 likes - added

    Grover and Kid President are teaming up for Sock-cess! To help their friends in need, Grover and Kid President are hosting a Telethon to collect socks for the homeless to keep their feet warm in the winter. You can help too! Helping is as easy as bringing

  • 03:08 Popular Sesame Street: Five Words to Say More Often with Grover and Kid President

    Sesame Street: Five Words to Say More Often with Grover and Kid President

    730 views / 0 likes - added

    Kid President and Grover are here to give you Five Words You Should Say More Often! Isn't that so generous? They are selflessly giving you these five words. Whats that? You want to pay it forward? Awesome! Well, get involved in Socktober. It's as easy as

  • 02:15 Sesame Street: Jonah Hill Learns the Word, Empty

    Sesame Street: Jonah Hill Learns the Word, Empty

    674 views / 0 likes - added

    There are no pretzels left in the pretzel bowl. There is no water left in the glass, and there are no wild animals in the cage. The bowl, the glass, and the cage are all empty. Fortunately, Jonah Hill and Murray have a box full of crayons to keep the wild

  • 01:44 Sesame Street: Blue Jay Song

    Sesame Street: Blue Jay Song

    699 views / 0 likes - added

    One fine evening, a blue jay had a party. The nest was full and everyone had a good time. When the party came to an end, the robin flew away, and the pigeon hailed a cab, and all the other birdies found their way home until the nest was finally empty. Emp

  • 01:34 Sesame Street: Nia Long Divides

    Sesame Street: Nia Long Divides

    545 views / 0 likes - added

    Divide means to separate things into different groups or sections. Nia Long and Abby Cadabby demonstrate by dividing a group of birds. Can you separate the chickens from the penguins? How many are there of each? Subscribe to the Sesame Street Channel here

  • 11:53 Popular Samurai, Daimyo, Matthew Perry, and Nationalism: Crash Course World History #34

    Samurai, Daimyo, Matthew Perry, and Nationalism: Crash Course World History #34

    809 views / 1 likes - added

    In which John Green teaches you about Nationalism. Nationalism was everywhere in the 19th century, as people all over the world carved new nation-states out of old empires. Nationalist leaders changed the way people thought of themselves and the places th

  • 10:33 Popular The Amazing Life and Strange Death of Captain Cook: Crash Course World History #27

    The Amazing Life and Strange Death of Captain Cook: Crash Course World History #27

    816 views / 2 likes - added

    In which John Green teaches you about the life and death of one of history's great explorers, Captain James Cook of the British Navy. He charted large swaths of the Pacific ocean, laid claim to Australia and New Zealand, and died a bizarre death in the Sa

  • 11:08 Popular The Atlantic Slave Trade: Crash Course World History #24

    The Atlantic Slave Trade: Crash Course World History #24

    1,022 views / 0 likes - added

    In which John Green teaches you about one of the least funny subjects in history: slavery. John investigates when and where slavery originated, how it changed over the centuries, and how Europeans and colonists in the Americas arrived at the idea that peo

  • 11:32 Popular Wait For It...The Mongols!: Crash Course World History #17

    Wait For It...The Mongols!: Crash Course World History #17

    990 views / 2 likes - added

    Crash Course World History is now available on DVD! Visit http://dft.ba/-CCWHDVD to buy a set for your home or classroom. You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything

  • 11:55 Popular Ancient Egypt: Crash Course World History #4

    Ancient Egypt: Crash Course World History #4

    1,583 views / 9 likes - added

    In which John covers the long, long history of ancient Egypt, including the Old, Middle and New Kingdoms, and even a couple of intermediate periods. Learn about mummies, pharaohs, pyramids and the Nile with John Green. Crash Course World History is now av

  • 11:54 Popular Vascular Plants = Winning! - Crash Course Biology #37

    Vascular Plants = Winning! - Crash Course Biology #37

    1,100 views / 0 likes - added

    Hank introduces us to one of the most diverse and important families in the tree of life - the vascular plants. These plants have found tremendous success and the their secret is also their defining trait: conductive tissues that can take food and water f

  • 11:32 Popular Langston Hughes&the Harlem Renaissance: Crash Course Literature 215

    Langston Hughes&the Harlem Renaissance: Crash Course Literature 215

    876 views / 3 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. Free is nice, but if you can afford to pay a little every month, it really helps us to continue producing th

  • 11:55 Popular To Kill a Mockingbird, Part I - Crash Course Literature 210

    To Kill a Mockingbird, Part I - Crash Course Literature 210

    766 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. Free is nice, but if you can afford to pay a little every month, it really helps us to continue producing th

  • 12:07 Popular A Long and Difficult Journey, or  The Odyssey: Crash Course Literature 201

    A Long and Difficult Journey, or The Odyssey: Crash Course Literature 201

    757 views / 1 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. Free is nice, but if you can afford to pay a little every month, it really helps us to continue producing th

  • 13:42 Popular The Cold War in Asia: Crash Course US History #38

    The Cold War in Asia: Crash Course US History #38

    971 views / 1 likes - added

    Crash Course World History is now available on DVD! Visit http://dft.ba/-CCWHDVD to buy a set for your home or classroom. You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything

  • 13:35 Popular The Cold War: Crash Course US History #37

    The Cold War: Crash Course US History #37

    927 views / 3 likes - added

    Crash Course World History is now available on DVD! Visit http://dft.ba/-CCWHDVD to buy a set for your home or classroom. You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything

  • 13:51 Popular Gilded Age Politics:Crash Course US History #26

    Gilded Age Politics:Crash Course US History #26

    797 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 keep the channel producing great conten

  • 10:54 Popular The Civil War Part 2: Crash Course US History #21

    The Civil War Part 2: Crash Course US History #21

    1,262 views / 6 likes - added

    In which John Green teaches you how the Civil War played a large part in making the United States the country that it is today. He covers some of the key ways in which Abraham Lincoln influenced the outcome of the war, and how the lack of foreign interven

  • 14:11 Popular The Market Revolution: Crash Course US History #12

    The Market Revolution: Crash Course US History #12

    787 views / 0 likes - added

    In which John Green teaches you about the Market Revolution. In the first half of the 19th century, the way people lived and worked in the United States changed drastically. At play was the classic (if anything in a 30 year old nation can be called classi

  • 12:41 Popular Who Won the American Revolution?: Crash Course US History #7

    Who Won the American Revolution?: Crash Course US History #7

    1,048 views / 1 likes - added

    In which John Green teaches you about the American Revolution. And the Revolutionary War. I know we've labored the point here, but they weren't the same thing. In any case, John will teach you about the major battles of the war, and discuss the strategies

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  • 11:38 The Quakers, the Dutch, and the Ladies: Crash Course US History #4

    The Quakers, the Dutch, and the Ladies: Crash Course US History #4

    658 views / 2 likes - added

    In which John Green teaches you about some of the colonies that were not in Virginia or Massachussetts. Old New York was once New Amsterdam. Why they changed it, I can say; ENGLISH people just liked it better that way, and when the English took New Amster

  • 11:27 Popular The Natives and the English - Crash Course US History #3

    The Natives and the English - Crash Course US History #3

    939 views / 2 likes - added

    In which John Green teaches you about relations between the early English colonists and the native people the encountered in the New World. In short, these relations were poor. As soon as they arrived, the English were in conflict with the native people.


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