Search Results: "johnny appleseed biography lesson"

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03:52 Popular
How polarity makes water behave strangely - Christina Kleinberg

944 views / 0 likes - added 6 years ago

View full lesson: http://ed.ted.com/lessons/how-polarity-makes-water-behave-strangely-christina-kleinberg Water is both essential and unique. Many of its particular qualities stem from the fact that it consists of two hydrogen atoms and one oxygen, theref
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How To Turn Protest Into Powerful Change - Eric Liu

647 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/how-to-turn-protest-into-powerful-change-eric-liu We live in an age of protest. On campuses, in public squares, on streets and social media, protestors around the world are challenging the status quo. But while
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How to spot a misleading graph - Lea Gaslowitz

847 views / 0 likes - added 6 years ago

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

2,493 views / 1 likes - added 9 years ago

View full lesson: http://ed.ted.com/lessons/is-telekinesis-real-emma-bryce Telekinesis, the ability to manipulate matter with the mind alone, is a trait exhibited by some of the most iconic fictional characters, including Neo, Yoda, and, of course, Carrie
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The Treadmill's Dark And Twisted Past - Conor Heffernan

572 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/the-treadmill-s-dark-and-twisted-past-conor-heffernan The constant thud underneath your feet. The constrained space. The monotony of going nowhere fast. Running on a treadmill can certainly feel like torture, bu
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04:35 Popular
Where Does Gold Come From? - David Lunney

1,319 views / 4 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/where-does-gold-come-from-david-lunney Did you know that gold is extraterrestrial? Instead of arising from our planet’s rocky crust, it was actually cooked up in space and is present on Earth because of cataclys
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How to use rhetoric to get what you want - Camille A. Langston

677 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/how-to-use-rhetoric-to-get-what-you-want-camille-a-langston How do you get what you want, using just your words? Aristotle set out to answer exactly that question over two thousand years ago with a treatise on r
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05:11 Popular
Where do superstitions come from? - Stuart Vyse

879 views / 1 likes - added 7 years ago

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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How Memories Form And How We Lose Them - Catharine Young

920 views / 1 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/how-memories-form-and-how-we-lose-them-catharine-young Think back to a really vivid memory. Got it? Now try to remember what you had for lunch three weeks ago. That second memory probably isn’t as strong—but why
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Pruney Fingers: A Gripping Story - Mark Changizi

790 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/pruney-fingers-a-gripping-story-mark-changizi Why do fingers become pruney when they get wet? Likely, for the same reasons that tires have treads. Mark Changizi examines the evolutionary reasons for pruney finge
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Could A Blind Eye Regenerate? - David Davila

1,328 views / 1 likes - added 9 years ago

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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Ideasthesia: How Do Ideas Feel? - Danko Nikolić

665 views / 0 likes - added 9 years ago

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
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The Great Brain Debate - Ted Altschuler

756 views / 0 likes - added 9 years ago

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
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The Evolution Of The Book - Julie Dreyfuss

754 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/the-evolution-of-the-book-julie-dreyfuss What makes a book a book? Is it just anything that stores and communicates information? Or does it have to do with paper, binding, font, ink, its weight in your hands, th
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05:56 Popular
How to recognize a dystopia - Alex Gendler

818 views / 1 likes - added 7 years ago

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
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Why do we feel nostalgia? - Clay Routledge

515 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/why-do-we-feel-nostalgia-clay-routledge Nostalgia was once considered an illness confined to specific groups of people. Today, people all over the world report experiencing and enjoying nostalgia. But how does n
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How Do Geckos Defy Gravity? - Eleanor Nelsen

805 views / 2 likes - added 9 years ago

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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Why Elephants Never Forget - Alex Gendler

1,121 views / 3 likes - added 9 years ago

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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Birth Of A Nickname - John McWhorter

617 views / 2 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/birth-of-a-nickname-john-mcwhorter Where do nicknames come from? Why are Ellens called Nellie and Edwards Ned? It's all a big misunderstanding from the early days of the English language, a misunderstanding that
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What Is Obesity? - Mia Nacamulli

875 views / 1 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/what-is-obesity-mia-nacamulli Obesity is an escalating global epidemic. It substantially raises the probability of diseases like diabetes, heart disease, stroke, high blood pressure, and cancer. But what is the
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How does your body know what time it is? - Marco A. Sotomayor

821 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/how-does-your-body-know-what-time-it-is-marco-a-sotomayor Being able to sense time helps us do everything from waking and sleeping to knowing precisely when to catch a ball that’s hurtling towards us. And we owe
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Why are sloths so slow? - Kenny Coogan

910 views / 2 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/why-are-sloths-so-slow-kenny-coogan Sloths spend most of their time eating, resting, or sleeping; in fact, they descend from their treetops canopies just once a week, for a bathroom break. How are these creature
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How Do Tornadoes Form? - James Spann

2,932 views / 28 likes - added 9 years ago

View full lesson: http://ed.ted.com/lessons/how-do-tornadoes-form-james-spann Tornadoes are the most violent storms on Earth, with wind velocities that can exceed 200 miles per hour. How do these terrifying cyclones form? Meteorologist James Spann sheds l
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What Light Can Teach Us About The Universe - Pete Edwards

665 views / 1 likes - added 9 years ago

View full lesson: http://ed.ted.com/lessons/what-light-can-teach-us-about-the-universe-pete-edwards Humanity has long been looking at the universe and asking the big questions: How did it begin? How will it end? Cosmologists are searching hard for the ans
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Overcoming Obstacles - Steven Claunch

1,024 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/there-s-no-dishonor-in-having-a-disability-steven-claunch When faced with a bump in the road, sometimes we forget we have a choice: overcome the obstacle or let it overcome you. Steven Claunch, who was born with
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Why Do Cats Act So Weird? - Tony Buffington

1,701 views / 1 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/why-do-cats-act-so-weird-tony-buffington They’re cute, they’re lovable, and judging by the 26 billion views on over 2 million YouTube videos of them, one thing is certain: cats are very entertaining. But their s
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04:56 Popular
How Interpreters Juggle Two Languages At Once - Ewandro Magalhaes

