Search Results: "amplitude wavelength patterns fourth grade lesson plan"

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04:58
How does the Rorschach inkblot test work? - Damion Searls

352 views / 0 likes - added 5 years ago

What are the origins of the Rorschach test and how does it work? Explore the inkblot tool psychologists use to test a subject’s perceptions and mental health. -- For nearly a century, ten inkblots have been used as an almost mystical personality test. Lon
04:09 Popular
The Zodiac Constellations: Crash Course Kids #37.1

913 views / 2 likes - added 8 years ago

We've talked about constellations; groups of stars in the night sky that we assign names to. But there are a certain group of special constellations called The Zodiac that Sabrina is going to chat about. Gemini, Sagittarius, Scorpio? You've heard of them
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04:02
Why Don't Fish Freeze in Winter? | Winter is Alive! | SciShow Kids

535 views / 1 likes - added 2 years ago

Teachers and parents: scroll down to check out the Next Generation Science Standards (NGSS) for this episode!Squeaks wants to know what happens to fish when the seasons change and the pond freezes in winter! He and Jessi learn all about how fish survive u
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03:55
Science Bob's Rube Goldberg Machine on Kelly & Michael

662 views / 1 likes - added 7 years ago

I've always loved Rube Goldberg machines, so when I was invited back on Live With Kelly & Michael for their 4th of July week, I took on the task of creating a science based, 4th of July themed Rube Goldberg device. It took 2 weeks to plan and build, but h
02:08 Popular
Mysteries Of Vernacular: Inaugurate - Jessica Oreck

974 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/mysteries-of-vernacular-inaugurate-jessica-oreck From avian omens to the beginning of a new policy or the reign of a new politician, Jessica Oreck follows the flight path of the word inaugurate. Lesson and anima
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How To Draw A Funny Slime Monster

224 views / 0 likes - added 1 year ago

In this drawing lesson, Austin and I are learning how to draw a funny slime monster! This is a great lesson to change and add even more monsters to. We hope you enjoy this lesson a lot. Art Supplies ~ This is a list of the supplies we used, but feel free
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Is Space Trying To Kill Us? - Ron Shaneyfelt

650 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/is-space-trying-to-kill-us-ron-shaneyfelt How likely is it that a massive asteroid will do major damage to Earth and its inhabitants? What about the sun -- is it dying out anytime soon? And the supermassive blac
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Why Do Your Knuckles Pop? - Eleanor Nelsen

819 views / 3 likes - added 9 years ago

View full lesson: http://ed.ted.com/lessons/why-do-your-knuckles-pop-eleanor-nelsen Some people love the feeling of cracking their knuckles, while others cringe at the sound. But what causes that trademark pop? And is it dangerous? Eleanor Nelsen gives th
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04:34
Ultrasonic Levitation

221 views / 0 likes - added 3 years ago

Acoustic levitation meets Schlieren optics: By reflecting a sound wave back onto itself, one can secure a standing wave if the distance between the source of the sound and the reflector is equal to an integral number of half wavelengths. In this demonstra
05:55 Popular
Chladni plates & mechanical driver- cheap! // Homemade Science with Bruce Yeany

743 views / 0 likes - added 7 years ago

The use of Chladni plates can make a wonderful demonstration but can be rather expensive for equipment that may have limited use in the average classroom. This video shows how I set up the experiment using a free online tone generator on my computer, a di
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How Do Pain Relievers Work? - George Zaidan

647 views / 0 likes - added 6 years ago

View full lesson: http://ed.ted.com/lessons/how-do-pain-relievers-work Some people take aspirin or ibuprofen to treat everyday aches and pains, but how exactly do the different classes of pain relievers work? Learn about the basic physiology of how humans
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Mysterious Trilobites! | The History of Life! | SciShow Kids

306 views / 0 likes - added 2 years ago

Squeaks and Mister Brown pretend to go back in time to learn more about Trilobites, using special clues from fossils!Hosted by: Anthony Brown----------Love SciShow Kids and want to help support it? Become a Patron on Patreon: https://www.patreon.com/scish
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LEGO Drawing Machine - Drawing 5 Designs

1,062 views / 0 likes - added 7 years ago

My Spirograph style LEGO drawing machine drawing 5 patterns, including a 'dual' pattern design. You can watch the full video, explaining how it works here: https://www.youtube.com/watch?v=1Ihjh_F7jn0 Instructions and more information can be found on my we
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How To Understand Power - Eric Liu

976 views / 1 likes - added 9 years ago

View full lesson: http://ed.ted.com/lessons/how-to-understand-power-eric-liu Every day, we move and operate within systems of power that other people have constructed. But we’re often uncomfortable talking about power. Why? Eric Liu describes the six sour
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02:58
India's 5000 Year Old Art of Rangoli

