Search Results: "naacp ed nixon"

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

1,135 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
04:50 Popular
The three different ways mammals give birth - Kate Slabosky

724 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

958 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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Science vs. Pseudoscience - Siska De Baerdemaeker

1,093 views / 0 likes - added 10 months ago

Get to know 3 factors that can help you identify pseudoscience, and find out how it differs from actual science.--Pseudoscience is a set of theories, methods, and assumptions that appear scientific, but arent. In the worst cases, pseudoscience practitione
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04:54 Popular
Can you solve the three gods riddle? - Alex Gendler

1,298 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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What “Machiavellian” really means - Pazit Cahlon and Alex Gendler

539 views / 0 likes - added 5 years ago

Download a free audiobook version of "The Art of War" and support TED-Ed's nonprofit mission: https://adbl.co/2CDGJi9 Check out our full book recommendation: https://shop.ed.ted.com/products/the-art-of-war -- From Shakespeare’s plays to modern TV dramas,
04:16 Popular
The Ethical Dilemma Of Self-driving Cars - Patrick Lin

911 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

812 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

657 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

1,869 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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05:19
Is it normal to talk to yourself?

117 views / 0 likes - added 1 year ago

Dig into the psychological benefits of positive self-talk, and find out when it can become problematic.--Being caught talking to yourself can feel embarrassing, and some people even stigmatize this behavior as a sign of mental instability. But decades of
05:18 Popular
Do we really need pesticides? - Fernan Pérez-Gálvez

1,356 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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06:40 Popular
Cloudy Climate Change: How Clouds Affect Earth's Temperature - Jasper Kirkby

738 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
04:35 Popular
What Causes Antibiotic Resistance? - Kevin Wu

1,535 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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Getting Started As A DJ: Mixing, Mashups And Digital Turntables - Cole Plante

616 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/getting-started-as-a-dj-mixing-mashups-and-digital-turntables-cole-plante DJ and producer Cole Plante is only 17 years old, but he's already worked alongside industry superstars Skrillex, Avicii and Major Lazer
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04:20 Popular
What Makes Muscles Grow? - Jeffrey Siegel

1,789 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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04:30
How does the stock market work? - Oliver Elfenbaum

484 views / 1 likes - added 5 years ago

Download a free audiobook version of "The Richest Man in Babylon" and support TED-Ed's nonprofit mission: https://adbl.co/2GVBdZF Check out our full book recommendation: https://shop.ed.ted.com/products/the-richest-man-in-babylon -- In the 1600s, the Dutc
03:25 Popular
The Deadly Irony Of Gunpowder - Eric Rosado

774 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

666 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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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

674 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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04:52
What's Below The Tip Of The Iceberg? - Camille Seaman

604 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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03:49
Exponential Growth: How Folding Paper Can Get You to the Moon

402 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
04:28 Popular
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
05:01 Popular
How Quantum Mechanics Explains Global Warming - Lieven Scheire

1,568 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
03:46 Popular
You are your microbes - Jessica Green and Karen Guillemin

1,337 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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05:10 Popular
How does asthma work? - Christopher E. Gaw

1,786 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 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
03:52 Popular
Solid, Liquid, Gas And … Plasma? - Michael Murillo

1,668 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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01:49 Popular
How the sandwich was invented | Moments of Vision 5 - Jessica Oreck

877 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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04:44 Popular
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
05:16 Popular
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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03:21 Popular
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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04:27
A Brief History Of Plural Word...s - John McWhorter

680 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

869 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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05:21 Popular
Reasons For The Seasons - Rebecca Kaplan

829 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 drugs affect the brain? - Sara Garofalo

1,675 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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04:58 Popular
The history of tea - Shunan Teng

989 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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04:56 Popular
How far would you have to go to escape gravity? - Rene Laufer

713 views / 0 likes - added 5 years ago

Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/how-far-would-you-have-to-go-to-escape-gravity-rene-laufer Every star, black hole, human being, smartphone and atom are all constantly pulling on each o
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How Sugar Affects The Brain - Nicole Avena

854 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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02:16
Mysteries Of Vernacular: Dynamite - Jessica Oreck And Rachael Teel

637 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
05:58 Popular
The Great Conspiracy Against Julius Caesar - Kathryn Tempest

785 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

934 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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05:31 Popular
Is There A Difference Between Art And Craft? - Laura Morelli

780 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
04:37 Popular
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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04:11 Popular
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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05:44 Popular
The History Of Museums - J. V. Maranto

751 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

992 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

903 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

540 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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Is inequality inevitable?