1,403 views / 0 likes - added 8 years ago

View full Lesson: https://ed.ted.com/lessons/how-interpreters-juggle-two-languages-at-once-ewandro-magalhaes Language is complex, and when abstract or nuanced concepts get lost in translation, the consequences may be catastrophic. Given the complexities o
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What's invisible? More than you think - John Lloyd

706 views / 0 likes - added 6 years ago

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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How the bendy straw was invented | Moments of Vision 12 - Jessica Oreck

885 views / 1 likes - added 6 years ago

View full lesson: http://ed.ted.com/lessons/how-the-bendy-straw-was-invented-moments-of-vision-12-jessica-oreck Today, Americans use an estimated 500 million drinking straws every day. But where did the idea for this beloved utensil come from? In the twel
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How To Write Fiction That Comes Alive - Nalo Hopkinson

915 views / 1 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/how-to-write-fiction-that-comes-alive-nalo-hopkinson The point of fiction is to cast a spell, a momentary illusion that you are living in the world of the story. But as a writer, how do you suck your readers int
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Does Grammar Matter? - Andreea S. Calude

925 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/does-grammar-matter-andreea-s-calude It can be hard sometimes, when speaking, to remember all of the grammatical rules that guide us when we’re writing. When is it right to say “the dog and me” and when should i
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04:28 Popular
History vs. Cleopatra - Alex Gendler

1,424 views / 7 likes - added 7 years ago

View full lesson: ed.ted.com/lessons/history-vs-cleopatra-alex-gendler She was the most notorious woman in ancient history, a queen who enraptured not one but two of Rome’s greatest generals. But was she just a skilled seductress – or a great ruler in her
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The philosophy of Stoicism - Massimo Pigliucci

552 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/the-philosophy-of-stoicism-massimo-pigliucci What is the best life we can live? How can we cope with whatever the universe throws at us and keep thriving nonetheless? The ancient Greco-Roman philosophy of Stoici
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Could Comets Be The Source Of Life On Earth? - Justin Dowd

1,599 views / 4 likes - added 9 years ago

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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How Do We Separate The Seemingly Inseparable? - Iddo Magen

673 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/how-do-we-separate-the-inseparable-iddo-magen Your cell phone is mainly made of plastics and metals. It’s easy to appreciate the process by which those elements add up to something so useful. But there’s another
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04:37
Sunlight Is Way Older Than You Think - Sten Odenwald

478 views / 0 likes - added 9 years ago

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
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Why Is Biodiversity So Important? - Kim Preshoff

1,476 views / 2 likes - added 9 years ago

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
03:19 Popular
How Heavy Is Air? - Dan Quinn

1,178 views / 0 likes - added 9 years ago

View full lesson: http://ed.ted.com/lessons/how-heavy-is-air-dan-quinn Too often we think of air as empty space — but compared to a vacuum, air is actually pretty heavy. So, just how heavy is it? And if it's so heavy, why doesn't it crush us? Dan Quinn de
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03:21 Popular
What Does The Pancreas Do? - Emma Bryce

1,744 views / 0 likes - added 9 years ago

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
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What Triggers A Chemical Reaction? - Kareem Jarrah

2,457 views / 3 likes - added 9 years ago

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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How To Take A Great Picture - Carolina Molinari

648 views / 0 likes - added 8 years ago

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
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Should We Be Looking For Life Elsewhere In The Universe? - Aomawa Shields

937 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/should-we-be-looking-for-life-elsewhere-in-the-universe-aomawa-shields As the number of “potentially habitable” planets that astronomers find continues to rise, we seem ever closer to answering the question, “Ar
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05:10 Popular
The power of creative constraints - Brandon Rodriguez

2,116 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/the-power-of-creative-constraints-brandon-rodriguez Imagine you were asked to invent something new. It could be whatever you want, made from anything you choose, in any shape or size. That kind of creative freed
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The Real Origin of the Franchise - Sir Harold Evans

518 views / 0 likes - added 6 years ago

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
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Sugar: Hiding In Plain Sight - Robert Lustig

780 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/sugar-hiding-in-plain-sight-robert-lustig While sugar is easy to spot in candy, soft drinks and ice cream, it also hides out in foods you might not expect -- including peanut butter, pasta sauce and even bologna
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How Mucus Keeps Us Healthy - Katharina Ribbeck

758 views / 2 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/how-mucus-keeps-us-healthy-katharina-ribbeck Your body produces more than a liter of mucus every day, and when you’re sick, it can be hard to miss. But what exactly is mucus? And what does it do, besides making
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When To Use Apostrophes - Laura McClure

738 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/when-to-use-apostrophes-laura-mcclure It’s possessive. It’s often followed by S’s. And it’s sometimes tricky when it comes to its usage. It’s the apostrophe. Laura McClure gives a refresher on when to use apostr
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03:52 Popular
What Gives A Dollar Bill Its Value? - Doug Levinson

1,131 views / 1 likes - added 8 years ago

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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What cameras see that our eyes don't - Bill Shribman

650 views / 0 likes - added 6 years ago

View full lesson: http://ed.ted.com/lessons/what-cameras-see-that-our-eyes-don-t-bill-shribman Our eyes are practically magical, but they cannot see everything. For instance, the naked eye cannot see the moment where all four of a horse's legs are in the
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The Chemistry Of Cold Packs - John Pollard

783 views / 0 likes - added 9 years ago

View full lesson: http://ed.ted.com/lessons/how-do-cold-packs-get-cold-so-fast-john-pollard If you stick water in the freezer, it will take a few hours to freeze into ice. How is it, then, that cold packs go from room temperature to near freezing in mere
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04:54 Popular
The Akune Brothers: Siblings On Opposite Sides Of War - Wendell Oshiro

886 views / 2 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/the-akune-brothers-siblings-on-opposite-sides-of-war-wendell-oshiro There are many stories that can be told about World War II, from the tragic to the inspiring. But perhaps one of the most heart-rending experie
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Defining Cyberwarfare...in Hopes Of Preventing It - Daniel Garrie

698 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/defining-cyberwarfare-in-hopes-of-preventing-it-daniel-garrie Can you imagine a future where wars are fought not with bombs and bullets but computer viruses and pacemaker shutdowns? Cyberware is unique in that i
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The History Of Marriage - Alex Gendler

880 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/the-history-of-marriage-alex-gendler A white, puffy dress. Eternal love. A joint tax return. Marriage means something different to everyone and has changed over time and across cultures. Alex Gendler traces the
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How Do We Know What Color Dinosaurs Were? - Len Bloch

