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Search Results: "Why can't you divide by zero? - TED-Ed"

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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

    1,122 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 Why can't you divide by zero? - TED-Ed

    Why can't you divide by zero? - TED-Ed

    1,425 views / 0 likes - added

    Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/why-can-t-you-divide-by-zero In the world of math, many strange results are possible when we change the rules. But there’s one rule that most of us have

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  • 05:12 Popular Animation Basics: The Optical Illusion Of Motion - TED-Ed

    Animation Basics: The Optical Illusion Of Motion - TED-Ed

    930 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/animation-basics-the-optical-illusion-of-motion-ted-ed How do animators make still images come to life? Are the images really moving, or are they merely an optical illusion? TED-Ed takes you behind the scenes to

  • 06:43 Popular Animation Basics: The Art Of Timing And Spacing - TED-Ed

    Animation Basics: The Art Of Timing And Spacing - TED-Ed

    789 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/animation-basics-the-art-of-timing-and-spacing-ted-ed Expert timing and spacing is what separates a slide show from a truly amazing animation. TED-Ed demonstrates, by manipulating various bouncing balls, how the

  • 04:38 Popular A Brief History Of Religion In Art - TED-Ed

    A Brief History Of Religion In Art - TED-Ed

    884 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/a-brief-history-of-religion-in-art-ted-ed Before we began putting art into museums, art mostly served as the visual counterpart to religious stories. Are these theological paintings, sculptures, textiles and ill

  • 05:04 Making A TED-Ed Lesson: Visualizing Complex Ideas

    Making A TED-Ed Lesson: Visualizing Complex Ideas

    636 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/making-a-ted-ed-lesson-visualizing-complex-ideas View original lesson: http://ed.ted.com/lessons/exploration-on-the-big-data-frontier-tim-smith How can animation convey complex, intangible concepts? A visual met

  • 05:08 TED-Ed - Flatland

    TED-Ed - Flatland

    536 views / 1 likes - added

    I was invited to collaborate with TED-Ed to create an animation to introduce the novella "Flatland" by Edwin A. Abbott. I was responsible for all aspects of design, animation, and execution. David Housden shared his amazing score from the Thomas was Alone

  • 01:53 Popular How to Divide Fractions

    How to Divide Fractions

    870 views / 0 likes - added

    Watch more Basic Math Skills videos: http://www.howcast.com/videos/262765-How-to-Divide-Fractions Math can be scary, but don't give up. Follow these simple steps, and soon you'll be dividing fractions like a pro. Step 1: Write the problem Write out the fi

  • 04:31 Popular Why Do We Divide the Day Into Seconds, Minutes, and Hours?

    Why Do We Divide the Day Into Seconds, Minutes, and Hours?

    776 views / 1 likes - added

    →Subscribe for new videos every day! https://www.youtube.com/user/TodayIFoundOut?sub_confirmation=1 →How "Dick" came to be short for 'Richard': https://youtu.be/BH1NAwwKtcg?list=PLR0XuDegDqP2Acy6g9Ta7hzC0Rr3RDS6q Never run out of things to say at the wate

  • 05:20 Popular The Great Brain Debate - Ted Altschuler

    The Great Brain Debate - Ted Altschuler

    741 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/the-great-brain-debate-ted-altschuler Throughout history, scientists have proposed conflicting ideas on how the brain carries out functions like perception, memory, and movement. Is each of these tasks carried o

  • 06:05 Popular Divide by Zero on the Friden STW10 Mechanical Calculator

    Divide by Zero on the Friden STW10 Mechanical Calculator

    1,011 views / 0 likes - added

    Please, try a divide by zero! Pleeeeeease! What would happen? What if Katherine Johnson did that in the movie Hidden Figures (this is the Friden that sits on her desk)? Would it catch fire? Would the rocket trajectory go to infinity? Now you are finally g

  • 03:18 Popular Let's Make History…by Recording It - StoryCorps & TED Prize

    Let's Make History…by Recording It - StoryCorps & TED Prize

    795 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/let-s-make-history-by-recording-it-storycorps-ted-prize Download the StoryCorps app here: http://ow.ly/UZarA What if Anne Frank hadn’t kept a diary? What if no one could listen to Martin Luther King’s Mountainto

  • 04:26 Could We Cure HIV With Lasers? | Patience Mthunzi | TED Talks

    Could We Cure HIV With Lasers? | Patience Mthunzi | TED Talks

    618 views / 0 likes - added

    Swallowing pills to get medication is a quick, painless and often not entirely effective way of treating disease. A potentially better way? Lasers. In this passionate talk, TED Fellow Patience Mthunzi explains her idea to use lasers to deliver drugs direc

  • 09:00 Popular These Robots Come To The Rescue After A Disaster | Robin Murphy | TED Talks

    These Robots Come To The Rescue After A Disaster | Robin Murphy | TED Talks

    1,123 views / 0 likes - added

    When disaster strikes, who's first on the scene? More and more, it’s a robot. In her lab, Robin Murphy builds robots that fly, tunnel, swim and crawl through disaster scenes, helping firefighters and rescue workers save more lives safely — and help commun

  • 15:39 Popular This New Telescope Might Show Us The Beginning Of The Universe | Wendy Freedman | TED Talks

    This New Telescope Might Show Us The Beginning Of The Universe | Wendy Freedman | TED Talks

    719 views / 0 likes - added

    When and how did the universe begin? A global group of astronomers wants to answer that question by peering as far back in time as a large new telescope will let us see. Wendy Freedman headed the creation of the Giant Magellan Telescope, under constructio

  • 12:09 Popular The Math Behind Basketball's Wildest Moves | Rajiv Maheswaran | TED Talks

    The Math Behind Basketball's Wildest Moves | Rajiv Maheswaran | TED Talks

    900 views / 0 likes - added

    Basketball is a fast-moving game of improvisation, contact and, ahem, spatio-temporal pattern recognition. Rajiv Maheswaran and his colleagues are analyzing the movements behind the key plays of the game, to help coaches and players combine intuition with

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  • 23:08 Popular A Rare Interview With The Mathematician Who Cracked Wall Street | Jim Simons | TED Talks

    A Rare Interview With The Mathematician Who Cracked Wall Street | Jim Simons | TED Talks

    857 views / 0 likes - added

    Jim Simons was a mathematician and cryptographer who realized: the complex math he used to break codes could help explain patterns in the world of finance. Billions later, he’s working to support the next generation of math teachers and scholars. TED’s Ch

  • 02:44 Two Monkeys Were Paid Unequally: Excerpt from Frans de Waal's TED Talk

    Two Monkeys Were Paid Unequally: Excerpt from Frans de Waal's TED Talk

    386 views / 0 likes - added

    What happens when you pay two monkeys unequally? Watch what happens. An excerpt from the TED Talk: "Frans de Waal: Moral behavior in animals." Watch the whole talk here: http://www.ted.com/talks/frans_de_waal_do_animals_have_morals.html

  • 16:10 Popular How Quantum Biology Might Explain Life’s Biggest Questions | Jim Al-Khalili | TED Talks

    How Quantum Biology Might Explain Life’s Biggest Questions | Jim Al-Khalili | TED Talks

    714 views / 0 likes - added

    How does a robin know to fly south? The answer might be weirder than you think: Quantum physics may be involved. Jim Al-Khalili rounds up the extremely new, extremely strange world of quantum biology, where something Einstein once called “spooky action at

  • 05:17 These Solar-Powered Carnivorous Flatworms Divide and Conquer | Deep Look

    These Solar-Powered Carnivorous Flatworms Divide and Conquer | Deep Look

    22 views / 0 likes - added

    Tiny marine flatworms called acoels hunt for prey in coral reefs. They're referred to as plant-animals'' because they've got a partnership with photosynthetic algae that live inside of them. But this acoel's real superpower is its ability to regenerate an

  • 07:42 MASH-UP: Ed, Edd n Eddy's First vs. Last Scene | Cartoon Network

    MASH-UP: Ed, Edd n Eddy's First vs. Last Scene | Cartoon Network

    178 views / 0 likes - added

    Watch Ed, Edd n Eddy on HBOMax.See how the Ed boys got their start on Cartoon Network, and how they ended it all by finally meeting Eddy's brother.Episodes: The Ed-Touchables, Ed, Edd N Eddy's Big Picture ShowAbout Cartoon Network:Welcome to Cartoon Netwo

  • 04:52 Popular Ed Sheeran - Shape of You (Piano Cover)

    Ed Sheeran - Shape of You (Piano Cover)

    836 views / 9 likes - added

    Shape of You Piano Cover, Ed Sheeran Click the

  • 03:58 Popular Shape Of You - Ed Sheeran | Cover by Sapphire

    Shape Of You - Ed Sheeran | Cover by Sapphire

    2,101 views / 12 likes - added

    Shape Of You - Ed Sheeran | Cover by Sapphire. My first video as a 14 year old!