161 views / 0 likes - added 1 year ago

Explore how economic inequality can be measured and how it is impacted by different governmental policy choices.--Income and wealth inequality are not new. In fact, economists and historians who have charted economic inequality throughout history havent f
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Pros And Cons Of Public Opinion Polls - Jason Robert Jaffe

936 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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03:57 Popular
The Science Of Macaroni Salad: What's In A Mixture? - Josh Kurz

975 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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03:07 Popular
How Mendel's pea plants helped us understand genetics - Hortensia Jiménez Díaz

1,534 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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What is bipolar disorder? - Helen M. Farrell

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

534 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

1,094 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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05:31 Popular
Why should you read "One Hundred Years of Solitude"? - Francisco Díez-Buzo

721 views / 0 likes - added 5 years ago

Download a free audiobook version of "One Hundred Years of Solitude" and support TED-Ed's nonprofit mission: https://adbl.co/2LHl4XM Check out our full book recommendation: http://bit.ly/2PgPKS6 View full lesson: https://ed.ted.com/lessons/why-should-you-
04:39 Popular
The Psychology Behind Irrational Decisions - Sara Garofalo

894 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

862 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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04:47 Popular
Inside The Ant Colony - Deborah M. Gordon

860 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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04:37 Popular
The Law Of Conservation Of Mass - Todd Ramsey

2,426 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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05:13 Popular
How do whales sing? - Stephanie Sardelis

988 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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05:56 Popular
How One Teenager Unearthed Baseball's Untold History - Cam Perron

715 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/how-one-teenager-unearthed-baseball-s-untold-history-cam-perron Teenager Cam Perron loved baseball, so he began writing letters to the veteran players on his baseball cards. He only wanted autographs, but eventu
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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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04:35 Popular
Why are we so attached to our things? - Christian Jarrett

779 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

1,068 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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Is Radiation Dangerous? - Matt Anticole

1,104 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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04:18
Why Is The US Constitution So Hard To Amend? - Peter Paccone

685 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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04:20 Popular
How Batteries Work - Adam Jacobson

1,544 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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04:46 Popular
How Do We Study The Stars? - Yuan-Sen Ting

1,592 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
04:25 Popular
The Arctic Vs. The Antarctic - Camille Seaman

965 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

665 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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06:41
Is capitalism actually broken?

188 views / 0 likes - added 1 year ago

Explore the different types of capitalism, how they operate, and how they impact issues like climate change and rising inequality.--People have become increasingly worried that the threats we face today, like climate change and rising inequality, cant be
04:58 Popular
Your Brain Can Solve Algorithms - David J. Malan

1,007 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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Why is it so hard to cure the common cold?

761 views / 1 likes - added 1 year ago

Dig into the two main ways we fight the viruses that cause the common cold, and find out if its possible to create a cure. --On average, adults catch more than 150 colds throughout their lives. Even with similar symptoms, the cause could be different each
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04:50 Popular
Can you solve the fish riddle? - Steve Wyborney

1,368 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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How to deal with rejection

116 views / 0 likes - added 1 year ago

Dig into the psychology of why rejection causes us pain, and explore strategies to cope with this common experience.--Rejection hurts. Its incredibly painful to feel like youre not wanted and we do mean painful. Researchers found that we relate rejection
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The Evolution Of The Human Eye - Joshua Harvey

2,313 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

1,179 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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05:38
What is a gig economy?

185 views / 0 likes - added 1 year ago

Explore the benefits and drawbacks of the gig economy, and find out the key factors of becoming a successful freelancer.--A 2016 survey of freelancers in six countries found that those who freelance by choice 70% of respondents were happier than people in
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How Fast Are You Moving Right Now? - Tucker Hiatt

548 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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When is anger justified? A philosophical inquiry - Delaney Thull

51 views / 0 likes - added 3 months ago

Explore different philosophers ideas about anger and dig into their theories on how we should handle this complicated emotion.--Anger is a complicated emotion. It can feel reasonable and righteous or impulsive and uncontrollable. Anger can be an important
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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

1,096 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

593 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

1,427 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

1,166 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

612 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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When are you actually an adult? - Shannon Odell