1,216 views / 1 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/how-do-we-know-what-color-dinosaurs-were-len-bloch The microraptor was a four-winged carnivorous dinosaur with iridescent black feathers. But if our information about this dinosaur comes from fossils, how can we
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04:28 Popular
Why are there so many types of apples? - Theresa Doud

847 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/why-are-there-so-many-types-of-apples-theresa-doud Have you ever walked into a grocery store and wondered where all the varieties of apples came from? You might find SnapDragon, Pixie Crunch, Cosmic Crisp, Jazz,
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How Do Scars Form? - Sarthak Sinha

740 views / 2 likes - added 9 years ago

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
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If Superpowers Were Real: Super Strength - Joy Lin

900 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/if-superpowers-were-real-super-strength-joy-lin What if super strength wasn't just the stuff of epic comic book stories? Is it scientifically possible to be super strong? In this series, Joy Lin tackles six supe
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If Superpowers Were Real: Super Speed - Joy Lin

937 views / 1 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/if-superpowers-were-real-super-speed-joy-lin What if super speed wasn't just the stuff of epic comic book stories? Is it scientifically possible to be super speedy? In this series, Joy Lin tackles six superpower
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Mysteries Of Vernacular: Gorgeous - Jessica Oreck And Rachael Teel

570 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/mysteries-of-vernacular-gorgeous-jessica-oreck-and-rachael-teel From whirlpools and ravines to superlative beauty, what is the trajectory of the word gorgeous? Jessica Oreck and Rachael Teel reveal the surprisin
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How Smart Are Orangutans? - Lu Gao

734 views / 1 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/how-smart-are-orangutans-lu-gao Along with humans, orangutans belong to the Hominidae family tree, which stretches back 14 million years. But it’s not just their striking red hair that makes orangutans unique am
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The Time Value Of Money - German Nande

935 views / 1 likes - added 9 years ago

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
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The Otherworldly Creatures In The Ocean's Deepest Depths - Lidia Lins

1,080 views / 3 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/the-otherworldly-creatures-in-the-ocean-s-deepest-depths-lidia-lins About 60 percent of the ocean is a cold, dark region that spans down to 11,000 meters. This zone is known as the deep ocean, and though it seem
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Should we eat bugs? - Emma Bryce

215 views / 0 likes - added 2 years ago

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 of eating bugs, was once extremely widespread throughout cultur
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Why Do Buildings Fall In Earthquakes? - Vicki V. May

1,475 views / 5 likes - added 9 years ago

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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04:53 Popular
Why Is Mount Everest So Tall? - Michele Koppes

1,411 views / 6 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/why-is-mount-everest-so-tall-michele-koppes At 8,850 meters above sea level, Qomolangma, also known as Mount Everest, has the highest altitude on the planet. But how did this towering formation get so tall? Mich
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04:34 Popular
What makes a hero? - Matthew Winkler

805 views / 2 likes - added 6 years ago

View full lesson: http://ed.ted.com/lessons/what-makes-a-hero-matthew-winkler What trials unite not only Harry Potter or Frodo Baggins but many of literature's most interesting heroes? And what do ordinary people have in common with these literary heroes?
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What Is A Calorie? - Emma Bryce

1,190 views / 0 likes - added 8 years ago

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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The three different ways mammals give birth - Kate Slabosky

725 views / 1 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/the-three-different-ways-mammals-give-birth-kate-slabosky All mammals share certain characteristics, like warm blood and backbones. But despite their similarities, these creatures also have many biological diffe
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How does your body process medicine? - Céline Valéry

827 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/how-does-your-body-process-medicine-celine-valery Have you ever wondered what happens to a painkiller, like ibuprofen, after you swallow it? Medicine that slides down your throat can help treat a headache, a sor
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What Makes Tattoos Permanent? - Claudia Aguirre

962 views / 0 likes - added 9 years ago

View full lesson: http://ed.ted.com/lessons/what-makes-tattoos-permanent-claudia-aguirre The earliest recorded tattoo was found on a Peruvian mummy in 6,000 BC. That's some old ink! And considering humans lose roughly 40,000 skin cells per hour, how do th
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Can you solve the three gods riddle? - Alex Gendler

1,299 views / 1 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/can-you-solve-the-three-gods-riddle-alex-gendler You and your team have crash-landed on an ancient planet. Can you appease the three alien overlords who rule it and get your team safely home? Created by logician
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The Ethical Dilemma Of Self-driving Cars - Patrick Lin

913 views / 1 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/the-ethical-dilemma-of-self-driving-cars-patrick-lin Self-driving cars are already cruising the streets today. And while these cars will ultimately be safer and cleaner than their manual counterparts, they can’t
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How Miscommunication Happens (and How To Avoid It) - Katherine Hampsten

814 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/how-to-avoid-miscommunication-katherine-hampsten Have you ever talked with a friend about a problem, only to realize that he just doesn’t seem to grasp why the issue is so important to you? Have you ever present
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Who Was Confucius? - Bryan W. Van Norden

658 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/who-was-confucius-bryan-w-van-norden Most people recognize his name and know that he is famous for having said something, but considering the long-lasting impact his teachings have had on the world, very few peo
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What Is The Biggest Single-celled Organism? - Murry Gans

1,875 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/what-is-the-biggest-single-celled-organism-murry-gans The elephant is a creature of epic proportions — and yet, it owes its enormity to more than 1,000 trillion microscopic cells. And on the epically small end o
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How To Draw St. Patrick's Day - Spotlight

871 views / 0 likes - added 5 years ago

Learn how to draw St. Patrick's Day words. Also, check out all of these other fun St. Patrick's Day lessons https://www.youtube.com/playlist?list=PLnoO3k54vcBSD7To4ge6RK-jbNcgiIu5q This lesson works great for creating homemade cards. It's also Monday, tha
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Why are sharks so awesome?