  • 04:35 Popular Ed Sheeran - Photograph (Official Music Video)

    Ed Sheeran - Photograph (Official Music Video)

    1,019 views / 2 likes - added

    Download on iTunes: http://smarturl.it/x-itunesdlx Listen on Spotify: http://smarturl.it/stream.photograph Directed by Emil Nava Subscribe to Ed's channel: http://bit.ly/SubscribeToEdSheeran Follow Ed on... Facebook: http://www.facebook.com/EdSheeranMusic

  • 46:56 Popular The Microbes Within Us - with Ed Yong

    The Microbes Within Us - with Ed Yong

    1,044 views / 0 likes - added

    Ed Yong explores the tens of trillions of microbes swarming around your body, diving into the microbiome and the grand view of life it provides. Watch the Q&A: https://youtu.be/K4GBVDn_Ldg Subscribe for regular science videos: http://bit.ly/RiSubscRibe Yo

  • 01:36 Popular Don't Be Normal! This speech by Ed Sheeran will inspire you.

    Don't Be Normal! This speech by Ed Sheeran will inspire you.

    1,032 views / 1 likes - added

    Beautiful speech by Ed Sheeran

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  • 05:58 Starting a Food Revolution in School | TED + GBS Present Torchbearers

    Starting a Food Revolution in School | TED + GBS Present Torchbearers

    605 views / 1 likes - added

    When students at London’s Charlton Manor Primary School learn about history, they use chocolate. In math class, they weigh and measure fruit smoothies. For a lesson in shapes and sizes, they utilize bananas and grapes. Taking inspiration from world-renown

  • 01:11 Scientists Build Artificial Cell That Can Grow and Divide Like a Real One

    Scientists Build Artificial Cell That Can Grow and Divide Like a Real One

    197 views / 0 likes - added

    Its a new first for genetic engineering.

  • 24:18 Popular Minecraft | TED THE MYSTERIOUS PIG..

    Minecraft | TED THE MYSTERIOUS PIG..

    961 views / 9 likes - added

    Minecraft | TED THE MYSTERIOUS PIG.. ► Subscribe and join TeamTDM! :: http://bit.ly/TxtGm8 ► Follow Me on Twitter :: http://www.twitter.com/DiamondMinecart ► Previous video :: https://youtu.be/k3e8XsJRlXw Today, we are playing another Minecraft Custom Map

  • 02:18 Popular Britney Spears - Ed McMahons Star Search 1992 - BSCH

    Britney Spears - Ed McMahons Star Search 1992 - BSCH

    768 views / 0 likes - added

    Britney Spears Ed McMahons Star Search 1992 [Britney Spears Chile] Individual design

  • 01:46 The Time Capsule | Ed, Edd, n Eddy | Cartoon Network

    The Time Capsule | Ed, Edd, n Eddy | Cartoon Network

    397 views / 0 likes - added

    Watch Ed, Edd n Eddy and your favorite old school shows on the CN app! http://cartn.co/WatchCNLegacyEd, Edd n Eddy put together a time capsule to remember some of their favorite memories.About Cartoon Network: Welcome to Cartoon Network's YouTube Channel,

  • 05:08 Ed, Edd n Eddy | The Queen of the House | Cartoon Network

    Ed, Edd n Eddy | The Queen of the House | Cartoon Network

    520 views / 0 likes - added

    Ed, Edd and Eddy are trapped by the queen and her prince. Happy 25th Anniversary, Cartoon Network UK! Celebrate with us watching our brand-new shows and episodes and the all-time classics. All volumes of Ed, Edd and Eddy, now only £3.99 on Google Play in

  • 04:44 Popular Thinking Out Loud - Ed Sheeran (Cover By Grant From KIDZ BOP)

    Thinking Out Loud - Ed Sheeran (Cover By Grant From KIDZ BOP)

    1,051 views / 3 likes - added

    Grant from KIDZ BOP sings "Thinking Out Loud" by Ed Sheeran Follow Grant: Instagram: http://bit.ly/kbgrantinsta Twitter: http://bit.ly/kbgranttwitter YouTube: http://bit.ly/kbgrantyoutube

  • 22:57 Popular FULL EPISODE: The Eds Are Coming | Ed, Edd, n Eddy | Cartoon Network

    FULL EPISODE: The Eds Are Coming | Ed, Edd, n Eddy | Cartoon Network

    1,222 views / 1 likes - added

    We're celebrating our 30th Edd style with an out-of-this-world Ed, Edd, and Eddy episode! Stream more of your favorite Edd boys on HBOMax. SUBSCRIBE: https://bit.ly/3I6u2LoAbout Cartoon Network:Welcome to Cartoon Network's YouTube Channel, your destinatio

  • 06:01 Meet the 90-Year-Old Armchair Archaeologist | TED + GBS Present Torchbearers

    Meet the 90-Year-Old Armchair Archaeologist | TED + GBS Present Torchbearers

    563 views / 0 likes - added

    Space archaeologist Sarah Parcak is a modern-day Indiana Jones. She analyzes satellite imagery in order to find ancient sites hidden from view. With GlobalXplorer, an online platform using the power of the crowd to find, protect and monitor archaeological

  • 07:21 Bringing Medicine to the World’s Forgotten Corners | TED + GBS Present Torchbearers

    Bringing Medicine to the World’s Forgotten Corners | TED + GBS Present Torchbearers

    528 views / 0 likes - added

    One billion people in the world lack basic access to healthcare. Dr. Raj Panjabi has dedicated his work to bringing medical attention to the blind spots of the global health system. Through his organization, Last Mile Health, he targets underserved commun

  • 02:37 Sesame Street: Two Different Worlds with Ed Sheeran Lyric Video

    Sesame Street: Two Different Worlds with Ed Sheeran Lyric Video

    370 views / 0 likes - added

    Sing along to the lyrics on the screen as Ed Sheeran sings about the two different worlds children live in: at home and at school.Subscribe to the Sesame Street Channel here: http://www.youtube.com/subscription_center?add_user=SesameStreet For more fun ga

  • 19:31 Pepper Master Ed Currie Tastes 10 Of The Hottest Peppers in the World | Epicurious

    Pepper Master Ed Currie Tastes 10 Of The Hottest Peppers in the World | Epicurious

    135 views / 0 likes - added

    Smokin’ Ed Currie, founder and president of PuckerButt Pepper Company, visits Epicurious to taste and rank 10 of the hottest chile peppers on the planet. As the pepper breeder who created the famous Carolina Reaper and a professional hot sauce maker

  • 44:46 The hidden world of animal senses with Ed Yong

    The hidden world of animal senses with Ed Yong

    135 views / 0 likes - added

    Join acclaimed science journalist Ed Yong as he explores the world as it is truly perceived by other animals, from sniffing dogs to echolocating bats. Watch the Q&A here: https://youtu.be/oAutGPYfdsgEd's book "An Immense World: A journey through the anima

  • 05:04 Music copyright: Understanding musicians like Ed Sheerans legal battles | CBC Kids News

    Music copyright: Understanding musicians like Ed Sheerans legal battles | CBC Kids News

    141 views / 0 likes - added

    Why do some musicians get sued for music copyright violation?CBC Kids News contributor Ainara Alleyn explores the question of music ownership with help from a songwriter, a musicologist and a music clearance expert. Watch the video below to learn how musi

  • 03:48 Shivers - Ed Sheeran [Official Music Video] | Mini Pop Kids Cover

    Shivers - Ed Sheeran [Official Music Video] | Mini Pop Kids Cover

    496 views / 3 likes - added

    These voices will give you SHIVERS!! Sing along with the Mini Pop Kids doing their best Ed Sheeran! Streaming on: Spotify: https://open.spotify.com/album/7tYZua8ab5nxOLpGJmitTo?si=pc15-xUdRVCB7_xoAhKJkg Apple Music: https://music.apple.com/ca/album/shiver

  • 13:53 WING'ED by a CHICKEN!