157 views / 0 likes - added 1 year ago

Explore how scientists define adulthood, and find out if theres a specific age at which we reach maturity. --Most countries recognize 18 as the start of adulthood by granting various freedoms and privileges. Yet theres no exact age or moment in developmen
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How Do Germs Spread (and Why Do They Make Us Sick)? - Yannay Khaikin And Nicole Mideo

777 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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How Whales Breathe, Communicate...and Fart With Their Faces - Joy Reidenberg

900 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/how-whales-breathe-communicate-and-fart-with-their-faces-joy-reidenberg Comparative anatomist Joy Reidenberg studies the body structure of many different animals in the hope of adapting their unique qualities fo
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Where we get our fresh water - Christiana Z. Peppard

1,597 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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My Glacier Cave Discoveries - Eddy Cartaya

573 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/my-glacier-cave-discoveries-eddy-cartaya Snow Dragon. Pure Imagination. Frozen Minotaur. These are the names Eddy Cartaya and his climbing partner Brent McGregor gave three glacier caves that they were the first
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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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04:54 Popular
History Vs. Andrew Jackson - James Fester

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

1,009 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

1,047 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

855 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

665 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

1,048 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

853 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

763 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

728 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

1,151 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

777 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

959 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

1,376 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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04:03
The benefits of daydreaming - Elizabeth Cox

376 views / 0 likes - added 1 year ago

Enter the mind of a bored teenager to discover what happens in the brain when we daydream and find out what purpose it serves.--On a daily basis, you spend between a third and half of your waking hours daydreaming. That may sound like a huge waste of time
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What Is Déjà Vu? What Is Déjà Vu? - Michael Molina

558 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

937 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

902 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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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 Percentage Of Your Brain Do You Use? - Richard E. Cytowic

782 views / 0 likes - added 8 years ago

http://ed.ted.com/lessons/what-percentage-of-your-brain-do-you-use-richard-e-cytowic Two thirds of the population believes a myth that has been propagated for over a century: that we use only 10% of our brains. Hardly! Our neuron-dense brains have evolved
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What is entropy? - Jeff Phillips

1,627 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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04:55 Popular
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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How to get motivated even when you dont feel like it

36 views / 0 likes - added 5 months ago

Explore the psychology of intrinsic and extrinsic motivation, and dig into how these forces contribute to our drive.--Motivation is complicated. Psychologists define motivation as the desire or impetus to initiate and maintain a particular behavior. But s
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Where Did Russia Come From? - Alex Gendler

913 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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04:46 Popular
The Threat Of Invasive Species - Jennifer Klos

2,723 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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09:04 Popular
A Digital Reimagining Of Gettysburg - Anne Knowles

832 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/a-digital-reimagining-of-gettysburg-anne-knowles Geographer Anne Knowles uses digital technologies to reimagine the past. In this fascinating talk, Knowles transports us to the Battle of Gettysburg, the turning
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Eli The Eel: A Mysterious Migration - James Prosek

905 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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Making Waves: The Power Of Concentration Gradients - Sasha Wright

1,052 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

1,575 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

1,063 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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04:39 Popular
Can Plants Talk To Each Other? - Richard Karban

1,372 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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04:32 Popular
The Science Behind The Myth: Homer's

764 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

1,444 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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What Is A Gift Economy? - Alex Gendler

787 views / 2 likes - added 9 years ago

View full lesson: http://ed.ted.com/lessons/what-is-a-gift-economy-alex-gendler What if, this holiday season, instead of saying "thank you" to your aunt for her gift of a knitted sweater, the polite response expected from you was to show up at her house i
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What Earth in 2050 could look like - Shannon Odell

57 views / 0 likes - added 2 months ago

What could our future world look like if we continue to do nothing about climate change? Take a look at the possibilities.--While were already feeling the devastating effects of human-caused climate change, governments continue to fall short on making and
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The Effects Of Underwater Pressure On The Body - Neosha S Kashef

786 views / 0 likes - added 9 years ago

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

1,322 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/why-are-human-bodies-asymmetrical-leo-q-wan Symmetry is everywhere in nature. And we usually associate it with beauty: a perfectly shaped leaf or a butterfly with intricate patterns mirrored on each wing. But it
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Can you solve the counterfeit coin riddle? - Jennifer Lu