1,833 views / 12 likes - added 7 years ago

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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Do we really need pesticides? - Fernan Pérez-Gálvez

1,357 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/do-we-really-need-pesticides-fernan-perez-galvez Annually, we shower over 5 billion pounds of pesticides across the Earth to control insects, unwanted weeds, funguses, rodents, and bacteria that may threaten our
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Cloudy Climate Change: How Clouds Affect Earth's Temperature - Jasper Kirkby

739 views / 2 likes - added 9 years ago

View full lesson: http://ed.ted.com/lessons/cloudy-climate-change-how-clouds-affect-earth-s-temperature-jasper-kirkby As the Earth’s surface temperature gradually rises, it has become vital for us to predict the rate of this increase with as much precisio
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What Causes Antibiotic Resistance? - Kevin Wu

1,537 views / 0 likes - added 9 years ago

View full lesson: http://ed.ted.com/lessons/how-antibiotics-become-resistant-over-time-kevin-wu Right now, you are inhabited by trillions of microorganisms. Many of these bacteria are harmless (or even helpful!), but there are a few strains of ‘super bact
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What Makes Muscles Grow? - Jeffrey Siegel

1,790 views / 4 likes - added 8 years ago

View full lesson: https://ed.ted.com/lessons/what-makes-muscles-grow-jeffrey-siegel We have over 600 muscles in our bodies that help bind us together, hold us up, and help us move. Your muscles also need your constant attention, because the way you treat
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The Deadly Irony Of Gunpowder - Eric Rosado

775 views / 1 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/the-deadly-irony-of-gunpowder-eric-rosado In the mid-ninth century, Chinese chemists, hard at work on an immortality potion, instead invented gunpowder. They soon found that this highly inflammable powder was fa
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How Spontaneous Brain Activity Keeps You Alive - Nathan S. Jacobs

668 views / 0 likes - added 9 years ago

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
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History Vs. Richard Nixon - Alex Gendler

1,054 views / 0 likes - added 9 years ago

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
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Could Your Brain Repair Itself? - Ralitsa Petrova

872 views / 1 likes - added 9 years ago

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
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How A Wound Heals Itself - Sarthak Sinha

675 views / 1 likes - added 9 years ago

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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What's Below The Tip Of The Iceberg? - Camille Seaman

607 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/what-s-below-the-tip-of-the-iceberg-camille-seaman It's a well-known fact that the majority of an iceberg lies below the surface -- but just as stealthily hidden are their fascinating qualities. Traveling the se
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Exponential Growth: How Folding Paper Can Get You to the Moon

406 views / 0 likes - added 1 year ago

Check out our Patreon page: https://www.patreon.com/teded 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 growth. This lesson will lea
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How The Heart Actually Pumps Blood - Edmond Hui

1,146 views / 1 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/how-the-heart-actually-pumps-blood-edmond-hui For most of history, scientists weren't quite sure why our hearts were beating or even what purpose they served. Eventually, we realized that these thumping organs s
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How Quantum Mechanics Explains Global Warming - Lieven Scheire

1,570 views / 2 likes - added 9 years ago

View full lesson: http://ed.ted.com/lessons/how-quantum-mechanics-explains-global-warming-lieven-scheire You've probably heard that carbon dioxide is warming the Earth. But how exactly is it doing it? Lieven Scheire uses a rainbow, a light bulb and a bit
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You are your microbes - Jessica Green and Karen Guillemin

1,341 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/you-are-your-microbes-jessica-green-and-karen-guillemin From the microbes in our stomachs to the ones on our teeth, we are homes to millions of unique and diverse communities which help our bodies function. Jess
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How does asthma work? - Christopher E. Gaw

1,794 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/how-does-asthma-work-christopher-e-gaw More than 300 million people around the world suffer from asthma, and around 250,000 people die from it each year. But why do people get asthma, and how can this disease be
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Why isn't the world covered in poop? - Eleanor Slade and Paul Manning

1,012 views / 0 likes - added 6 years ago

Learn more by reading Douglas J. Emlen's "Animal Weapons": https://amzn.to/2I2SLSw View full lesson: https://ed.ted.com/lessons/why-isn-t-the-world-covered-in-poop-eleanor-slade-and-paul-manning Check out our book rec page: http://bit.ly/2I3INQC Each day,
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Why Neutrinos Matter - Sílvia Bravo Gallart

630 views / 0 likes - added 9 years ago

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
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Solid, Liquid, Gas And … Plasma? - Michael Murillo

1,669 views / 1 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/solid-liquid-gas-and-plasma-michael-murillo Have you ever seen static electricity cause a spark of light? What is that spark? What about lightning, the Northern Lights, or the tail of a comet? All of those thing
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How Do Glasses Help Us See? - Andrew Bastawrous And Clare Gilbert

748 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/how-do-glasses-help-us-see-andrew-bastawrous-and-clare-gilbert Today, glasses help millions of people with poor vision be able to see clearly. But how? Andrew Bastawrous and Clare Gilbert help unravel the answer
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How the sandwich was invented | Moments of Vision 5 - Jessica Oreck

879 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/how-the-sandwich-was-invented-moments-of-vision-5-jessica-oreck Today, it is estimated that 50% of Americans eat at least one sandwich every day. And while it’s all but impossible to imagine a world without them
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What Is The Heisenberg Uncertainty Principle? - Chad Orzel

1,600 views / 0 likes - added 9 years ago

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
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Einstein's Miracle Year - Larry Lagerstrom

729 views / 0 likes - added 9 years ago

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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How Misused Modifiers Can Hurt Your Writing - Emma Bryce

1,195 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/how-misused-modifiers-can-hurt-your-writing-emma-bryce Modifiers are words, phrases, and clauses that add information about other parts of a sentence—which is usually helpful. But when modifiers aren’t linked cl
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A Brief History Of Plural Word...s - John McWhorter

681 views / 0 likes - added 8 years ago

View full lesson here: http://ed.ted.com/lessons/a-brief-history-of-plural-word-s-john-mcwhorter All it takes is a simple S to make most English words plural. But it hasn't always worked that way (and there are, of course, exceptions). John McWhorter look
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Myths And Misconceptions About Evolution - Alex Gendler

874 views / 1 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/myths-and-misconceptions-about-evolution-alex-gendler How does evolution really work? Actually, not how some of our common evolutionary metaphors would have us believe. For instance, it's species, not individual
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Reasons For The Seasons - Rebecca Kaplan

836 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/reasons-for-the-seasons-rebecca-kaplan Why do some regions experience full-time heat while others are reckoning with frigid temperatures and snow? And why are the seasons reversed in the two hemispheres? Rebecca
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How Do Hard Drives Work? - Kanawat Senanan

728 views / 0 likes - added 8 years ago

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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How do drugs affect the brain? - Sara Garofalo

1,677 views / 2 likes - added 6 years ago

View full lesson: http://ed.ted.com/lessons/how-do-drugs-affect-the-brain-sara-garofalo Most people will take a pill, receive an injection, or otherwise take some kind of medicine during their lives. But most of us don’t know anything about how thes
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Into the Forest with Jane Goodall!