    WING'ED by a CHICKEN!

    522 views / 0 likes - added

    Please SUBSCRIBE - http://bit.ly/BWchannel Tour Tickets on Sale! - http://bit.ly/bravetickets Pre-Order Coyote’s Book - http://bit.ly/BOOKbraveadventures Watch More - http://bit.ly/OLgoldticket In this segment of On Location, Coyote and the crew take you

  • 05:20 Gumball | You Just Got Bus-ted | The Allergy | Cartoon Network

    Gumball | You Just Got Bus-ted | The Allergy | Cartoon Network

    344 views / 0 likes - added

    Subscribe to The Amazing World of Gumball - http://bit.ly/2gjL91JFollow us for all the latest Gumball news! Website - http://www.theamazingworldofgumball.com/ Facebook - http://bit.ly/2foqTcOGumball, the amusing blue cat with a giant head and his best bud

  • 02:49 Popular The Beatles - Twist & Shout - Performed Live On The Ed Sullivan Show 2/23/64

    The Beatles - Twist & Shout - Performed Live On The Ed Sullivan Show 2/23/64

    718 views / 0 likes - added

    The Beatles - Twist & Shout - Performed Live On The Ed Sullivan Show 2/23/64 The Beatles Now Streaming. Listen to the Come Together Playlist here: http://smarturl.it/BeatlesCT Download 1+ http://smarturl.it/Beatles1 Buy 1+ http://smarturl.it/Beatles1s For

  • 02:37 Popular The Beatles - I Want To Hold Your Hand - Performed Live On The Ed Sullivan Show 2/9/64

    The Beatles - I Want To Hold Your Hand - Performed Live On The Ed Sullivan Show 2/9/64

    1,128 views / 1 likes - added

    The Beatles Now Streaming. Listen to the Come Together Playlist here: http://smarturl.it/BeatlesCT Download 1+ http://smarturl.it/Beatles1 Buy 1+ http://smarturl.it/Beatles1s ‘I Want to Hold Your Hand’ was the first Beatles’ record to top both the UK and

  • 01:53 The funky -ed irregular verb | The parts of speech | Grammar | Khan Academy

    The funky -ed irregular verb | The parts of speech | Grammar | Khan Academy

    567 views / 1 likes - added

    These are the most regular of the irregular verbs; while they don't behave exactly like regular verbs, like present tense "walk" become past tense "walked", they do maintain the "-ed" sound. It's just spelled differently. Practice this yourself on Khan Ac

  • 02:18 A New Circus Is In Town...The Flying Eduardo Bros | Ed, Edd, N' Eddy | Cartoon Network

    A New Circus Is In Town...The Flying Eduardo Bros | Ed, Edd, N' Eddy | Cartoon Network

    180 views / 0 likes - added

    Putting on a circus is hard work and things don't always go according to plan! The Edds have proof of that when they put one together for the cul-de-sac kids.SUBSCRIBE: https://bit.ly/3I6u2LoAbout Cartoon Network:Welcome to Cartoon Network's YouTube Chann

  • 02:44 Welcome To Driver's Ed ... For Supertankers

    Welcome To Driver's Ed ... For Supertankers

    433 views / 0 likes - added

    It turns out that supertankers and cruise ships have valets. They're called maritime pilots, and they're among the most elite ship handlers in the world. So where does one go to learn how to park the largest ships in the world? To the Maritime Pilots Inst

  • 11:32 Popular Student Humiliates Special Ed Kid ft. Lewis Howes | Dhar Mann

    Student Humiliates Special Ed Kid ft. Lewis Howes | Dhar Mann

    1,310 views / 3 likes - added

    Dhar Mann Studios x @Lewis Howes - Whatever you believe, you can achieve. For your chance to win a MacBook Pro and an iPad Pro all you have to do is SUBSCRIBE to my channel and Lewis Howes channel then comment done in the comment section. I'll choose 1 wi

  • 02:49 Sesame Street: Ed Sheeran- Two Different Worlds

    Sesame Street: Ed Sheeran- Two Different Worlds

    681 views / 0 likes - added

    At home you can play with your mommy and daddy, and you can talk whenever you want. At school you can play too - with your friends, but you must raise your hand to speak and follow your teachers’ instructions. You live in two different worlds. Subscribe t

  • 04:12 Popular Taylor Swift - Everything Has Changed ft. Ed Sheeran

    Taylor Swift - Everything Has Changed ft. Ed Sheeran

    1,579 views / 4 likes - added

    Music video by Taylor Swift performing Everything Has Changed. (C) 2013 Big Machine Records, LLC.

  • 02:21 NPR Ed's 50 Great Teachers: Socrates

    NPR Ed's 50 Great Teachers: Socrates

    516 views / 0 likes - added

    So who was Socrates anyway? We ask students at a California school about the Socratic teaching method and the questions it inspires.

  • 04:20 Popular How batteries work - Adam Jacobson

    How batteries work - Adam Jacobson

    739 views / 0 likes - added

    Learning English with TED-ed! TED-ed How batteries work - Adam Jacobson with subtitle. Source http://ed.ted.com/

  • 02:28 Popular How To Visualize One Part Per Million

    How To Visualize One Part Per Million

    894 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/how-to-visualize-one-part-per-million-kim-preshoff-the-ted-ed-community “Parts per million” is a scientific unit of measurement that counts the number of units of one substance per one million units of another.

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  • 02:43 The Order of Operations Song (PEMDAS) | Silly School Songs

    The Order of Operations Song (PEMDAS) | Silly School Songs

    616 views / 0 likes - added

    Learn the Order of Operations (including an important note about PEMDAS) with this fun, funky and very catchy tune. For more information and music, visit http://sillyschoolsongs.com. Lyrics:Parenthesis, ExponentsMultiply or Divide, Add or SubtractParenthe

  • 03:19 Popular The Cancer Gene We All Have - Michael Windelspecht

    The Cancer Gene We All Have - Michael Windelspecht

    719 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/the-cancer-gene-we-all-have-michael-windelspecht Within every cell in our body, two copies of a tumor suppressor gene called BRCA1 are tasked with regulating the speed at which cells divide. Michael Windelspecht

  • 06:04 Popular The life cycle of a t-shirt - Angel Chang

    The life cycle of a t-shirt - Angel Chang

    942 views / 3 likes - added

    Learn more about TED-Ed Clubs here: https://ed.ted.com/clubs View full lesson: https://ed.ted.com/lessons/the-life-cycle-of-a-t-shirt-angel-chang Consider the classic white t-shirt. Annually, we sell and buy 2 billion t-shirts globally, making it one of t

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  • 06:57 Electric Vocabulary

    Electric Vocabulary

    615 views / 0 likes - added

    We all know the words around electricity, "charge," "positive," "battery", and more. But where do they come from and what do they really mean? Let the history of these words illuminate the physics of electric phenomena. Lesson by James Sheils, animation b

  • 03:44 How we see color - Colm Kelleher

    How we see color - Colm Kelleher

    563 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/how-we-see-color-colm-kelleher There are three types of color receptors in your eye: red, green and blue. But how do we see the amazing kaleidoscope of other colors that make up our world? Colm Kelleher explains

  • 06:09 Popular Beatboxing 101 - BEAT NYC

    Beatboxing 101 - BEAT NYC

    795 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/beatboxing-101-beat-nyc There's no need for instruments to make music; you can use the greatest instrument of all, your own body. Members of BEAT NYC teach the basics of beatboxing (think trumpets, bass drums, a

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  • 05:02 Popular Why Do Some People Have Seasonal Allergies? - Eleanor Nelsen

    Why Do Some People Have Seasonal Allergies? - Eleanor Nelsen

    1,202 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/why-do-some-people-have-seasonal-allergies-eleanor-nelsen Ah, spring. Grass growing, flowers blooming, trees budding. For those with allergies, though, this explosion of new life probably inspires more dread tha

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  • 04:17 Popular 3 Tips To Boost Your Confidence

    3 Tips To Boost Your Confidence

    1,001 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/3-tips-to-boost-your-confidence-ted-ed Lesson made in partnership with the Always #LikeAGirl campaign, animation by Kozmonot Animation Studio. When faced with a big challenge where potential failure seems to lur

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  • 04:07 Why do competitors open their stores next to one another? - Jac de Haan