33 views / 0 likes - added 5 months ago

Meet Rahul Swami - India's fastest Rangoli artist. Rangoli, a traditional Indian art form, involves creating beautiful patterns on the ground or tabletops using various materials like powdered limestone and colored sand. More than just decoration, Rangoli
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Puke, poop and tiny cockroaches: How the leafcutter ant queen runs her farm - Charles Wallace

129 views / 0 likes - added 1 year ago

Take a look inside the leafcutter ant colony as a queen begins her reign and the ants work to sustain their supply of fungus.--In a Texas clearing, an ancient tale that ties four species together is unfurling. The first involved is a soon-to-be queen leaf
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The physics of surfing - Nick Pizzo

425 views / 0 likes - added 5 years ago

Wondering how you can catch the perfect wave? Dive into the fascinating and complex physics of surfing. -- Whether or not you realize it, surfers are masters of complicated physics. The science of surfing begins as soon as a board first hits the water. Su
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How Does Anesthesia Work? - Steven Zheng

1,045 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/how-does-anesthesia-work-steven-zheng When under anesthesia, you can’t move, form memories, or — hopefully — feel pain. And while it might just seem like you are asleep for that time, you actually aren’t. What’s
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06:51
Why Different Soils Feel Different

298 views / 0 likes - added 3 years ago

Squeaks and Mister Brown do some experiments with soil, and learn all about why different soils feel different!----------Love SciShow Kids and want to help support it? Become a Patron on Patreon: https://www.patreon.com/scishowIf you have a question for J
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How blue jeans were invented | Moments of Vision 10 - Jessica Oreck

894 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/how-blue-jeans-were-invented-moments-of-vision-10-jessica-oreck Today, 96% of American consumers own at least one pair of jeans. But where did these durable duds come from? And how did they get so popular? Jessi
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07:16 Popular
Should This Lake Exist?

782 views / 2 likes - added 8 years ago

The Salton Sea is the largest body of water in California, home to the second most diverse group of birds in America and it exists by accident. Another great video on the Salton Sea: https://youtu.be/otIU6Py4K_A I used archive from this video. Music by Ke
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How To Draw The Poop Emoji

6,030 views / 14 likes - added 6 years ago

Yes, I know not everyone is going to want to follow along on this one... But, my little Austin really wanted to learn how to draw a poop emoji! Plus, from all of the requests we received, it was clear there were a lot of you really wanting to draw this al
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What Is Fat? - George Zaidan

2,175 views / 1 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/what-is-fat-george-zaidan As the narrative goes, fat is bad. Well, it's actually more nuanced than that. The type of fat you eat is more impactful on your health than the quantity. George Zaidan examines triglyc
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How do crystals work? - Graham Baird

1,288 views / 1 likes - added 5 years ago

What makes crystals grow into their signature shapes? Dig into the atomic patterns and unique properties of crystals. --Many crystals have signature shapes like the cascade of pointed quartz or a pile of galena cubes. Every crystals atoms have a defining
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03:39 Popular
The Science Of Static Electricity - Anuradha Bhagwat

1,244 views / 3 likes - added 9 years ago

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

1,868 views / 2 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/what-is-a-vector-david-huynh Physicists, air traffic controllers, and video game creators all have at least one thing in common: vectors. But what exactly are they, and why do they matter? David Huynh explains h
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Meet the Redwoods: The Worlds Tallest Trees

284 views / 1 likes - added 3 years ago

Jessi and Squeaks are thinking of visiting the redwoods, the tallest trees in the world, but there's lots for them to learn before they make their trip!----------Love SciShow Kids and want to help support it? Become a Patron on Patreon: https://www.patreo
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Could We Actually Live On Mars? - Mari Foroutan

1,131 views / 5 likes - added 8 years ago

View full lesson: https://ed.ted.com/lessons/could-we-actually-live-on-mars-mari-foroutan#watch There's a lot of talk these days about when and how we might all move to Mars. But what would it actually be like to live there? Mari Foroutan details the feat
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Overcoming Dyslexia, Finding Passion: Piper Otterbein at TEDxYouth@CEHS

581 views / 0 likes - added 6 years ago

Piper Otterbein is a senior at Cape Elizabeth High School. Piper was born in New York, but she has lived in Cape Elizabeth for the past eleven years. When Piper was in first grade, she was diagnosed with a learning disability. While Piper struggled throug
05:08
Hairy Branches and Ices Other Weird, Wonderful Forms

243 views / 0 likes - added 3 years ago

Jessi and Squeaks found a branch growing what looked like white hair! So they brought the branch back to the Fort to run some tests and found out that it isn't hair at all... it's ice! ----------Love SciShow Kids and want to help support it? Become a Patr
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Comma Story - Terisa Folaron