1,541 views / 9 likes - added 6 years ago

Jane Goodall is an amazing scientist and conservationist who has dedicated her life to learning about and protecting chimpanzees! Thanks to her, we've learned that, sometimes, people and animals aren't so different! Learn more about her and her work with
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The history of tea - Shunan Teng

991 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/the-history-of-tea-shunan-teng Tea is the second most consumed beverage in the world after water –– and from sugary Turkish Rize tea to salty Tibetan butter tea, there are almost as many ways of preparing the be
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How Sugar Affects The Brain - Nicole Avena

856 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/how-sugar-affects-the-brain-nicole-avena When you eat something loaded with sugar, your taste buds, your gut and your brain all take notice. This activation of your reward system is not unlike how bodies process
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Mysteries Of Vernacular: Dynamite - Jessica Oreck And Rachael Teel

638 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/mysteries-of-vernacular-dynamite-jessica-oreck-and-rachael-teel With an explosive meaning, the word dynamite's past is as historical as it is etymological. Jessica Oreck and Rachael Teel describe how Alfred Nobe
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The Great Conspiracy Against Julius Caesar - Kathryn Tempest

789 views / 1 likes - added 9 years ago

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
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Why Are There So Many Insects? - Murry Gans

937 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/why-are-there-so-many-insects-murry-gans If insects suddenly morphed into large beings and decided to wage war on us, there’s no doubt that humans would lose. There are an estimated 10 quintillion individual ins
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Is There A Difference Between Art And Craft? - Laura Morelli

783 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/is-there-a-difference-between-art-and-craft-laura-morelli Was da Vinci an artistic genius? Sure, but he was also born in the right place at the right time -- pre-Renaissance, Western artists got little individua
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Why do people get so anxious about math? - Orly Rubinsten

1,514 views / 1 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/why-do-people-get-so-anxious-about-math-orly-rubinsten Have you ever sat down to take a math test and immediately felt your heart beat faster and your palms start to sweat? This is called math anxiety, and if it
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A Brief History Of Religion In Art - TED-Ed

896 views / 1 likes - added 8 years ago

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
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What does this symbol actually mean? - Adrian Treharne

1,250 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/what-does-this-symbol-actually-mean-adrian-treharne Some of the world’s most recognizable symbols exist to sell products. Others, to steer traffic or advance political causes. But there’s one whose main purpose
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The History Of Museums - J. V. Maranto

753 views / 0 likes - added 9 years ago

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
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How Does A Jellyfish Sting? - Neosha S Kashef

993 views / 4 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/how-does-a-jellyfish-sting-neosha-s-kashef You’re swimming in the ocean when something brushes your leg. When the tingling sets in, you realize you’ve been stung by a jellyfish. How do these beautiful gelatinous
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If Superpowers Were Real: Body Mass - Joy Lin

905 views / 1 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/if-superpowers-were-real-body-mass-joy-lin What if manipulating body mass wasn't just the stuff of epic comic book stories? Is it scientifically possible to manipulate your body mass? In this series, Joy Lin tac
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What is Zeno's Dichotomy Paradox? - Colm Kelleher

544 views / 0 likes - added 6 years ago

View full lesson: http://ed.ted.com/lessons/what-is-zeno-s-dichotomy-paradox-colm-kelleher Can you ever travel from one place to another? Ancient Greek philosopher Zeno of Elea gave a convincing argument that all motion is impossible - but where's the fla
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Pros And Cons Of Public Opinion Polls - Jason Robert Jaffe

938 views / 1 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/pros-and-cons-of-public-opinion-polls-jason-robert-jaffe How do public opinion polls work? And, more importantly, are they accurate? Jason Robert Jaffe reveals the complexities and biases of polls and provides t
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How Do Vaccines Work? - Kelwalin Dhanasarnsombut

829 views / 0 likes - added 9 years ago

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

942 views / 1 likes - added 9 years ago

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
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Inside The Minds Of Animals - Bryan B Rasmussen

864 views / 1 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/inside-the-minds-of-animals-bryan-b-rasmussen Do animals think? It’s a question that has intrigued scientists for thousands of years, inspiring them to come up with different methods and criteria to measure the
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The Science Of Macaroni Salad: What's In A Mixture? - Josh Kurz

980 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/the-science-of-macaroni-salad-what-s-in-a-mixture-josh-kurz What's in macaroni salad? Break down the pasta, mayonnaise, vinegar, mustard, vegetables, etc., and you're left with a bunch of molecules. Josh Kurz us
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How Mendel's pea plants helped us understand genetics - Hortensia Jiménez Díaz

1,538 views / 0 likes - added 6 years ago

View full lesson: http://ed.ted.com/lessons/how-mendel-s-pea-plants-helped-us-understand-genetics-hortensia-jimenez-diaz Each father and mother pass down traits to their children, who inherit combinations of their dominant or recessive alleles. But how do
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How Computer Memory Works - Kanawat Senanan

1,760 views / 3 likes - added 8 years ago

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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What is bipolar disorder? - Helen M. Farrell

644 views / 1 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/what-is-bipolar-disorder-helen-m-farrell The word bipolar means ‘two extremes.’ For the many millions experiencing bipolar disorder around the world, life is split between two different realities: elation and de
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Music as a language - Victor Wooten

612 views / 0 likes - added 6 years ago

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
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How The Choices You Make Can Affect Your Genes - Carlos Guerrero-Bosagna

535 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/how-the-choices-you-make-can-affect-your-genes-carlos-guerrero-bosagna Here’s a conundrum: Identical twins originate from the same DNA ... so how can they turn out so different — even in traits that have a signi
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The Ancient Origins Of The Olympics - Armand D'Angour