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

    606 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

  • 05:11 Popular Where do superstitions come from? - Stuart Vyse

    Where do superstitions come from? - Stuart Vyse

    864 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/where-do-superstitions-come-from-stuart-vyse Are you afraid of black cats? Would you open an umbrella indoors? How do you feel about the number 13? Whether or not you believe in them, you’re probably familiar wi

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  • 05:56 Popular How to recognize a dystopia - Alex Gendler

    How to recognize a dystopia - Alex Gendler

    781 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/how-to-recognize-a-dystopia-alex-gendler The genre of dystopia – the ‘not good place’– has captured the imaginations of artists and audiences alike for centuries. But why do we bother with all this pessimism? Al

  • 05:16 Evolution in a Big City

    Evolution in a Big City

    620 views / 0 likes - added

    Using newts, coyotes and mice, Jason Munshi-South shows how animals develop genetic differences in evolution, even within an urban city. "Evolution in a Big City" was animated by the TED-Ed Animation Team (Jeremiah Dickey, Biljana Labovic, Celeste Lai, Ka

  • 08:48 What's invisible? More than you think - John Lloyd

    What's invisible? More than you think - John Lloyd

    696 views / 0 likes - added

    View full lesson on ed.ted.com http://ed.ted.com/lessons/what-s-invisible-more-than-you-think-john-lloyd Gravity. The stars in day. Thoughts. The human genome. Time. Atoms. So much of what really matters in the world is impossible to see. A stunning anima

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

    Why Is Biodiversity So Important? - Kim Preshoff

    1,451 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

  • 02:58 How To Take A Great Picture - Carolina Molinari

    How To Take A Great Picture - Carolina Molinari

    641 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/how-to-take-a-great-picture-carolina-molinari Have you ever looked at your camera and wondered what all of those buttons actually do? For manual photography, the aperture, shutter speed and ISO sensitivity can a

  • 05:49 The Real Origin of the Franchise - Sir Harold Evans

    The Real Origin of the Franchise - Sir Harold Evans

    505 views / 0 likes - added

    View full lesson on TED-Ed BETA: http://ed.ted.com/lessons/the-real-origin-of-the-franchise One of the most successful business models is the franchise, but it didn't originate with McDonald's. Sir Harold Evans, the author of They Made America, describes

  • 03:37 Popular The Time Value Of Money - German Nande

    The Time Value Of Money - German Nande

    919 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/how-to-calculate-the-future-value-of-your-cash-german-nande We've all heard the phrase "Time is money." But what do these two things actually have to do with one another? German Nande explains the math behind in

  • 04:36 Popular Why are sharks so awesome?

    Why are sharks so awesome?

    1,806 views / 12 likes - added

    View full lesson: http://ed.ted.com/lessons/why-are-sharks-so-awesome-tierney-thys Sharks have been celebrated as powerful gods by some native cultures. And today, sharks are recognized as apex predators of the world’s ocean. What is it that makes these f

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  • 05:06 Popular The first asteroid ever discovered - Carrie Nugent

    The first asteroid ever discovered - Carrie Nugent

    838 views / 1 likes - added

    Check out all of TED-Ed's book recommendations: http://ed.ted.com/books View full lesson: https://ed.ted.com/lessons/the-first-asteroid-ever-discovered-carrie-nugent Over the course of history, we’ve discovered hundreds of thousands of asteroids. But how

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  • 05:12 Popular How Do Hard Drives Work? - Kanawat Senanan

    How Do Hard Drives Work? - Kanawat Senanan

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    View full lesson: http://ed.ted.com/lessons/how-do-hard-drives-work-kanawat-senanan The modern hard drive is an object that can likely hold more information than your local library. But how does it store so much information in such a small space? Kanawat

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  • 05:05 Popular How Computer Memory Works - Kanawat Senanan

    How Computer Memory Works - Kanawat Senanan

    1,743 views / 3 likes - added

    View full lesson: http://ed.ted.com/lessons/how-computer-memory-works-kanawat-senanan In many ways, our memories make us who we are, helping us remember our past, learn and retain skills, and plan for the future. And for the computers that often act as ex

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  • 05:00 Music as a language - Victor Wooten

    Music as a language - Victor Wooten

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    View full lesson: http://ed.ted.com/lessons/victor-wooten-music-as-a-language Music is a powerful communication tool--it causes us to laugh, cry, think and question. Bassist and five-time Grammy winner, Victor Wooten, asks us to approach music the same wa

  • 04:29 Popular Why Is Yawning Contagious? - Claudia Aguirre

    Why Is Yawning Contagious? - Claudia Aguirre

    755 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/why-is-yawning-contagious-claudia-aguirre *Yaaawwwwwn* Did just reading the word make you feel like yawning yourself? Known as contagious yawning, the reasons behind this phenomenon have been attributed to both

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  • 04:08 Popular What can you learn from ancient skeletons? - Farnaz Khatibi

    What can you learn from ancient skeletons? - Farnaz Khatibi

    1,091 views / 2 likes - added

    View full lesson: http://ed.ted.com/lessons/what-can-you-learn-from-ancient-skeletons-farnaz-khatibi Ancient skeletons can tell us a great deal about the past, including the age, gender and even the social status of its former owner. But how can we know a

  • 05:25 Popular What are gravitational waves? - Amber L. Stuver

    What are gravitational waves? - Amber L. Stuver

    1,195 views / 0 likes - added

    Check out all of TED-Ed's book recommendations: http://ed.ted.com/books Check out Neil deGrasse Tyson's "Astrophysics for People in a Hurry": https://shop.ed.ted.com/collections/ted-ed-book-recommendations/products/astrophysics-for-people-in-a-hurry View

  • 04:31 Popular Real Life Sunken Cities - Peter Campbell

    Real Life Sunken Cities - Peter Campbell

    815 views / 3 likes - added

    View full lesson: http://ed.ted.com/lessons/real-life-sunken-cities-peter-campbell Though people are most familiar with Plato’s fictional Atlantis, many real underwater cities actually exist. Peter Campbell explains how sunken cities are studied by scient

  • 05:32 What

    What

    480 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/what-orwellian-really-means-noah-tavlin If you’ve watched the news or followed politics, chances are you’ve heard the term Orwellian thrown around in one context or another. But have you ever stopped to think ab

  • 06:38 Popular The Surprising (and Invisible) Signatures Of Sea Creatures - Kakani Katija

    The Surprising (and Invisible) Signatures Of Sea Creatures - Kakani Katija

    745 views / 1 likes - added

    View full lesson: https://ed.ted.com/lessons/the-surprising-and-invisible-signatures-of-sea-creatures-kakani-katija On land, animals leave footprints that tell us a lot about their size, form and capabilities. Marine organisms do this too, but these footp

  • 05:22 Popular How Science Fiction Can Help Predict The Future - Roey Tzezana

    How Science Fiction Can Help Predict The Future - Roey Tzezana

    760 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/how-science-fiction-can-help-predict-the-future-roey-tzezana Would you like to know what’s in our future? What’s going to happen to humanity tomorrow, next year, or even a millennium from now? Well, you’re not a

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

    I'm Batman - Amy Wray

    907 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

  • 04:09 Popular Are Spotty Fruits And Vegetables Safe To Eat? - Elizabeth Brauer

    Are Spotty Fruits And Vegetables Safe To Eat? - Elizabeth Brauer

    889 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/are-spotty-fruits-and-vegetables-safe-to-eat-elizabeth-brauer In 2010, 30 billion dollars worth of fruits and vegetables were wasted by American retailers and shoppers, in part because of cosmetic problems and p

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  • 05:04 What Makes Something

    What Makes Something

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    View full lesson: http://ed.ted.com/lessons/what-makes-something-kafkaesque-noah-tavlin The term Kafkaesque has entered the vernacular to describe unnecessarily complicated and frustrating experiences, especially with bureaucracy. But does standing in a l

  • 03:56 Popular Poison Vs. Venom: What's The Difference? - Rose Eveleth

    Poison Vs. Venom: What's The Difference? - Rose Eveleth

    915 views / 2 likes - added

    View full lesson: http://ed.ted.com/lessons/venom-vs-poison-what-s-the-difference-rose-eveleth Would you rather be bitten by a venomous rattlesnake or touch a poisonous dart frog? While both of these animals are capable of doing some serious damage to the