1,062 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/comma-story-terisa-folaron It isn't easy holding complex sentences together (just ask a conjunction or a subordinate), but the clever little comma can help lighten the load. But how to tell when help is really n
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Why Do Some People Go Bald? - Sarthak Sinha

929 views / 1 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/why-do-some-people-go-bald-sarthak-sinha What do Charles Darwin, Michael Jordan, and Yoda have in common? They, like many other historical and fictive individuals, are bald. Scientists have long pondered, why do
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Vermicomposting: How Worms Can Reduce Our Waste - Matthew Ross

1,588 views / 2 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/vermicomposting-how-worms-can-reduce-our-waste-matthew-ross Nearly one third of our food ends up in the trash can. There is hope, however, in the form of worms, which naturally convert organic waste into fertili
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This is the crazy way distressed jeans are made

415 views / 0 likes - added 7 years ago

The LaserSharp Denim Abrasion System uses 2500 watts of power to burn patterns into the legs of jeans, giving them a stylish "distressed" look. Read more: http://www.businessinsider.com/sai FACEBOOK: https://www.facebook.com/techinsider TWITTER: https://t
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UPenn's magnetic, modular drones

553 views / 0 likes - added 6 years ago

The University of Pennsylvania invented a network of drones that can magnetize themselves to each other and arrange themselves mid-flight to form patterns and structures. SUBSCRIBE: https://goo.gl/kdDpXu FOLLOW QUARTZ: Facebook: https://goo.gl/DsmLvx Twit
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A day in the life of an ancient Athenian - Robert Garland

680 views / 1 likes - added 6 years ago

Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/a-day-in-the-life-of-an-ancient-athenian-robert-garland It’s 427 BCE, and the worst internal conflict ever to occur in the ancient Greek world is in its
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Cloudy With A Chance Of Joy - Gavin Pretor-Pinney

716 views / 0 likes - added 8 years ago

You don't need to plan an exotic trip to find creative inspiration. Just look up, says Gavin Pretor-Pinney, founder of the Cloud Appreciation Society. As he shares charming photos of nature's finest aerial architecture, Pretor-Pinney calls for us all to t
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Visualizing Ultrasound with Schlieren Optics Part II

239 views / 0 likes - added 3 years ago

Part 2 of 3. We use our strobing schlieren system to look at diffraction and standing wave patterns in air created by an ultrasonic transducer (driven at 28 kHz) and a reflecting glass plate.More information about our schlieren optics set-up and how it wo
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How Tsunamis Work - Alex Gendler

3,170 views / 19 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/how-tsunamis-work-alex-gendler The immense swell of a tsunami can grow up to 100 feet, hitting speeds over 500 mph -- a treacherous combination for anyone or anything in its path. Alex Gendler details the causes
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The Invisible Motion Of Still Objects - Ran Tivony

624 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/the-invisible-motion-of-still-objects-ran-tivony Many of the inanimate objects around you probably seem perfectly still. But look deep into the atomic structure of any of them, and you’ll see a world in constant
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The Case Of The Vanishing Honeybees - Emma Bryce

753 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/the-case-of-the-vanishing-honeybees-emma-bryce In the past decade, the US honeybee population has been decreasing at an alarming and unprecedented rate. While this is obviously bad news for honeypots everywhere,
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How Do We Smell? - Rose Eveleth

925 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/how-do-we-smell-rose-eveleth An adult human can distinguish up to 10,000 odors. You use your nose to figure out what to eat, what to buy and even when it's time to take a shower. But how do the molecules in the
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How Languages Evolve - Alex Gendler

1,033 views / 2 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/how-languages-evolve-alex-gendler Over the course of human history, thousands of languages have developed from what was once a much smaller number. How did we end up with so many? And how do we keep track of the
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Katy Perry - Firework (Official)

1,069 views / 6 likes - added 5 years ago

Get “Firework” from Katy Perry’s ‘Teenage Dream’: http://katy.to/TeenageDream Katy Perry Complete Collection on Spotify: http://katy.to/SpotifyCompleteYD Katy Perry Essentials on Apple Music: http://katy.to/AMEssentialsYD Wat
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The History Of Tattoos - Addison Anderson

735 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/the-history-of-tattoos-addison-anderson If you have a tattoo, you’re part of a rich cultural history that dates back at least 8,000 years. Where did this practice of body modification come from, and how has its
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What Is The Universe Made Of? - Dennis Wildfogel

923 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/what-is-the-universe-made-of-dennis-wildfogel The atoms around you have existed for billions of years -- and most originated in the flaming, gaseous core of a star. Dennis Wildfogel tells the captivating tale of
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What causes cavities? - Mel Rosenberg

1,356 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/what-causes-cavities-mel-rosenberg When a team of archeologists recently came across some 15,000-year-old human remains, they made an interesting discovery: the teeth of those ancient humans were riddled with ho
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Why do we itch? - Emma Bryce