931 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/can-you-solve-the-counterfeit-coin-riddle-jennifer-lu You’re the realm’s greatest mathematician, but ever since you criticized the Emperor’s tax laws, you’ve been locked in the dungeon. Luckily for you, one of t
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Mary's room: A philosophical thought experiment - Eleanor Nelsen

781 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/mary-s-room-a-philosophical-thought-experiment-eleanor-nelsen Imagine a neuroscientist who has only ever seen black and white things, but she is an expert in color vision and knows everything about its physics a
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The Pharaoh That Wouldn't Be Forgotten - Kate Narev

1,195 views / 3 likes - added 9 years ago

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

941 views / 1 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/chemical-reactions-zaidan-and-morton When molecules collide, chemical reactions can occur -- causing major structural changes akin to getting a new arm on your face! George Zaidan and Charles Morton playfully im
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Why The Insect Brain Is So Incredible - Anna Stöckl

1,148 views / 2 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/why-the-insect-brain-is-so-incredible-anna-stockl The human brain is one of the most sophisticated organs in the world, a supercomputer made of billions of neurons that control all of our senses, thoughts, and a
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04:41 Popular
Making Sense Of Irrational Numbers

2,126 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/making-sense-of-irrational-numbers-ganesh-pai Like many heroes of Greek myths, the philosopher Hippasus was rumored to have been mortally punished by the gods. But what was his crime? Did he murder guests or dis
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3 tips on how to study effectively

998 views / 1 likes - added 8 months ago

Explore how the brain learns and stores information, and find out how to apply this for more effective study techniques.--A 2006 study took a class of surgical residents and split them into two groups. Each received the same study materials, but one group
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Medieval Europe: Crash Course European History #1

753 views / 1 likes - added 4 years ago

Our European history is going to start around 1500 with the Renaissance, but believe it or not, that is not the actual beginning of history in the continent. So, today, we're going to teach you the broad outlines of the so-called Middle Ages, and look at
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How Plants Tell Time - Dasha Savage

1,332 views / 0 likes - added 9 years ago

View full lesson: http://ed.ted.com/lessons/how-plants-tell-time-dasha-savage Morning glories unfurl their petals like clockwork in the early morning. A closing white waterlily signals that it’s late afternoon. And moon flowers, as their name suggests, on
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How do focus groups work? - Hector Lanz

579 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/how-do-focus-groups-work-hector-lanz Focus groups have been widely used by organizations and individuals to find out how their products and ideas will be received by an audience. From the usage of household prod
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The Hidden Worlds Within Natural History Museums - Joshua Drew

906 views / 0 likes - added 9 years ago

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

701 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/how-does-money-laundering-work-delena-d-spann Money laundering is the term for any process that “cleans” illegally obtained funds of their “dirty” criminal origins, allowing them to be used within the legal econ
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What Is The World Wide Web? - Twila Camp

1,659 views / 1 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/what-is-the-world-wide-web-twila-camp The World Wide Web is used every day by millions of people for everything from checking the weather to sharing cat videos. But what is it exactly? Twila Camp describes this
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The Science Of Stage Fright (and How To Overcome It) - Mikael Cho

794 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/the-science-of-stage-fright-and-how-to-overcome-it-mikael-cho Heart racing, palms sweating, labored breathing? No, you're not having a heart attack -- it's stage fright! If speaking in public makes you feel like
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What Is Depression? - Helen M. Farrell

717 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/what-is-depression-helen-m-farrell Depression is the leading cause of disability in the world; in the United States, close to ten percent of adults struggle with the disease. But because it’s a mental illness, i
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Free Falling In Outer Space - Matt J. Carlson

1,762 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/free-falling-in-outer-space-matt-j-carlson If you were to orbit the Earth, you'd experience the feeling of free fall, not unlike what your stomach feels before a big dive on a roller coaster. With a little help
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Why Do We Have To Wear Sunscreen? - Kevin P. Boyd

570 views / 1 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/why-do-we-have-to-wear-sunscreen-kevin-p-boyd You already know that a trip to the beach can give you a nasty sunburn, but the nitty gritty of sun safety is actually much more complex. Wrinkle-causing UVA rays an
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Can You Solve The Temple Riddle? - Dennis E. Shasha