  • 04:35 Popular What Would Happen If You Didn’t Sleep? - Claudia Aguirre

    What Would Happen If You Didn’t Sleep? - Claudia Aguirre

    985 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/what-would-happen-if-you-didn-t-sleep-claudia-aguirre In the United States, it’s estimated that 30 percent of adults and 66 percent of adolescents are regularly sleep-deprived. This isn’t just a minor inconvenie

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  • 04:23 Popular How Do Animals See In The Dark? - Anna Stöckl

    How Do Animals See In The Dark? - Anna Stöckl

    865 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/how-do-animals-see-in-the-dark-anna-stockl To human eyes, the world at night is a formless canvas of grey. Many nocturnal animals, on the other hand, experience a rich and varied world, bursting with details, sh

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  • 03:51 How do cancer cells behave differently from healthy ones? - George Zaidan

    How do cancer cells behave differently from healthy ones? - George Zaidan

    661 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/how-do-cancer-cells-behave-differently-from-healthy-ones-george-zaidan How do cancer cells grow? How does chemotherapy fight cancer (and cause negative side effects)? The answers lie in cell division. George Zai

  • 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

    950 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

  • 04:40 Popular How Cosmic Rays Help Us Understand The Universe - Veronica Bindi

    How Cosmic Rays Help Us Understand The Universe - Veronica Bindi

    704 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/how-cosmic-rays-help-us-understand-the-universe-veronica-bindi We only know 4% of what the universe is made up of. Can we also know what lies beyond our galaxy ... and if there are undiscovered forms of matter?

  • 04:25 Popular The genius of Mendeleev's periodic table - Lou Serico

    The genius of Mendeleev's periodic table - Lou Serico

    2,040 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/the-genius-of-mendeleev-s-periodic-table-lou-serico The elements had been listed and carefully arranged before Dmitri Mendeleev. They had even been organized by similar properties before. So why is Mendeelev's p

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  • 05:44 Popular Where do new words come from? - Marcel Danesi

    Where do new words come from? - Marcel Danesi

    748 views / 0 likes - added

    Check out the Mysteries of Vernacular series: https://ed.ted.com/mysteries-of-vernacular View full lesson: https://ed.ted.com/lessons/where-do-new-words-come-from-marcel-danesi There are over 170,000 words currently in use in the English language. Yet eve

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  • 05:43 Popular What Does It Mean To Be A Refugee? - Benedetta Berti And Evelien Borgman

    What Does It Mean To Be A Refugee? - Benedetta Berti And Evelien Borgman

    789 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/what-does-it-mean-to-be-a-refugee-benedetta-berti-and-evelien-borgman About 60 million people around the globe have been forced to leave their homes to escape war, violence and persecution. The majority have bec

  • 05:53 Popular How Magellan circumnavigated the globe - Ewandro Magalhaes

    How Magellan circumnavigated the globe - Ewandro Magalhaes

    812 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/how-magellan-circumnavigated-the-globe-ewandro-magalhaes On September 6, 1522, the "Victoria" sailed into harbor in southern Spain. The battered vessel and its 18 sailors were all that remained of a fleet that h

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  • 05:04 Popular The Benefits Of A Bilingual Brain - Mia Nacamulli

    The Benefits Of A Bilingual Brain - Mia Nacamulli

    1,303 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/how-speaking-multiple-languages-benefits-the-brain-mia-nacamulli It’s obvious that knowing more than one language can make certain things easier — like traveling or watching movies without subtitles. But are the

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  • 11:10 Popular The Five Major World Religions - John Bellaimey

    The Five Major World Religions - John Bellaimey

    855 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/the-five-major-world-religions-john-bellaimey It's perfectly human to grapple with questions, like 'Where do we come from?' and 'How do I live a life of meaning?' These existential questions are central to the f

  • 03:29 A Poetic Experiment: Walt Whitman, Interpreted By Three Animators - Justin Moore

    A Poetic Experiment: Walt Whitman, Interpreted By Three Animators - Justin Moore

    658 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/a-poetic-experiment-walt-whitman-interpreted-by-three-animators-justin-moore Take a journey through Walt Whitman's poem 'A Noiseless Patient Spider' with the help of three animators who each used a different ani

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

    How Brass Instruments Work - Al Cannon

    884 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

  • 02:55 If Matter Falls Down, Does Antimatter Fall Up? - Chloé Malbrunot

    If Matter Falls Down, Does Antimatter Fall Up? - Chloé Malbrunot

    647 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/if-matter-falls-down-does-antimatter-fall-up-chloe-malbrunot Like positive and negative, or debit and credit, matter and antimatter are equal and opposite. So if matter falls down, does antimatter fall up? Chloé

  • 04:35 Popular How People Rationalize Fraud - Kelly Richmond Pope

    How People Rationalize Fraud - Kelly Richmond Pope

    965 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/how-people-rationalize-fraud-kelly-richmond-pope If you ask people whether they think stealing is wrong, most of them would answer yes. And yet, in 2013, organizations all over the world lost an estimated total

  • 06:08 Popular Big Data - Tim Smith

    Big Data - Tim Smith

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    View full lesson: http://ed.ted.com/lessons/exploration-on-the-big-data-frontier-tim-smith There is a mind-boggling amount of data floating around our society. Physicists at CERN have been pondering how to store and share their ever more massive data for

  • 03:57 What Color Is Tuesday? Exploring Synesthesia - Richard E. Cytowic

    What Color Is Tuesday? Exploring Synesthesia - Richard E. Cytowic

    607 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/what-color-is-tuesday-exploring-synesthesia-richard-e-cytowic How does one experience synesthesia -- the neurological trait that combines two or more senses? Synesthetes may taste the number 9 or attach a color

  • 04:41 Popular The history of chocolate - Deanna Pucciarelli

    The history of chocolate - Deanna Pucciarelli

    1,081 views / 2 likes - added

    View full lesson: http://ed.ted.com/lessons/the-history-of-chocolate-deanna-pucciarelli If you can’t imagine life without chocolate, you’re lucky you weren’t born before the 16th century. Until then, chocolate only existed as a bitter, foamy drink in Meso

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  • 04:46 Popular Gravity And The Human Body - Jay Buckey

    Gravity And The Human Body - Jay Buckey

    1,170 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/gravity-and-the-human-body-jay-buckey Our bodies function necessarily under the presence of gravity; how blood pumps, a sense of balance and bone growth are all due to life in a world where gravity is an inescap

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

    A Different Way To Visualize Rhythm - John Varney

    948 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

  • 05:15 Popular What causes kidney stones? - Arash Shadman

    What causes kidney stones? - Arash Shadman

    1,355 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/what-causes-kidney-stones-arash-shadman The biggest kidney stone on record weighed more than a kilogram and was 17 centimeters in diameter. The patient didn’t actually swallow a stone the size of a coconut; kidn

  • 04:58 What Happens When Continents Collide? - Juan D. Carrillo

    What Happens When Continents Collide? - Juan D. Carrillo

    661 views / 2 likes - added

    View full lesson: http://ed.ted.com/lessons/what-happens-when-continents-collide-juan-d-carrillo Tens of millions of years ago, plate tectonics set North and South America on an unavoidable collision course that would change the face of the Earth and spel

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  • 05:35 Popular Dark matter: The matter we can't see - James Gillies

    Dark matter: The matter we can't see - James Gillies

    1,046 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/dark-matter-the-matter-we-can-t-see-james-gillies The Greeks had a simple and elegant formula for the universe: just earth, fire, wind, and water. Turns out there's more to it than that -- a lot more. Visible ma

  • 05:00 Why do airlines sell too many tickets? - Nina Klietsch

    Why do airlines sell too many tickets? - Nina Klietsch

    649 views / 0 likes - added

    View full lesson on ed.ted.com: http://ed.ted.com/lessons/why-do-airlines-sell-too-many-tickets-nina-klietsch Have you ever sat in a doctor’s office for hours, despite having an appointment? Has a hotel turned down your reservation because it’s full? Have

  • 03:59 Popular Why Do Honeybees Love Hexagons? - Zack Patterson And Andy Peterson

    Why Do Honeybees Love Hexagons? - Zack Patterson And Andy Peterson

    839 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/why-do-honeybees-love-hexagons-zack-patterson-and-andy-peterson Honeybees are some of nature's finest mathematicians. Not only can they calculate angles and comprehend the roundness of the earth, these smart ins

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  • 06:07 Popular How Do Schools Of Fish Swim In Harmony? - Nathan S. Jacobs