1,019 views / 1 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/why-do-we-itch-emma-bryce The average person experiences dozens of individual itches each day. We’ve all experienced the annoyance of an inconvenient itch — but have you ever pondered why we itch in the first pl
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How the stethoscope was invented | Moments of Vision 7 - Jessica Oreck

695 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/how-the-stethoscope-was-invented-moments-of-vision-7-jessica-oreck The stethoscope is the single most widely used medical instrument in the world. But where did the idea come from? In the seventh installment of
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06:34 Popular
How To Draw A Cartoon Grandpa

1,950 views / 2 likes - added 6 years ago

Follow along with us and learn how to draw a cartoon grandpa! We know that not all grandpas look the same, but that's what makes this lesson fun. You can challenge your kids to change this lesson and make it look more like the grandpa they love! Change th
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My Teacher Took My Phone & My Grades | SCRAPBOOK MY LIFE

206 views / 0 likes - added 2 years ago

After rushing through the math test, Sarah gets caught being sneaky while playing a video game on her phone in class. Not only does she get her phone confiscated, but she got the lowest grade she ever received on a math test. Credits Written by Claire Dow
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The Science Of Symmetry - Colm Kelleher

1,219 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/the-science-of-symmetry-colm-kelleher When you hear the word symmetry, you might think generally of triangles, butterflies, or even ballerinas. But defined scientifically, symmetry is "a transformation that leav
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How The Food You Eat Affects Your Brain - Mia Nacamulli

1,087 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/how-the-food-you-eat-affects-your-brain-mia-nacamulli When it comes to what you bite, chew and swallow, your choices have a direct and long-lasting effect on the most powerful organ in your body: your brain. So
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What happens when you have a concussion? - Clifford Robbins

659 views / 1 likes - added 6 years ago

View full lesson: https://ed.ted.com/lessons/what-happens-when-you-have-a-concussion-clifford-robbins Each year in the United States, players of sports and recreational activities receive between 2.5 and 4 million concussions. How dangerous are all those
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The Battle Of The Greek Tragedies - Melanie Sirof

797 views / 2 likes - added 9 years ago

View full lesson: http://ed.ted.com/lessons/the-battle-of-the-greek-tragedies-melanie-sirof The world of modern theater owes its roots to the tragedians of Ancient Greece. As far back as the 5th Century BCE, actors and playwrights were entertaining the ma
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If Superpowers Were Real: Immortality - Joy Lin

907 views / 0 likes - added 8 years ago

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

760 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/if-superpowers-were-real-invisibility-joy-lin What if invisibility wasn't just the stuff of epic comic book stories? Is it scientifically possible to be invisible? In this series, Joy Lin tackles six superpowers
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One of the most difficult words to translate... - Krystian Aparta

1,125 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/one-of-the-most-difficult-words-to-translate-krystian-aparta As simple as it seems, it’s often impossible to accurately translate the word you without knowing a lot more about the situation where it’s being said
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What caused the French Revolution? - Tom Mullaney

883 views / 1 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/what-caused-the-french-revolution-tom-mullaney What rights do people have, and where do they come from? Who gets to make decisions for others, and on what authority? And how can we organize society to meet peopl
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How Cell Service Actually Works

154 views / 1 likes - added 2 years ago

Sign up for a CuriosityStream subscription and also get a free Nebula subscription (the streaming platform built by creators) here: http://CuriosityStream.com/wendoverWatch Extremities at http://youtube.com/extremitiesBuy a Wendover Productions t-shirt: h
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What We Know (and Don't Know) About Ebola - Alex Gendler

774 views / 1 likes - added 9 years ago

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

911 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/the-power-of-the-placebo-effect-emma-bryce The placebo effect is an unexplained phenomenon wherein drugs, treatments, and therapies that aren’t supposed to have an effect — and are often fake — miraculously make
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If Superpowers Were Real: Flight - Joy Lin

832 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/if-superpowers-were-real-flight-joy-lin What if human flight wasn't just the stuff of epic comic book stories? Is it scientifically possible to fly? In this series, Joy Lin tackles six superpowers and reveals ju
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Beatboxing 101 - BEAT NYC

799 views / 0 likes - added 8 years ago

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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How the popsicle was invented | Moments of Vision 11 - Jessica Oreck

1,300 views / 2 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/how-the-popsicle-was-invented-moments-of-vision-11-jessica-oreck Each year, approximately 2 billion popsicles are sold worldwide. But where did the idea for this tasty treat come from? In the eleventh installmen
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Deep neural networks explained with a physical circuit (how AI systems learn)