1,003 views / 1 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/can-you-solve-the-temple-riddle-dennis-e-shasha Your expedition finally stands at the heart of the ancient temple. But as you study the inscriptions in the darkness, two wisps of green smoke burst forth. The wal
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Why Is Being Scared So Fun? - Margee Kerr

732 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/why-do-we-like-to-scare-ourselves-margee-kerr At this very moment, people are lining up somewhere to scare themselves, be it with a thrill-ride or a horror movie. In fact, in October of 2015 alone, about 28 mill
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04:30 Popular
5 Tips To Improve Your Critical Thinking - Samantha Agoos

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

View full lesson: http://ed.ted.com/lessons/5-tips-to-improve-your-critical-thinking-samantha-agoos Every day, a sea of decisions stretches before us, and it’s impossible to make a perfect choice every time. But there are many ways to improve our chances
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How does impeachment work? - Alex Gendler

751 views / 0 likes - added 6 years ago

Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/how-does-impeachment-work-alex-gendler For most jobs, it’s understood that you can be fired – whether for crime, incompetence, or just poor performance.
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4 epidemics that almost happened (but didn't) - George Zaidan

99 views / 0 likes - added 1 year ago

What makes for an effective outbreak response? Explore successful systems from around the world that prevented epidemics.--In 2013, an Ebola outbreak began in Guinea. The country had no formal response system and the outbreak became the largest Ebola epid
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Will there be another pandemic in your lifetime?

377 views / 0 likes - added 1 year ago

Explore the probability of a future pandemic and the steps we can take to reduce its destructiveness.--We tend to think of pandemics as unlikely events, but disease outbreaks are surprisingly common. Over the past 400 years, the longest stretch of time wi
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04:42 Popular
Why Do Blood Types Matter? - Natalie S. Hodge

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

View full lesson: http://ed.ted.com/lessons/why-do-blood-types-matter-natalie-s-hodge It’s often said that despite humanity’s many conflicts, we all bleed the same blood. It’s a nice thought, but not quite accurate. In fact, our blood comes in a few diffe
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What makes a poem … a poem? - Melissa Kovacs

802 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/what-makes-a-poem-a-poem-melissa-kovacs What exactly makes a poem … a poem? Poets themselves have struggled with this question, often using metaphors to approximate a definition. Is a poem a little machine? A fi
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Why do animals have such different lifespans? - Joao Pedro de Magalhaes

1,390 views / 0 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/why-do-animals-have-such-different-lifespans-joao-pedro-de-magalhaes For the microscopic lab worm C. elegans, life equates to just a few short weeks on Earth. The bowhead whale, on the other hand, can live over
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Illuminating photography: From camera obscura to camera phone - Eva Timothy

630 views / 0 likes - added 6 years ago

VIew full lesson: http://ed.ted.com/lessons/illuminating-photography-eva-timothy The origins of the cameras we use today were invented in the 19th century. Or were they? A millenia before, Arab scientist Alhazen was using the camera obscura to duplicate i
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What Causes Economic Bubbles? - Prateek Singh

1,052 views / 0 likes - added 9 years ago

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

290 views / 0 likes - added 1 year ago

Dig into what happens to your brain during adolescence that changes how you value, understand, and connect to friends.--If it seems like friendships formed in adolescence are particularly special, that's because they are. Childhood, adolescent, and adult
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How inventions change history (for better and for worse) - Kenneth C. Davis

600 views / 0 likes - added 6 years ago

View full lesson: http://ed.ted.com/lessons/how-inventions-change-history-for-better-and-for-worse-kenneth-c-davis Invented in 1793, the cotton gin changed history for good and bad. By allowing one field hand to do the work of 10, it powered a new industr
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Why plague doctors wore beaked masks

145 views / 0 likes - added 1 year ago

Explore the history of the European plague doctor, and find out where their iconic outfit of a beaked mask and robe came from.--The year is 1656. Your body is wracked by violent chills. Your head pounds and you're too weak to sit up. In your feverish stat
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Development Of English Drama - Mindy Ploeckelmann

864 views / 1 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/the-emergence-of-drama-as-a-literary-art-mindy-ploeckelmann When presented with the problem of hoards of illiterate commoners, English clergymen in the 11th century created plays to spread word about the Bible.
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The Chemistry Of Cookies - Stephanie Warren