1,096 views / 3 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/the-ancient-origins-of-the-olympics-armand-d-angour Thousands of years in the making, the Olympics began as part of a religious festival honoring the Greek god Zeus in the rural Greek town of Olympia. But how di
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The Psychology Behind Irrational Decisions - Sara Garofalo

896 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/the-psychology-behind-irrational-decisions-sara-garofalo Often people make decisions that are not “rational” from a purely economical point of view — meaning that they don’t necessarily lead to the best result.
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Can machines read your emotions? - Kostas Karpouzis

864 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/can-machines-read-your-emotions-kostas-karpouzis Computers can beat us in board games, transcribe speech, and instantly identify almost any object. But will future robots go further by learning to figure out wha
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Why Is Yawning Contagious? - Claudia Aguirre

761 views / 1 likes - added 8 years ago

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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Inside The Ant Colony - Deborah M. Gordon

864 views / 1 likes - added 9 years ago

View full lesson: http://ed.ted.com/lessons/inside-the-ant-colony-deborah-m-gordon Ants have one of the most complex social organizations in the animal kingdom; they live in structured colonies that contain different types of members who perform specific
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The Law Of Conservation Of Mass - Todd Ramsey

2,430 views / 0 likes - added 9 years ago

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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How do whales sing? - Stephanie Sardelis

989 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/how-do-whales-sing-stephanie-sardelis Communicating underwater is challenging. Light and odors don’t travel well, but sound moves about four times faster in water than in air — which means marine mammals often u
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Inside Your Computer - Bettina Bair

860 views / 2 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/inside-your-computer-bettina-bair How does a computer work? The critical components of a computer are the peripherals (including the mouse), the input/output subsystem (which controls what and how much informati
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Why are we so attached to our things? - Christian Jarrett

781 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/why-are-we-so-attached-to-our-things-christian-jarrett After witnessing the “violent rage” shown by babies whenever deprived of an item they considered their own, Jean Piaget – a founding father of child psychol
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History Vs. Genghis Khan - Alex Gendler

1,069 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/history-vs-genghis-khan-alex-gendler He was one of the most fearsome warlords who ever lived, waging an unstoppable conquest across the Eurasian continent. But was Genghis Khan a vicious barbarian or a unifier w
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Not All Scientific Studies Are Created Equal - David H. Schwartz

813 views / 0 likes - added 8 years ago

View full lesson: Not all scientific studies are created equal - David H. Schwartz Every day, we are bombarded by attention grabbing headlines that promise miracle cures to all of our ailments -- often backed up by a "scientific study." But what are these
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Is Radiation Dangerous? - Matt Anticole

1,107 views / 1 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/is-radiation-dangerous-matt-anticole When we hear the word radiation, it’s tempting to picture huge explosions and frightening mutations. But that’s not the full story — radiation also applies to rainbows and a
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Why Is The US Constitution So Hard To Amend? - Peter Paccone

688 views / 2 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/why-is-the-us-constitution-so-hard-to-amend-peter-paccone When it was ratified in 1789, the US Constitution didn’t just institute a government by the people – it provided a way for the people to alter the Consti
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How super glue was invented | Moments of Vision 8 - Jessica Oreck

802 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/how-super-glue-was-invented-moments-of-vision-8-jessica-oreck Today, super glue is a nearly indispensable household item — but its incredibly sticky nature almost caused it to be abandoned in the development pha
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What can you learn from ancient skeletons? - Farnaz Khatibi

1,106 views / 2 likes - added 7 years ago

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
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How Batteries Work - Adam Jacobson

1,546 views / 1 likes - added 9 years ago

View full lesson: http://ed.ted.com/lessons/why-batteries-die-adam-jacobson Batteries are a triumph of science—they allow smartphones and other technologies to exist without anchoring us to an infernal tangle of power cables. Yet even the best batteries w
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How Do We Study The Stars? - Yuan-Sen Ting

1,593 views / 1 likes - added 9 years ago

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
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The Arctic Vs. The Antarctic - Camille Seaman

967 views / 2 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/the-arctic-vs-the-antarctic-camille-seaman How can you tell the two poles apart? Where are the penguins? What about the bears? The Arctic pole is located in the Northern Hemisphere within the deep Arctic Ocean,
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Why doesn’t anything stick to Teflon? - Ashwini Bharathula

668 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/why-doesn-t-anything-stick-to-teflon-ashwini-bharathula Teflon was in the spacesuits the Apollo crew wore for the moon landing, in pipes and valves used in the Manhattan project, and it may be in your kitchen, a
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Your Brain Can Solve Algorithms - David J. Malan

1,009 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/your-brain-can-solve-algorithms-david-j-malan An algorithm is a mathematical method of solving problems both big and small. Though computers run algorithms constantly, humans can also solve problems with algorit
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Real Life Sunken Cities - Peter Campbell

833 views / 3 likes - added 7 years ago

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
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Can you solve the fish riddle? - Steve Wyborney

1,372 views / 1 likes - added 6 years ago

View full lesson: http://ed.ted.com/lessons/can-you-solve-the-fish-riddle-steve-wyborney As the cargo director on the maiden voyage of the S.S. Buoyant, you’ve agreed to transport several tanks containing the last specimens of an endangered fish species t
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Animation Basics: The Optical Illusion Of Motion - TED-Ed

948 views / 1 likes - added 8 years ago

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
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What

485 views / 1 likes - added 8 years ago

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
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The Evolution Of The Human Eye - Joshua Harvey

2,319 views / 3 likes - added 9 years ago

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
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What Happens When You Get Heat Stroke? - Douglas J. Casa

1,182 views / 1 likes - added 9 years ago

View full lesson: http://ed.ted.com/lessons/what-happens-when-you-get-heat-stroke-douglas-j-casa Have you ever suffered from exertional heat stroke? This condition is caused by intense activity in the heat and is one of the top three killers of athletes a
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How Fast Are You Moving Right Now? - Tucker Hiatt

550 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/how-fast-are-you-moving-right-now-tucker-hiatt "How fast are you moving?" seems like an easy question, but it's actually quite complicated -- and perhaps best answered by another question: "Relative to what?" Ev
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Can you solve the prisoner boxes riddle? - Yossi Elran

1,084 views / 1 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/can-you-solve-the-prisoner-boxes-riddle-yossi-elran Your favorite band is great at playing music...but not so great at being organized. They keep misplacing their instruments on tour, and it’s driving their mana
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Eye Vs. Camera - Michael Mauser