144 views / 0 likes - added 1 year ago

Learn the basics of how neural networks work using a simple physical model of knobs, transistors and lightbulbs. See neuron activation patterns in action and develop you intuition of the power of training using backpropagation. A perfect introduction for
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An Exercise In Time Perception - Matt Danzico

769 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/an-exercise-in-time-perception-matt-danzico Why is that some experiences feel like they last forever, while others fly by? We tend to miscalculate the time it takes to engage in novel activities due to the influ
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Why Do We Hiccup? - John Cameron

1,147 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/why-do-we-hiccup-john-cameron The longest recorded case of hiccups lasted for 68 years … and was caused by a falling hog. While that level of severity is extremely uncommon, most of us are no stranger to an occa
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Where Does Wind Come From? | The Science of Flying | SciShow Kids

1,033 views / 1 likes - added 1 year ago

As Squeaks continues to prep for his big trip with Jessi, Mr. Brown helps him learn all about how the wind outside the fort will also affect how long his airplane ride with Jessi takes! Teachers and parents: scroll down to check out the Next Generation Sc
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The Science Of Snowflakes - Maruša Bradač

716 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/the-science-of-snowflakes-marusa-bradac One could say that snowflakes are simply frozen water — but if you compare a snowflake to an ice cube, you’ll notice a big difference. Why are all snowflakes six-sided? Wh
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I Broke ChatGPT With This Paradox

56 views / 0 likes - added 2 months ago

You can get started with InVideo AI for free here: https://invideo.io/i/ActionLabYou can create up to 4 videos for free but with a watermark, but if youre serious about video creation and want to publish videos without a watermark (which I highly recommen
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Should You Trust Your First Impression? - Peter Mende-Siedlecki

1,130 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/should-you-trust-your-first-impression-peter-mende-siedlecki You can't help it; sometimes, you just get a bad feeling about someone that's hard to shake. So, what's happening in your brain when you make that cri
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How Statistics Can Be Misleading - Mark Liddell

1,229 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/how-statistics-can-be-misleading-mark-liddell Statistics are persuasive. So much so that people, organizations, and whole countries base some of their most important decisions on organized data. But any set of s
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Do Fad Diets Work? - Mia Nacamulli

1,422 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/do-fad-diets-work-mia-nacamulli Conventional wisdom about diets, including government health recommendations, seems to change all the time. And yet ads routinely come out claiming to have THE answer about what w
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Which Sunscreen Should You Choose? - Mary Poffenroth

843 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/which-sunscreen-should-you-choose-mary-poffenroth Sunscreen comes in many forms, each with its own impacts on your body and the environment. With so many options, how do you choose which sunscreen is best for yo
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How Braille was invented | Moments of Vision 9 - Jessica Oreck

1,562 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/how-braille-was-invented-moments-of-vision-9-jessica-oreck Today, Braille is the universally accepted system of writing for the blind, translated into almost every language in almost every country across the glo
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Why Do Some People Have Seasonal Allergies? - Eleanor Nelsen

1,216 views / 0 likes - added 8 years ago

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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Why Wildfires Are Necessary - Jim Schulz

2,064 views / 6 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/why-wildfires-are-necessary-jim-schulz Our early ancestors relied on lightning to cause forest fires, from which they could collect coals and burning sticks to help them cook food and clear land. Yet, it wasn’t
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03:36 Popular
How To Use A Semicolon - Emma Bryce

872 views / 1 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/how-to-use-a-semicolon-emma-bryce It may seem like the semicolon is struggling with an identity crisis. It looks like a comma crossed with a period. Maybe that’s why we toss these punctuation marks around like g
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How To Draw A Snowglobe

967 views / 1 likes - added 6 years ago

Follow along with us and learn how to draw a snowglobe. This is a perfect lesson to change. During the first steps to this lesson, we show you how to draw a snowglobe. Then when we start drawing the snowmen, you can pause the video and draw something comp
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The Cancer Gene We All Have - Michael Windelspecht

728 views / 1 likes - added 8 years ago

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
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Can You Solve The Locker Riddle? - Lisa Winer

2,025 views / 1 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/can-you-solve-the-locker-riddle-lisa-winer Your rich, eccentric uncle just passed away, and you and your 99 nasty relatives have been invited to the reading of his will. He wanted to leave all of his money to yo
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What Would Happen If You Didn’t Drink Water? - Mia Nacamulli

1,467 views / 4 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/what-would-happen-if-you-didn-t-drink-water-mia-nacamulli Water is essentially everywhere in our world, and the average human is composed of between 55 and 60% water. So what role does water play in our bodies,
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The simple story of photosynthesis and food - Amanda Ooten

908 views / 0 likes - added 6 years ago

View full lesson: http://ed.ted.com/lessons/the-simple-but-fascinating-story-of-photosynthesis-and-food-amanda-ooten Photosynthesis is an essential part of the exchange between humans and plants. Amanda Ooten walks us through the process of photosynthesis
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How False News Can Spread - Noah Tavlin