    How Do Schools Of Fish Swim In Harmony? - Nathan S. Jacobs

    891 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/how-do-schools-of-fish-swim-in-harmony-nathan-s-jacobs How do schools of fish swim in harmony? How do the tiny cells in your brain give rise to the complex thoughts, memories, and consciousness that are you? Odd

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  • 03:49 Popular How folding paper can get you to the moon - Adrian Paenza

    How folding paper can get you to the moon - Adrian Paenza

    949 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/how-folding-paper-can-get-you-to-the-moon Can folding a piece of paper 45 times get you to the moon? By seeing what happens when folding just one piece of paper, we see the unbelievable potential of exponential

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  • 05:09 Popular The myth of Icarus and Daedalus - Amy Adkins

    The myth of Icarus and Daedalus - Amy Adkins

    957 views / 0 likes - added

    View full lesson: ed.ted.com/lessons/the-myth-of-icarus-and-daedalus-amy-adkins In mythological ancient Greece, Icarus flew above Crete on wings made from wax and feathers, defying the laws of man and nature. To witnesses on the ground, he looked like a g

  • 05:07 Popular Check your intuition: The birthday problem - David Knuffke

    Check your intuition: The birthday problem - David Knuffke

    885 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/check-your-intuition-the-birthday-problem-david-knuffke Imagine a group of people. How big do you think the group would have to be before there’s more than a 50% chance that two people in the group have the same

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  • 04:51 Popular How Ancient Art Influenced Modern Art - Felipe Galindo

    How Ancient Art Influenced Modern Art - Felipe Galindo

    1,290 views / 2 likes - added

    View full lesson: http://ed.ted.com/lessons/how-ancient-art-influenced-modern-art-felipe-galindo The term modern art sounds like it means art that is popular now, but the style actually originated over 150 years ago and includes artists like Picasso, Mati

  • 05:11 Popular Aphasia: The disorder that makes you lose your words - Susan Wortman-Jutt

    Aphasia: The disorder that makes you lose your words - Susan Wortman-Jutt

    713 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/aphasia-the-disorder-that-makes-you-lose-your-words-susan-wortman-jutt Language is an essential part of our lives that we often take for granted. But, if the delicate web of language networks in your brain becam

  • 03:32 Become a slam poet in five steps - Gayle Danley

    Become a slam poet in five steps - Gayle Danley

    611 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/become-a-slam-poet-in-five-steps-gayle-danley With enough passion and practice, becoming a slam poet is within your reach. Explore a distant memory on paper, then read it out loud. Edit. Try reading it out loud

  • 04:23 Popular How do animals see in the dark?

    How do animals see in the dark?

    765 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/how-do-animals-see-in-the-dark-anna-stockl To human eyes, the world at night is a formless canvas of grey. Many nocturnal animals, on the other hand, experience a rich and varied world, bursting with details, sh

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  • 05:02 Popular Population Pyramids: Powerful Predictors Of The Future - Kim Preshoff

    Population Pyramids: Powerful Predictors Of The Future - Kim Preshoff

    931 views / 1 likes - added

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  • 04:23 Popular The Sun’s Surprising Movement Across The Sky - Gordon Williamson

    The Sun’s Surprising Movement Across The Sky - Gordon Williamson

    799 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/the-sun-s-surprising-movement-across-the-sky-gordon-williamson Suppose you placed a camera at a fixed position, took a picture of the sky at the same time every day for an entire year, and overlaid all of the ph

  • 05:04 Popular Is Time Travel Possible? - Colin Stuart

    Is Time Travel Possible? - Colin Stuart

    744 views / 2 likes - added

    View full lesson: http://ed.ted.com/lessons/time-travel-and-einstein-s-special-relativity-colin-stuart Time travel is a staple of science fiction stories, but is it actually possible? It turns out nature does allow a way of bending time, an exciting possi

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  • 04:10 Popular The Hidden Meanings Of Yin And Yang - John Bellaimey

    The Hidden Meanings Of Yin And Yang - John Bellaimey

    1,027 views / 3 likes - added

    View full lesson here: http://ed.ted.com/lessons/the-hidden-meanings-of-yin-and-yang-john-bellaimey The ubiquitous yin-yang symbol holds its roots in Taoism/Daoism, a Chinese religion and philosophy. The yin, the dark swirl, is associated with shadows, fe

  • 04:55 Popular The mathematics of sidewalk illusions - Fumiko Futamura

    The mathematics of sidewalk illusions - Fumiko Futamura

    796 views / 0 likes - added

    View full lesson here: http://ed.ted.com/lessons/the-mathematics-of-sidewalk-illusions-fumiko-futamura Have you ever come across an oddly stretched image on the sidewalk, only to find that it looks remarkably realistic if you stand in exactly the right sp

  • 04:28 Popular This Is Sparta: Fierce Warriors Of The Ancient World - Craig Zimmer

    This Is Sparta: Fierce Warriors Of The Ancient World - Craig Zimmer

    1,564 views / 4 likes - added

    View full lesson: http://ed.ted.com/lessons/this-is-sparta-fierce-warriors-of-the-ancient-world-craig-zimmer In ancient Greece, violent internal conflict between border neighbors and war with foreign invaders was a way of life, and Greeks were considered

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  • 05:48 Popular The secrets of Mozart’s “Magic Flute” - Joshua Borths

    The secrets of Mozart’s “Magic Flute” - Joshua Borths

    804 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/the-secrets-of-mozart-s-magic-flute-joshua-borths Wolfgang Amadeus Mozart’s “Die Zauberflöte” (“The Magic Flute”) is widely regarded as one of the most influential operas in history. And while it may seem like a

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  • 05:21 Popular Cell membranes are way more complicated than you think - Nazzy Pakpour

    Cell membranes are way more complicated than you think - Nazzy Pakpour

    1,386 views / 1 likes - added

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  • 05:23 Why is it so hard to cure cancer? - Kyuson Yun

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    664 views / 1 likes - added

    Download a free audiobook and support TED-Ed's nonprofit mission: http://adbl.co/2gauxND Check out Siddhartha Mukherjee's "The Emperor of All Maladies": https://shop.ed.ted.com/collections/ted-ed-book-recommendations/products/the-emperor-of-all-maladies-a

  • 05:59 Why should you read James Joyce's "Ulysses"? - Sam Slote

    Why should you read James Joyce's "Ulysses"? - Sam Slote

    661 views / 1 likes - added

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  • 03:27 Popular How To Set The Table - Anna Post

    How To Set The Table - Anna Post

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  • 05:32 Popular How did Polynesian wayfinders navigate the Pacific Ocean? - Alan Tamayose and Shantell De Silva

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    767 views / 1 likes - added

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  • 04:53 The Case Of The Missing Fractals - Alex Rosenthal And George Zaidan

    The Case Of The Missing Fractals - Alex Rosenthal And George Zaidan

    683 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/the-case-of-the-missing-fractals-alex-rosenthal-and-george-zaidan A bump on the head, a mysterious femme fatale and a strange encounter on a windswept peak all add up to a heck of a night for Manny Brot, Private

  • 04:16 How One French Poet Combined Poetry And Visual Art - Geneviève Emy

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    650 views / 0 likes - added

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  • 04:30 Popular How high can you count on your fingers?

    How high can you count on your fingers?