1,098 views / 1 likes - added 9 years ago

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
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Biodiesel: The Afterlife Of Oil - Natascia Radice

594 views / 2 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/biodiesel-the-afterlife-of-oil-natascia-radice How could you dispose of your cooking oil when you're done cooking? The easiest thing to do might be to pour it down your drain -- but if you save it up and send it
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Can You Solve The Prisoner Hat Riddle? - Alex Gendler

1,429 views / 3 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/can-you-solve-the-prisoner-hat-riddle-alex-gendler You and nine other individuals have been captured by super-intelligent alien overlords. The aliens think humans look quite tasty, but their civilization forbids
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A brief history of graffiti - Kelly Wall

1,167 views / 2 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/a-brief-history-of-graffiti-kelly-wall Spray-painted subway cars, tagged bridges, mural-covered walls – graffiti pops up boldly throughout our cities. And it turns out: it’s nothing new. Graffiti has been around
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Could human civilization spread across the whole galaxy? - Roey Tzezana

813 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/could-human-civilization-spread-across-the-whole-galaxy-roey-tzezana Could human civilization eventually spread across the whole Milky Way galaxy? Could we move beyond our small, blue planet to establish colonie
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The Pleasure Of Poetic Pattern - David Silverstein

615 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/the-pleasure-of-poetic-pattern-david-silverstein Humans are creatures of rhythm and repetition. From our breath to our gait: rhythm is central to our experience, and often brings us pleasure. We can find pleasur
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How Do Germs Spread (and Why Do They Make Us Sick)? - Yannay Khaikin And Nicole Mideo

779 views / 0 likes - added 9 years ago

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
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Where we get our fresh water - Christiana Z. Peppard

1,602 views / 3 likes - added 6 years ago

View full lesson: http://ed.ted.com/lessons/where-we-get-our-fresh-water-christiana-z-peppard Fresh water accounts for only 2.5% of Earth's water, yet it is vital for human civilization. What are our sources of fresh water? In the first of a two part seri
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It Was in Front of the Whole School.... | SCRAPBOOK MY LIFE

371 views / 0 likes - added 3 years ago

Impressing Your Crush Lesson 1: Maybe don't dress as an elf and sing in front of the whole school?Here's how I learned that lesson... Credits Animation by Jennifer RuizJoin the fun on Peacock Kids where you can find an endless supply of laugh-out-loud jok
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A Brief History Of Video Games (Part I) - Safwat Saleem

1,402 views / 4 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/a-brief-history-of-video-games-part-i-safwat-saleem Video games are everywhere these days, but where did they actually come from? The history of video games is a complicated story that involves giant computers i
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How To Detect A Supernova - Samantha Kuula

659 views / 0 likes - added 9 years ago

View full lesson: http://ed.ted.com/lessons/how-to-detect-a-supernova-samantha-kuula Just now, somewhere in the universe, a star exploded. In fact, a supernova occurs every second or so in the observable universe. Yet, we’ve never actually been able to wa
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History Vs. Andrew Jackson - James Fester

916 views / 2 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/history-vs-andrew-jackson-james-fester Andrew Jackson was both beloved and loathed during his presidency. In this imaginary courtroom, you get to be the jury, considering and weighing Jackson's part in the spoil
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How Science Fiction Can Help Predict The Future - Roey Tzezana

779 views / 1 likes - added 8 years ago

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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How the rubber glove was invented | Moments of Vision 4 - Jessica Oreck

1,011 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/how-the-rubber-glove-was-invented-moments-of-vision-4-jessica-oreck It’s hard to imagine a modern hospital being able to function without rubber gloves — but they weren’t actually invented until 1890. In the fou
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Penguins: Popularity, Peril And Poop - Dyan DeNapoli

1,128 views / 6 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/the-popularity-plight-and-poop-of-penguins-dyan-denapoli Penguins are odd birds. For one, they cannot fly (but they are amazing swimmers), and, contrary to popular belief, the majority of penguin populations liv
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Vampires: Folklore, Fantasy And Fact - Michael Molina

969 views / 1 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/vampires-folklore-fantasy-and-fact-michael-molina The myth of the bloodsucking vampire has stalked humans from ancient Mesopotamia to 18th-century Eastern Europe, but it has differed in the terrifying details. S
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How much of human history is on the bottom of the ocean? - Peter Campbell

1,050 views / 1 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/how-much-of-human-history-is-on-the-bottom-of-the-ocean-peter-campbell Sunken relics, ghostly shipwrecks, and lost cities aren’t just wonders found in fictional adventures. Beneath the ocean’s surface, there are
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How smudge-proof lipstick was invented | Moments of Vision 6 - Jessica Oreck

859 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/how-smudge-proof-lipstick-was-invented-moments-of-vision-6-jessica-oreck Today, lip cosmetics are a billion dollar industry, with 1 out of every 3 women claiming that they won’t leave home without applying lipst
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Mysteries Of Vernacular: Robot - Jessica Oreck And Rachael Teel

666 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/mysteries-of-vernacular-robot-jessica-oreck-and-rachael-teel In 1920, Czech writer Karel Čapek wrote a play about human-like machines, thereby inventing the term robot from the Central European word for forced l
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How Computers Translate Human Language - Ioannis Papachimonas

1,051 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/how-computers-translate-human-language-ioannis-papachimonas Is a universal translator possible in real life? We already have many programs that claim to be able to take a word, sentence, or entire book in one la
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How Coffee Got Quicker | Moments Of Vision 2 - Jessica Oreck

697 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/how-coffee-got-quicker-moments-of-vision-2-jessica-oreck For the 64% of Americans that drink coffee daily, an expedient cup is practically essential. But preparing coffee hasn’t always been easy. In the second i
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Secrets of the X chromosome - Robin Ball

857 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/secrets-of-the-x-chromosome-robin-ball The sequence of DNA that we inherit from our parents encodes directions for making our cells and giving us specific traits. Identical twins have the same DNA sequence, so h
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Cicadas: The Dormant Army Beneath Your Feet - Rose Eveleth

764 views / 1 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/cicadas-the-dormant-army-beneath-your-feet-rose-eveleth Every 13 or 17 years, billions of cicadas emerge from the ground to molt, mate and die. Adult cicadas only live a few weeks above ground, but you'd be hard
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History Vs. Napoleon Bonaparte - Alex Gendler