1,090 views / 1 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/how-false-news-can-spread-noah-tavlin In previous decades, most news with global reach came from several major newspapers and networks with the resources to gather information directly. The speed with which info
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Why should you listen to Vivaldi's "Four Seasons"? - Betsy Schwarm

789 views / 1 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/why-should-you-listen-to-vivaldi-s-four-seasons-betsy-schwarm Light, bright, and cheerful, "The Four Seasons" by Antonio Vivaldi is some of the most familiar of all early 18th century music, featured in numerous
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A clever way to estimate enormous numbers - Michael Mitchell

1,161 views / 0 likes - added 6 years ago

View the full lesson here: http://ed.ted.com/lessons/michael-mitchell-a-clever-way-to-estimate-enormous-numbers Have you ever tried to guess how many pieces of candy there are in a jar? Or tackled a mindbender like: "How many piano tuners are there in Chi
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3 Tips To Boost Your Confidence

1,015 views / 0 likes - added 8 years ago

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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Where Did English Come From? - Claire Bowern

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

View full lesson: http://ed.ted.com/lessons/where-did-english-come-from-claire-bowern When we talk about ‘English’, we often think of it as a single language. But what do the dialects spoken in dozens of countries around the world have in common with each
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How Smart Are Dolphins? - Lori Marino

1,978 views / 8 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/how-smart-are-dolphins-lori-marino Dolphins are one of the smartest animal species on Earth. In fact, their encephalization quotient (their brain size compared to the average for their body size) is second only
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Will we ever be able to teleport? - Sajan Saini

659 views / 0 likes - added 6 years ago

View full lesson: https://ed.ted.com/lessons/will-we-ever-be-able-to-teleport-sajan-saini Is teleportation possible? Could a baseball transform into something like a radio wave, travel through buildings, bounce around corners, and change back into a baseb
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Ugly History: Cambodian Genocide - Timothy Williams

202 views / 0 likes - added 2 years ago

Dig into the era of the Khmer Rouge in Cambodia, which perpetuated a genocide that killed a quarter of the countrys population. --From 1975 to 1979, the Communist Party of Kampuchea ruled Cambodia with an iron fist, perpetrating a genocide that killed one
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How To Unboil An Egg - Eleanor Nelsen

776 views / 1 likes - added 9 years ago

View full lesson: http://ed.ted.com/lessons/how-to-unboil-an-egg-eleanor-nelsen It’s so obvious that it’s practically proverbial: you can’t unboil an egg. But actually, it turns out that you can -- sort of. Eleanor Nelsen explains the process by which mec
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The Science Of Macaroni Salad: What's In A Molecule? - Josh Kurz

596 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/the-science-of-macaroni-salad-what-s-in-a-molecule-josh-kurz What do macaroni salad and gasoline have in common? They are made of exactly the same stuff -- specifically, the same atoms, just rearranged. So, whil
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A Guide To The Energy Of The Earth - Joshua M. Sneideman

1,636 views / 1 likes - added 9 years ago

View full lesson: http://ed.ted.com/lessons/a-guide-to-the-energy-of-the-earth-joshua-m-sneideman Energy is neither created nor destroyed — and yet the global demand for it continues to increase. But where does energy come from, and where does it go? Josh
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Disappearing Frogs - Kerry M. Kriger

882 views / 5 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/disappearing-frogs-kerry-m-kriger Frogs (and amphibians in general) are in danger -- worldwide, nearly one-third of the world's amphibian species are on the verge of extinction. And yet, frogs contribute to our
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Can you find the next number in this sequence? - Alex Gendler

2,356 views / 1 likes - added 6 years ago

View full lesson: http://ed.ted.com/lessons/can-you-find-the-next-number-in-this-sequence-alex-gendler 1, 11, 21, 1211, 111221. These are the first five elements of a number sequence. Can you figure out what comes next? Alex Gendler reveals the answer and
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What Really Happens To The Plastic You Throw Away - Emma Bryce

1,383 views / 0 likes - added 9 years ago

View full lesson: http://ed.ted.com/lessons/what-really-happens-to-the-plastic-you-throw-away-emma-bryce We’ve all been told that we should recycle plastic bottles and containers. But what actually happens to the plastic if we just throw it away? Emma Bry
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What’s Behind this Giant Chessboard Pattern in Idaho? | What on Earth?