    1,299 views / 0 likes - added

    View full lesson: https://ed.ted.com/lessons/how-high-can-you-count-on-your-fingers-spoiler-much-higher-than-10-james-tanton How high can you count on your fingers? It seems like a question with an obvious answer. After all, most of us have ten fingers --

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  • 05:31 Popular Why don't perpetual motion machines ever work? - Netta Schramm

    Why don't perpetual motion machines ever work? - Netta Schramm

    776 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/why-don-t-perpetual-motion-machines-ever-work-netta-schramm Perpetual motion machines — devices that can do work indefinitely without any external energy source — have captured many inventors’ imaginations becau

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  • 12:08 Questions No One Knows the Answers to

    Questions No One Knows the Answers to

    680 views / 2 likes - added

    In the first of a new TED-Ed series designed to catalyze curiosity, TED Curator Chris Anderson shares his boyhood obsession with quirky questions that seem to have no answers. (Introducing the series "Questions no one knows the answers to") "Questions No

  • 05:00 Popular From DNA To Silly Putty, The Diverse World Of Polymers - Jan Mattingly

    From DNA To Silly Putty, The Diverse World Of Polymers - Jan Mattingly

    754 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/from-dna-to-silly-putty-the-diverse-world-of-polymers-jan-mattingly You are made of polymers, and so are trees and telephones and toys. A polymer is a long chain of identical molecules (or monomers) with a range

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  • 04:13 Why Do Americans And Canadians Celebrate Labor Day? - Kenneth C. Davis

    Why Do Americans And Canadians Celebrate Labor Day? - Kenneth C. Davis

    665 views / 2 likes - added

    View full lesson: http://ed.ted.com/lessons/why-do-americans-and-canadians-celebrate-labor-day-kenneth-c-davis In the United States and Canada, the first Monday of September is a federal holiday, Labor Day. Originally celebrated in New York City's Union S

  • 03:51 Popular Dead Stuff: The Secret Ingredient In Our Food Chain - John C. Moore

    Dead Stuff: The Secret Ingredient In Our Food Chain - John C. Moore

    1,954 views / 3 likes - added

    View full lesson: http://ed.ted.com/lessons/dead-stuff-the-secret-ingredient-in-our-food-chain-john-c-moore When you picture the lowest levels of the food chain, you might imagine herbivores happily munching on lush, living green plants. But this idyllic

  • 04:50 The Fundamentals Of Space-time: Part 2 - Andrew Pontzen And Tom Whyntie

    The Fundamentals Of Space-time: Part 2 - Andrew Pontzen And Tom Whyntie

    623 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/the-fundamentals-of-space-time-part-2-andrew-pontzen-and-tom-whyntie View part 1 here: http://ed.ted.com/lessons/the-fundamentals-of-space-time-part-1-andrew-pontzen-and-tom-whyntie View part 3 here: http://ed.t

  • 04:58 Popular How the world's first subway system was built - Christian Wolmar

    How the world's first subway system was built - Christian Wolmar

    810 views / 0 likes - added

    Learn more about our student voice program, TED-Ed Clubs: http://bit.ly/2J5g4eS View full lesson: https://ed.ted.com/lessons/how-the-world-s-first-subway-system-was-built-christian-wolmar It was the dawn of 1863, and London's not-yet-opened subway system

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  • 03:29 Popular Basic Math: Dividing Fractions

    Basic Math: Dividing Fractions

    1,127 views / 0 likes - added

    Basic Math: Dividing Fractions. In this video, I do two examples. In the first I divide a whole number by a fraction and in the second I divide a fraction by a fraction. For more free math videos, visithttp://JustMathTutoring.com

  • 03:27 The Fundamentals Of Space-time: Part 3 - Andrew Pontzen And Tom Whyntie

    The Fundamentals Of Space-time: Part 3 - Andrew Pontzen And Tom Whyntie

    648 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/the-fundamentals-of-space-time-part-3-andrew-pontzen-and-tom-whyntie View part 1: http://ed.ted.com/lessons/the-fundamentals-of-space-time-part-1-andrew-pontzen-and-tom-whyntie View part 2: http://ed.ted.com/les

  • 04:43 The world’s most mysterious book - Stephen Bax

    The world’s most mysterious book - Stephen Bax

    536 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/the-world-s-most-mysterious-book-stephen-bax Deep inside Yale's Beinecke Rare Book and Manuscript Library lies a 240 page tome. Recently carbon dated to around 1420, its pages feature looping handwriting and han

  • 04:52 Popular What’s so great about the Great Lakes? - Cheri Dobbs and Jennifer Gabrys

    What’s so great about the Great Lakes? - Cheri Dobbs and Jennifer Gabrys

    857 views / 3 likes - added

    View full lesson: http://ed.ted.com/lessons/what-s-so-great-about-the-great-lakes-cheri-dobbs-and-jennifer-gabrys The North American Great Lakes — Huron, Ontario, Michigan, Erie, and Superior — are so big that they border 8 states and contain 23 quadrilli

  • 01:34 Periodic Table Of Lessons

    Periodic Table Of Lessons

    604 views / 0 likes - added

    See our collaboration with TED-Ed here: http://ed.ted.com/periodic-videos More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School

  • 05:06 Popular The Fundamentals Of Space-time: Part 1 - Andrew Pontzen And Tom Whyntie

    The Fundamentals Of Space-time: Part 1 - Andrew Pontzen And Tom Whyntie

    1,027 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/the-fundamentals-of-space-time-part-1-andrew-pontzen-and-tom-whyntie View part 2: http://ed.ted.com/lessons/the-fundamentals-of-space-time-part-2-andrew-pontzen-and-tom-whyntie View part 3 here: http://ed.ted.co

  • 01:46 Visualizing division by fractions

    Visualizing division by fractions

    685 views / 0 likes - added

    3D animation giving an intuitive understanding of what it means to divide by a fraction.

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

    At What Moment Are You Dead? - Randall Hayes

    710 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....

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

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

    931 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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  • 04:52 What Did Democracy Really Mean In Athens? - Melissa Schwartzberg

    What Did Democracy Really Mean In Athens? - Melissa Schwartzberg

    625 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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  • 04:46 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

    1,072 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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  • 04:14 Popular What Causes Bad Breath? - Mel Rosenberg

    What Causes Bad Breath? - Mel Rosenberg

    820 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...

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

    How Do The Lungs Work? - Emma Bryce

    929 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...

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

    How Do You Know You Exist? - James Zucker

    1,279 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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  • 04:29 Popular DNA: The Book Of You - Joe Hanson

    DNA: The Book Of You - Joe Hanson

    987 views / 0 likes - added

    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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  • 05:13 Popular Can You Solve

    Can You Solve

    918 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/can-you-solve-einstein-s-riddle-dan-van-der-vieren View all the clues here: http://ed.ted.com/lessons/can-you-solve-einstein-s-riddle-dan-van-der-vieren#digdeeper Before he turned physics upside down, a young Al

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

    Is Math Discovered Or Invented? - Jeff Dekofsky

    617 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...

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

    Why Sitting Is Bad For You - Murat Dalkilinç

    576 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,...

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

    The Language Of Lying - Noah Zandan

    787 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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  • 05:07 Popular Why Are Some People Left-handed? - Daniel M. Abrams

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

    906 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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  • 03:37 Popular How Does The Thyroid Manage Your Metabolism? - Emma Bryce

    How Does The Thyroid Manage Your Metabolism? - Emma Bryce

    761 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...

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

    How To Spot A Counterfeit Bill - Tien Nguyen

    1,685 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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  • 04:58 Popular How Does Your Brain Respond To Pain? - Karen D. Davis

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

    753 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...

  • 03:52 Popular What Gives A Dollar Bill Its Value? - Doug Levinson

    What Gives A Dollar Bill Its Value? - Doug Levinson

    1,122 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/what-gives-a-dollar-bill-its-value-doug-levinson The value of money is determined by how much (or how little) of it is in circulation. But who makes that decision, and how does their choice affect the economy at

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  • 04:12 Popular What Is A Calorie? - Emma Bryce

    What Is A Calorie? - Emma Bryce

    1,170 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/what-is-a-calorie-emma-bryce We hear about calories all the time: How many calories are in this cookie? How many are burned by doing 100 jumping jacks, or long-distance running, or fidgeting? But what is a calor

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

    How Do Vitamins Work? - Ginnie Trinh Nguyen

    1,399 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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  • 05:55 Popular History Vs. Christopher Columbus - Alex Gendler

    History Vs. Christopher Columbus - Alex Gendler

    1,230 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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  • 04:52 Popular Should We Eat Bugs? - Emma Bryce

    Should We Eat Bugs? - Emma Bryce

    947 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...

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

    The Importance Of Focus - Richard St. John

    813 views / 0 likes - added

    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,.

  • 04:49 Popular The breathtaking courage of Harriet Tubman - Janell Hobson

    The breathtaking courage of Harriet Tubman - Janell Hobson

    1,099 views / 9 likes - added

    Download a free audiobook version of "The Underground Railroad" and support TED-Ed's nonprofit mission: https://adbl.co/2LEl0sU Check out our full book recommendation: https://shop.ed.ted.com/collections/ted-ed-book-recommendations/products/the-undergroun

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

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

    1,114 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...

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

    Why Is Ketchup So Hard To Pour? - George Zaidan

    657 views / 0 likes - added

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

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

    982 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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  • 03:55 Popular The Science Of Spiciness - Rose Eveleth

    The Science Of Spiciness - Rose Eveleth

    783 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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  • 05:29 Popular A Brief History Of Melancholy - Courtney Stephens

    A Brief History Of Melancholy - Courtney Stephens

    730 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...