1,050 views / 1 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/history-vs-napoleon-bonaparte-alex-gendler After the French Revolution erupted in 1789, Europe was thrown into chaos. Neighboring countries’ monarchs feared they would share the fate of Louis XVI and attacked th
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How to practice effectively...for just about anything - Annie Bosler and Don Greene

729 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/how-to-practice-effectively-for-just-about-anything-annie-bosler-and-don-greene Mastering any physical skill takes practice. Practice is the repetition of an action with the goal of improvement, and it helps us
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How Do You Decide Where To Go In A Zombie Apocalypse? - David Hunter

1,152 views / 3 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/how-do-you-decide-where-to-go-in-a-zombie-apocalypse-david-hunter Can geography save your life in case of, say, a zombie apocalypse? Understanding the push and pull factors that create geographic movement -- or
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The Most Lightning-struck Place On Earth - Graeme Anderson

779 views / 1 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/the-most-lightning-struck-place-on-earth-graeme-anderson Lake Maracaibo is the stormiest place on the planet. Thunderstorms rage above this massive body of water for up to 200 days of the year, with each ear-spl
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How Transistors Work - Gokul J. Krishnan

960 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/how-transistors-work-gokul-j-krishnan Modern computers are revolutionizing our lives, performing tasks unimaginable only decades ago. This was made possible by a long series of innovations, but there’s one found
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When is water safe to drink? - Mia Nacamulli

1,379 views / 2 likes - added 6 years ago

View full lesson: https://ed.ted.com/lessons/when-is-water-safe-to-drink-mia-nacamulli Water is refreshing, hydrating, and invaluable to your survival. But clean water remains a precious and often scarce commodity – there are nearly 800 million people who
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What Is Déjà Vu? What Is Déjà Vu? - Michael Molina

559 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/what-is-deja-vu-what-is-deja-vu-michael-molina You might have felt it -- the feeling that you've experienced something before, but, in reality, the experience is brand new. There are over 40 theories that attemp
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How Big Is The Ocean? - Scott Gass

944 views / 1 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/how-big-is-the-ocean-scott-gass While the Earth's oceans are known as five separate entities, there is really only one ocean. So, how big is it? As of 2013, it takes up 71% of the Earth, houses 99% of the biosph
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Beware of nominalizations (AKA zombie nouns) - Helen Sword

904 views / 1 likes - added 6 years ago

View full lesson: http://ed.ted.com/lessons/beware-of-nominalizations-aka-zombie-nouns-helen-sword Few mistakes sour good writing like nominalizations, or, as Helen Sword likes to call them, zombie nouns. Zombie nouns transform simple and straightforward
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Animation Basics: The Art Of Timing And Spacing - TED-Ed

798 views / 0 likes - added 8 years ago

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
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I'm Batman - Amy Wray

916 views / 4 likes - added 9 years ago

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
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Why Do We Cry? The Three Types Of Tears - Alex Gendler

1,117 views / 2 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/why-do-we-cry-the-three-types-of-tears-alex-gendler Whether we cry during a sad movie, while chopping onions, or completely involuntarily, our eyes are constantly producing tears. Alex Gendler tracks a particula
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What is entropy? - Jeff Phillips

1,631 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/what-is-entropy-jeff-phillips There’s a concept that’s crucial to chemistry and physics. It helps explain why physical processes go one way and not the other: why ice melts, why cream spreads in coffee, why air
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Do Animals Have Language? - Michele Bishop

1,129 views / 2 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/do-animals-have-language-michele-bishop All animals communicate. But do they have language? Michele Bishop details the four specific qualities we associate with language and investigates whether or not certain a
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Where Did Russia Come From? - Alex Gendler

916 views / 6 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/where-did-russia-come-from-alex-gendler Russia is the biggest country in the world, spanning one-eighth of the earth’s landmass. But where did it all begin? Alex Gendler explores the epic history of the Kievan R
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The Threat Of Invasive Species - Jennifer Klos

2,730 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/the-threat-of-invasive-species-jennifer-klos Massive vines that blanket the southern United States, climbing high as they uproot trees and swallow buildings. A ravenous snake that is capable of devouring an alli
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Eli The Eel: A Mysterious Migration - James Prosek

908 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/eli-the-eel-a-mysterious-migration-james-prosek They're slippery. They're slithery. And while they totally look like underwater snakes, eels are, in fact, unique fish that can breathe through their skin and even
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Are Spotty Fruits And Vegetables Safe To Eat? - Elizabeth Brauer

896 views / 0 likes - added 7 years ago

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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Making Waves: The Power Of Concentration Gradients - Sasha Wright

1,053 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/the-motion-of-the-ocean-the-concentration-gradient-sasha-wright The constant motion of our oceans represents a vast and complicated system involving many different drivers. Sasha Wright explains the physics behi
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A brief history of numerical systems - Alessandra King

1,577 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/a-brief-history-of-numerical-systems-alessandra-king 1, 2, 3, 4, 5, 6, 7, 8, 9... and 0. With just these ten symbols, we can write any rational number imaginable. But why these particular symbols? Why ten of the
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Why The Octopus Brain Is So Extraordinary - Cláudio L. Guerra

1,064 views / 3 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/why-the-octopus-brain-is-so-extraordinary-claudio-l-guerra Octopuses have the ability to solve puzzles, learn through observation, and even use tools – just like humans. But what makes octopus intelligence so am
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Can Plants Talk To Each Other? - Richard Karban

1,373 views / 2 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/can-plants-talk-to-each-other-richard-karban Can plants talk to each other? It certainly doesn’t seem that way: They don’t have complex sensory or nervous systems, like animals do, and they look pret
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The Science Behind The Myth: Homer's

765 views / 1 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/the-science-behind-the-myth-homer-s-odyssey-matt-kaplan Homer's "Odyssey" recounts the adventures of the Greek hero Odysseus during his journey home from the Trojan War. Though some parts may be based on real ev
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Can you solve the virus riddle? - Lisa Winer

1,445 views / 1 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/can-you-solve-the-virus-riddle-lisa-winer Your research team has found a prehistoric virus preserved in the permafrost and isolated it for study. After a late night working, you’re just closing up the lab when a

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