367 views / 0 likes - added 5 years ago

Satellites capture a series of giant checkerboard patterns in the US, some several miles wide. Investigators uncover the brutal story of their creation. Stream Full Episodes of What on Earth?: https://www.sciencechannel.com/tv-shows/what-on-earth/ Subscri
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Can You Solve The Bridge Riddle? - Alex Gendler

2,071 views / 3 likes - added 8 years ago

View full lesson: https://ed.ted.com/lessons/can-you-solve-the-bridge-riddle-alex-gendler Taking that internship in a remote mountain lab might not have been the best idea. Pulling that lever with the skull symbol just to see what it did probably wasn’t s
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How X-rays See Through Your Skin - Ge Wang

1,096 views / 3 likes - added 9 years ago

View full lesson: http://ed.ted.com/lessons/how-x-rays-see-through-your-skin-ge-wang Originally discovered by accident, X-rays are now used about 100 million times a year in clinics around the world. How do these magic eyes work? Ge Wang details the histo
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Why Do We Dream? - Amy Adkins

1,608 views / 2 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/why-do-we-dream-amy-adkins In the 3rd millennium BCE, Mesopotamian kings recorded and interpreted their dreams on wax tablets. In the years since, we haven't paused in our quest to understand why we dream. And w
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Why Do Our Bodies Age? - Monica Menesini

734 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/why-do-our-bodies-age-monica-menesini Human bodies aren’t built for extreme aging: our capacity is set at about 90 years. But what does aging really mean, and how does it counteract the body’s efforts to stay al
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Does your vote count? The Electoral College explained - Christina Greer

627 views / 0 likes - added 6 years ago

View full lesson: http://ed.ted.com/lessons/does-your-vote-count-the-electoral-college-explained-christina-greer You vote, but then what? Discover how your individual vote contributes to the popular vote and your state's electoral vote in different ways--
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Hexaflexaflakes

597 views / 0 likes - added 6 years ago

I hope you enjoy this fun holiday craft! This video is supported by viewers like you! Thanks especially to: Caleb Wright, Albert Wenger, CHLOE, Pat Devlin, Jack Heidrick, Al3x, David Perryman, Wish Society, Carol Ghiorsi Hart, Chris Pierik, Andrea Di Biag
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What's The Definition Of Comedy? Banana. - Addison Anderson

1,050 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/what-s-the-definition-of-comedy-banana-addison-anderson What makes us giggle and guffaw? The inability to define comedy is its very appeal; it is defined by its defiance of definition. Addison Anderson riffs on
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How To Make A Mummy - Len Bloch

1,220 views / 0 likes - added 9 years ago

View full lesson: http://ed.ted.com/lessons/how-to-make-a-mummy-len-bloch As anyone who’s seen a mummy knows, ancient Egyptian priests went to a lot of trouble to evade decomposition. But how successful were they? Len Bloch details the mummification proce
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Why do competitors open their stores next to one another? - Jac de Haan

621 views / 0 likes - added 6 years ago

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
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The Benefits Of Good Posture - Murat Dalkiniç

1,105 views / 2 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/the-benefits-of-good-posture-murat-dalkinic Has anyone ever told you, “Stand up straight!” or scolded you for slouching at a family dinner? Comments like that might be annoying—but they’re not wrong. Your postur
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Can You Solve The Passcode Riddle? - Ganesh Pai

1,422 views / 2 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/can-you-solve-the-passcode-riddle-ganesh-pai In a dystopian world, your resistance group is humanity’s last hope. Unfortunately, you’ve all been captured by the tyrannical rulers and brought to the ancient colis
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Is it bad to hold your pee? - Heba Shaheed

873 views / 4 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/is-it-bad-to-hold-your-pee-heba-shaheed Humans should urinate at least four to six times a day, but occasionally, the pressures of modern life force us to clench and hold it in. How bad is this habit, and how lo
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Can you solve the river crossing riddle? - Lisa Winer

1,825 views / 3 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/can-you-solve-the-river-crossing-riddle-lisa-winer As a wildfire rages through the grasslands, three lions and three wildebeest flee for their lives. To escape the inferno, they must cross over to the left bank
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What is McCarthyism? And how did it happen? - Ellen Schrecker

613 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/what-is-mccarthyism-and-how-did-it-happen-ellen-schrecker In the 1950s, as part of a campaign to expose suspected Communists, thousands of individuals were aggressively investigated and questioned before governm
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What's Inside a Pinecone? | Winter is Alive! | SciShow Kids

221 views / 0 likes - added 2 years ago

Jessi and Squeaks learn all about pine cones and their seeds today! Did you know that pine cones can open and close to help protect their seeds? Hosted by: Jessi Knudsen Castaeda----------First Grade Next Generation Science StandardsDisciplinary Core Idea
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Where Do Genes Come From? - Carl Zimmer

1,868 views / 0 likes - added 9 years ago

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

2,084 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/are-preservatives-bad-for-you-eleanor-nelsen Food doesn’t last. In days, sometimes hours, bread goes moldy, apple slices turn brown, and bacteria multiply in mayonnaise. But you can find all of these foods out o
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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