  • 05:07 Popular When will the next ice age happen? - Lorraine Lisiecki

    When will the next ice age happen? - Lorraine Lisiecki

    1,109 views / 0 likes - added

    Learn more about TED-Ed Clubs here: https://ed.ted.com/clubs Check out the TED-Ed Clubs YouTube channel: https://www.youtube.com/channel/UCskU_g7t6b5ecsA1CTS3y9Q View full lesson: https://ed.ted.com/lessons/when-will-the-next-ice-age-happen-lorraine-lisie

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  • 05:39 The original ring of power - Alex Gendler

    The original ring of power - Alex Gendler

    267 views / 0 likes - added

    Download a free audiobook version of The Lord of the Rings: The Fellowship of the Ring and support TED-Ed's nonprofit mission: https://www.audible.com/ted-ed--More than 2,000 years ago, the Greek philosopher Plato recounted the legend of the Ring of Gyges

  • 05:32 Is it dangerous to wake a sleepwalker? - Emmanuel During

    Is it dangerous to wake a sleepwalker? - Emmanuel During

    161 views / 0 likes - added

    Download a free audiobook version of The Midnight Library and support TED-Ed's nonprofit mission: https://www.audible.com/ted-ed--Mumbling fantastical gibberish; devouring blocks of cheese in the nude; peeing in places that arent toilets; and jumping out

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

    Can Robots Be Creative? - Gil Weinberg

    647 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...

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

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

    838 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...

  • 04:11 Popular What Are Stem Cells? - Craig A. Kohn

    What Are Stem Cells? - Craig A. Kohn

    2,285 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/what-are-stem-cells-craig-a-kohn Is personalized medicine for individual bodies in our future? Possibly -- with the use of stem cells, undifferentiated cells with the power to become any tissue in our bodies. Cr

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  • 05:04 Popular Whoever builds something here will be rich beyond measure - Fabio Pacucci

    Whoever builds something here will be rich beyond measure - Fabio Pacucci

    1,998 views / 0 likes - added

    Download a free audiobook version of Project Hail Mary" and support TED-Ed's nonprofit mission: https://www.audible.com/ted-ed--Since the 1950s, governments, companies, and researchers have been planting flags among the stars. But while it might seem like

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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

    978 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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  • 04:37 Popular Will Future Spacecraft Fit In Our Pockets? - Dhonam Pemba

    Will Future Spacecraft Fit In Our Pockets? - Dhonam Pemba

    857 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/will-future-spaceships-fit-in-our-pockets-dhonam-pemba When you picture a rocket, you might imagine a giant ship carrying lots of fuel, people and supplies. But what if the next wave of spacecraft were small eno

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

    The Colossal Consequences Of Supervolcanoes - Alex Gendler

    847 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,...

  • 04:31 How do you know you're not dreaming? - Daniel Gregory

    How do you know you're not dreaming? - Daniel Gregory

    204 views / 0 likes - added

    Download a free audiobook version of The Sandman and support TED-Ed's nonprofit mission: https://www.audible.com/ted-ed--Bizarre things happen in dreams: you fly, or conjure an all-you-can-eat buffet out of thin air, or get chased by witches through the h

  • 04:58 How long should your naps be? - Sara C. Mednick

    How long should your naps be? - Sara C. Mednick

    290 views / 1 likes - added

    Download a free audiobookversionof "Take a Nap: Change Your Life" by Sara Mednick or Matthew Walker's "Why We Sleep" and support TED-Ed's nonprofit mission:https://www.audible.com/ted-ed--Your eyes get heavy and gradually close But wait! Its only lunch ti

  • 05:11 Popular How Do Carbohydrates Impact Your Health? - Richard J. Wood

    How Do Carbohydrates Impact Your Health? - Richard J. Wood

    1,475 views / 1 likes - added

    View full lesson: http://ed.ted.com/lessons/how-do-carbohydrates-impact-your-health-richard-j-wood The things we eat and drink on a daily basis can impact our health in big ways. Too many carbohydrates, for instance, can lead to insulin resistance, which

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

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

    913 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...

  • 05:11 The Microbial Jungles All Over The Place (and You) - Scott Chimileski And Roberto Kolter

    The Microbial Jungles All Over The Place (and You) - Scott Chimileski And Roberto Kolter

    682 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/the-microbial-jungles-all-over-the-place-and-you-scott-chimileski-and-roberto-kolter As we walk through our daily environments, we’re surrounded by exotic creatures that are too small to see with the naked eye.

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  • 03:46 Popular The Paradox Of Value - Akshita Agarwal

    The Paradox Of Value - Akshita Agarwal

    881 views / 0 likes - added

    View full lesson: http://ed.ted.com/lessons/the-paradox-of-value-akshita-agarwal Imagine you’re on a game show and you can choose between two prizes: a diamond … or a bottle of water. It’s an easy choice – the diamonds are more valuable. But if given the

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  • 05:30 Popular Is DNA the future of data storage? - Leo Bear-McGuinness

    Is DNA the future of data storage? - Leo Bear-McGuinness

    984 views / 0 likes - added

    Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/is-dna-the-future-of-data-storage-leo-bear-mcguinness In the event of a nuclear fallout, every piece of digital and written information could all be los

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  • 05:42 Popular What soccer can teach us about freedom | Marc Bamuthi Joseph

    What soccer can teach us about freedom | Marc Bamuthi Joseph

    710 views / 0 likes - added

    "Soccer is the only thing on this planet that we can all agree to do together," says theater maker and TED Fellow Marc Bamuthi Joseph. Through his performances and an engagement initiative called "Moving and Passing," Joseph combines music, dance and socc

  • 05:40 The Boltzmann brain paradox - Fabio Pacucci

    The Boltzmann brain paradox - Fabio Pacucci

    176 views / 1 likes - added

    Download a free audiobook version of The 7 1/2 Deaths of Evelyn Hardcastle and support TED-Ed's nonprofit mission: https://www.audible.com/ted-ed--How do you know youre a person who has lived your life, rather than a just-formed brain full of artificial m

  • 04:28 Popular How Do Dogs Smell

    How Do Dogs Smell

    1,405 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...

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

    How Optical Illusions Trick Your Brain - Nathan S. Jacobs

    1,976 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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  • 14:27 How a typeface helped launch Apollo | Douglas Thomas

    How a typeface helped launch Apollo | Douglas Thomas

    394 views / 0 likes - added

    When humanity first landed on the moon in 1969, the typeface Futura was right there with them. In this fascinating history of typography, designer Douglas Thomas shares Futura's role in launching the Apollo 11 spacecraft -- and how it became one of the mo

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

    Why Are Manhole Covers Round? - Marc Chamberland

    663 views / 0 likes - added

    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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  • 05:15 The myth of Jason and the Argonauts - Iseult Gillespie

    The myth of Jason and the Argonauts - Iseult Gillespie

    522 views / 1 likes - added

    Download a free audiobook version of "Circe" and support TED-Ed's nonprofit mission: https://www.audible.com/ted-edCheck out our full book recommendation: https://shop.ed.ted.com/collections/ted-ed-book-recommendations/products/circe--Hercules, the strong

  • 05:30 Popular How long will human impacts last? - David Biello

    How long will human impacts last? - David Biello

    1,764 views / 1 likes - added

    Check out all of TED-Ed's book recommendations: http://ed.ted.com/books Check out David Biello's "The Unnatural World": https://shop.ed.ted.com/collections/ted-ed-book-recommendations/products/the-unnatural-world View full lesson: https://ed.ted.com/lesso

  • 05:16 Does time exist? - Andrew Zimmerman Jones

    Does time exist? - Andrew Zimmerman Jones

    579 views / 0 likes - added

    Download a free audiobook version of "A Brief History of Time" and support TED-Ed's nonprofit mission: https://adbl.co/2NWYjAh Check out our full book recommendation: https://shop.ed.ted.com/collections/ted-ed-book-recommendations/products/a-brief-history

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  • 06:03 How One Piece Of Legislation Divided A Nation - Ben Labaree, Jr.

    How One Piece Of Legislation Divided A Nation - Ben Labaree, Jr.

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    View full lesson: http://ed.ted.com/lessons/the-legislation-that-birthed-the-republican-party-ben-labaree-jr You may think that things are heated in Washington today, but the Kansas-Nebraska Act of 1854 had members of Congress so angry they pulled out the


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