784 views / 1 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/the-chemistry-of-cookies-stephanie-warren You stick cookie dough into an oven, and magically, you get a plate of warm, gooey cookies. Except it's not magic; it's science. Stephanie Warren explains via basic chem
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The Moon Illusion - Andrew Vanden Heuvel

817 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/the-moon-illusion-andrew-vanden-heuvel Have you noticed how the full moon looks bigger on the horizon than high overhead? Actually, the two images are exactly the same size -- so why do we perceive them differen
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Exploring Other Dimensions - Alex Rosenthal And George Zaidan

886 views / 1 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/exploring-other-dimensions-alex-rosenthal-and-george-zaidan Imagine a two-dimensional world -- you, your friends, everything is 2D. In his 1884 novella, Edwin Abbott invented this world and called it Flatland. A
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The Nurdles' Quest For Ocean Domination - Kim Preshoff

840 views / 0 likes - added 9 years ago

View full lesson: http://ed.ted.com/lessons/the-nurdles-quest-for-ocean-domination-kim-preshoff Nurdles are the tiny, factory-made pellets that form the raw material for every plastic product that we use, from toys to toothbrushes. And while they look pre
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The Incredible Collaboration Behind The International Space Station - Tien Nguyen

640 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/the-incredible-collaboration-behind-the-international-space-station-tien-nguyen The International Space Station is roughly the size of a six-bedroom house and weighs more than 320 cars -- it's so large that no s
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The Infinite Life Of Pi - Reynaldo Lopes

599 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/the-infinite-life-of-pi-reynaldo-lopes The ratio of a circle's circumference to its diameter is always the same: 3.14159... and on and on (literally!) forever. This irrational number, pi, has an infinite number
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What Is Dyslexia? - Kelli Sandman-Hurley

585 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/what-is-dyslexia-kelli-sandman-hurley Dyslexia affects up to 1 in 5 people, but the experience of dyslexia isn't always the same. This difficulty in processing language exists along a spectrum -- one that doesn'
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History Through The Eyes Of The Potato - Leo Bear-McGuinness

995 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/history-through-the-eyes-of-the-potato-leo-bear-mcguinness Baked or fried, boiled or roasted, as chips or fries; at some point in your life you’ve probably eaten a potato. But potatoes have played a much more si
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The Sonic Boom Problem - Katerina Kaouri

1,021 views / 0 likes - added 9 years ago

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

1,235 views / 1 likes - added 9 years ago

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

883 views / 1 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/attack-of-the-killer-algae-eric-noel-munoz As benign as it may look up close, the tiny seaweed Caulerpa taxifolia can wreak quite a bit of havoc on coastal ecosystems. This super algae is very adaptable; it also
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Making a car for blind drivers - Dennis Hong

738 views / 2 likes - added 6 years ago

View full lesson: http://ed.ted.com/lessons/making-a-car-for-blind-drivers-dennis-hong Using robotics, laser rangefinders, GPS and smart feedback tools, Dennis Hong is building a car for drivers who are blind. It's not a "self-driving" car, he's careful t
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How does an air conditioner actually work? - Anna Rothschild

31 views / 0 likes - added 2 weeks ago

Dig into the science of how heat pumps both heat and cool a home, and find out the benefits and drawbacks of this technology.--Typically, with any piece of technology, you pump one unit of energy in and you get about one out. Thats just the first law of t
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The Controversial Origins Of The Encyclopedia - Addison Anderson

598 views / 0 likes - added 8 years ago

View full lesson: https://ed.ted.com/lessons/the-controversial-origins-of-the-encyclopedia-addison-anderson The first encyclopedia contained 70,000 entries and over 20,000,000 words. It was broken into 35 volumes written over the course of 3 decades. It w
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What's Hidden Among The Tallest Trees On Earth? - Wendell Oshiro

839 views / 1 likes - added 9 years ago

View full lesson: http://ed.ted.com/lessons/what-s-hidden-among-the-tallest-trees-on-earth-wendell-oshiro When Stephen Sillett was a boy, he took to the forests of Pennsylvania with his brother and grandmother. Looking up into the dense branches and leave
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Who Am I? A Philosophical Inquiry - Amy Adkins

1,148 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/who-am-i-a-philosophical-inquiry-amy-adkins Throughout the history of mankind, the subject of identity has sent poets to the blank page, philosophers to the agora and seekers to the oracles. These murky waters o
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How does an atom-smashing particle accelerator work? - Don Lincoln