846 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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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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Where do superstitions come from? - Stuart Vyse

878 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

789 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

755 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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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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5 Times Our Shows Were Self-Aware | Cartoon Network

518 views / 0 likes - added 6 years ago

The fourth wall is BROKEN! Here are the TOP 5 times our shows were super self-aware. CN GAMES: http://bit.ly/CNGames SUBSCRIBE: http://bit.ly/109Y6wq WATCH MORE: http://bit.ly/1RBYuNi About Cartoon Network: Welcome to the Cartoon Network YouTube Channel,
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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

874 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

2,929 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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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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How To Draw James Madison - Happy Presidents Day

699 views / 1 likes - added 4 years ago

Happy Presidents Day! We thought it would be fun to celebrate by learning how to draw James Madison, the fourth president of the United States. Join our monthly membership and download our app! You can watch our lessons in a safe distraction-free environm
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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

914 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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History vs. Cleopatra - Alex Gendler

1,421 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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Sneaking Out Of My House In The Middle Of The Night

1,133 views / 2 likes - added 5 years ago

By Alyssa | Ready to "wear it out loud?” Merch store open, SHOP NOW: http://bit.ly/storybooth-merch | Subscribe: http://bit.ly/sub2storybooth | Record your story @ https://storybooth.com or our iPhone app for a chance to get animated. Comment, like, share
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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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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
03:46 Popular
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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02:58
How To Take A Great Picture - Carolina Molinari

647 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
04:36 Popular
Should We Be Looking For Life Elsewhere In The Universe? - Aomawa Shields

936 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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05:49
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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Pluto's mysterious polygons explained

163 views / 0 likes - added 2 years ago

Polygonal shapes cover the icy surface of Plutos Sputnik Planitia region. The patterns, photographed by NASAs New Horizons mission, are thought to be the result of slow-moving convection currents in the ice. Now, a new model shows that the driving force b
04:04 Popular
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
04:08 Popular
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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03:14 Popular
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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11:33 Popular
The Crusades - Pilgrimage or Holy War?: Crash Course World History #15

1,003 views / 0 likes - added 9 years ago

In which John Green teaches you about the Crusades embarked upon by European Christians in the 12th and 13th centuries. Our traditional perception of the Crusades as European Colonization thinly veiled in religion isn't quite right. John covers the First
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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03:20
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
04:32 Popular
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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03:50
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
24:05
The Care Bears Battle The Freeze Machine

633 views / 0 likes - added 6 years ago

Release date: April 6, 1984 Paul, a young boy, wants to get even with his bullies as Professor Coldheart tricks him into fixing his Careless Ray Contraption after Frostbite ruined it by accident. The Care Bears must do all that they can to stop Coldheart'
04:45 Popular
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
04:24 Popular
How Do We Know What Color Dinosaurs Were? - Len Bloch

1,214 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

846 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,
03:42 Popular
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
04:05 Popular
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
04:51 Popular
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
04:33 Popular
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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03:37 Popular
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
15:16 Popular
Planck's Constant and The Origin of Quantum Mechanics | Space Time | PBS Digital Studios

1,252 views / 0 likes - added 7 years ago

To check out any of the lectures available from Great Courses Plus go to http://ow.ly/K9mK301cRdj and get ready to learn about everything from cooking to calculus. Previous episode on Quantum Tunneling and the de Broglie Wavelength: https://www.youtube.co
05:03 Popular
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

214 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
04:52 Popular
Why Do Buildings Fall In Earthquakes? - Vicki V. May

1,474 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

1,410 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?
03:50 Popular
How is power divided in the United States government? - Belinda Stutzman

1,137 views / 0 likes - added 6 years ago

View full lesson: http://ed.ted.com/lessons/how-is-power-divided-in-the-united-states-government-belinda-stutzman Article II of the United States Constitution allows for three separate branches of government (legislative, executive, and judicial), along w
04:12 Popular
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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04:50 Popular
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
04:13 Popular
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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04:26 Popular
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
04:54 Popular
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
04:16 Popular
The Ethical Dilemma Of Self-driving Cars - Patrick Lin

912 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
04:33 Popular
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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04:30
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
04:07 Popular
What Is The Biggest Single-celled Organism? - Murry Gans

1,874 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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07:12 Popular
How To Draw St. Patrick's Day - Spotlight

870 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
04:36 Popular
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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05:18 Popular
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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17:44
Is This the Best Taco in the World?

404 views / 0 likes - added 5 years ago

This film isn't just about a taco. It's about Ralph Gilmore, a guy with an eighth-grade education who became a millionaire. And then he lost it all. And then he became a millionaire again. And then he lost it all--again. Finally, he bought a used shipping
06:40 Popular
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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