540 views / 0 likes - added 6 years ago

View full lesson: http://ed.ted.com/lessons/how-does-an-atom-smashing-particle-accelerator-work-don-lincoln An atom smasher, or particle accelerator, collides atomic nuclei together at extremely cold temperatures, very low air pressure, and hyperbolically
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What Are The Universal Human Rights? - Benedetta Berti

1,283 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/what-are-the-universal-human-rights-benedetta-berti The basic idea of human rights is that each one of us, no matter who we are or where we are born, is entitled to the same basic rights and freedoms. That may s
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Can Wildlife Adapt To Climate Change? - Erin Eastwood

1,925 views / 3 likes - added 8 years ago

VIew full lesson: http://ed.ted.com/lessons/can-wildlife-adapt-to-climate-change-erin-eastwood With rising temperatures and seas, massive droughts, and changing landscapes, successfully adapting to climate change is increasingly important. For humans, thi
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Buffalo Buffalo Buffalo: One-word Sentences And How They Work - Emma Bryce

760 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/buffalo-buffalo-buffalo-one-word-sentences-and-how-they-work-emma-bryce ‘Buffalo buffalo Buffalo buffalo buffalo buffalo Buffalo buffalo’ is a grammatically correct sentence. How? Emma Bryce explains how this an
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Mysteries Of Vernacular: Jade - Jessica Oreck And Rachael Teel

534 views / 0 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/mysteries-of-veracular-jade-jessica-oreck-and-rachael-teel Now known for its beauty and green hue, the stone jade was previously thought to espouse magical properties, such as kidney treatment. Jessica Oreck and
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What happened to trial by jury? - Suja A. Thomas

606 views / 1 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/what-happened-to-trial-by-jury-suja-a-thomas In the United States today, juries decide less than 4% of criminal cases and less than 1% of civil cases filed in court. At the same time, jury systems in other count
06:04 $How does fracking work? - Mia Nacamulli$
How does fracking work? - Mia Nacamulli

674 views / 0 likes - added 6 years ago

View full lesson: http://ed.ted.com/lessons/how-does-fracking-work-mia-nacamulli Deep underground lie stores of once-inaccessible natural gas. There’s a technology, called hydraulic fracturing, or “fracking,” that can extract this natural gas, potentially
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Corruption, Wealth And Beauty: The History Of The Venetian Gondola - Laura Morelli

802 views / 1 likes - added 9 years ago

View full lesson: http://ed.ted.com/lessons/corruption-wealth-and-beauty-the-history-of-the-venetian-gondola-laura-morelli It’s hard to imagine Venice without the curious, banana-shaped gondolas that glide down the canals. How did these boats come to be t
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The Psychology Of Narcissism - W. Keith Campbell

556 views / 1 likes - added 8 years ago

View full lesson: http://ed.ted.com/lessons/the-psychology-of-narcissism-w-keith-campbell Narcissism isn’t just a personality type that shows up in advice columns; it’s actually a set of traits classified and studied by psychologists. But what causes it?
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Can you solve the airplane riddle? - Judd A. Schorr

1,163 views / 2 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/can-you-solve-the-airplane-riddle-judd-a-schorr Professor Fukanō, the famous scientist, has embarked on a new challenge – piloting around the world in a plane of his own design. There’s just one problem: there's
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How Playing An Instrument Benefits Your Brain - Anita Collins

893 views / 0 likes - added 9 years ago

View full lesson: http://ed.ted.com/lessons/how-playing-an-instrument-benefits-your-brain-anita-collins When you listen to music, multiple areas of your brain become engaged and active. But when you actually play an instrument, that activity becomes more
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Would winning the lottery make you happier? - Raj Raghunathan

955 views / 2 likes - added 7 years ago

View full lesson: http://ed.ted.com/lessons/would-winning-the-lottery-make-you-happier-raj-raghunathan Imagine winning a multi-million dollar lottery tomorrow. If you’re like many of us, you’d be ecstatic, unable to believe your good luck. But
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Gerrymandering: How drawing jagged lines can impact an election - Christina Greer

687 views / 0 likes - added 6 years ago

View full lesson: http://ed.ted.com/lessons/gerrymandering-how-drawing-jagged-lines-can-impact-an-election-christina-greer District lines, and the groups of voters within them, may seem arbitrary, but a lot of thought (and political bickering) is put into

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