TED-Ed

View full lesson: http://ed.ted.com/lessons/a-40-year-plan-for-energy-amory-lovinsIn this intimate talk filmed at TED's offices, energy innovator Amory Lovins shows how to get the US off oil and coal by 2050, $5 trillion cheaper, with no Act of Congress, led by business for profit. The key is integrating all four energy-using sectors—and four kinds of innovation. Talk by Amory Lovins. Learn more a...

Discover what caused the hole in the ozone layer, and how the Montreal Protocol helped restore it by banning harmful chemicals.--In the 1980s, the world faced a huge problem: there was a rapidly expanding hole in the ozone layer. If it continued to grow, rates of skin cancer could skyrocket, photosynthesis would be impaired, agricultural production would plummet, and entire ecosystems would collap...

Explore the Rashomon effect, where individuals give significantly different but equally believable accounts of the same event. --A samurai is found dead in a quiet bamboo grove. One by one, the crime’s only known witnesses recount their version of the events. But as they each tell their tale, it becomes clear that every testimony is plausible yet different. And each witness implicates themselves....

Are we born to be optimistic, rather than realistic? Tali Sharot shares new research that suggests our brains are wired to look on the bright side -- and how that can be both dangerous and beneficial. Talk by Tali Sharot. Learn more about your ad choices. Visit megaphone.fm/adchoices

View full lesson: http://ed.ted.com/lessons/making-a-ted-ed-lesson-animating-zombies-with-puppetsWhat style of animation perfectly mimics the movement of zombies? Puppet animation allows for just the right amount of zombie-like stiff limbs and jerky stumbles. TED-Ed animators show how to bring a zombie to life through 2D puppet animation (and how to try this at home).Lesson and animation by TED-Ed...

Vote here for Education Website: http://on.ted.com/EdWebbyVote here for Best Practices Website: http://on.ted.com/BPWebby Learn more about your ad choices. Visit megaphone.fm/adchoices

Trace the history of popcorn, from its origins in the Americas to its explosion of popularity in the 20th century.--Soft percussion and a toasty scent mark the violent transformation of tough seeds into cloud-like puffs. This is the almost magical process of popcorn-making. Dozens of kinds of popcorn are now grown in the US, with different strains assuming distinctive shapes when their kernels exp...

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 epidemic in recorded history. Guinea then completely overhauled their response system, and were able to successfully combat another outbreak in 2021....

Oops! Nobody wants to see the 404: Page Not Found. But as Renny Gleeson shows us, while he runs through a slideshow of creative and funny 404 pages, every error is really a chance to build a better relationship. Talk by Renny Gleeson. Learn more about your ad choices. Visit megaphone.fm/adchoices

View full lesson: http://ed.ted.com/lessons/making-sense-of-how-life-fits-together-bobbi-seleskiFrom something as miniscule as a cell to the biosphere we all call home, living things fit together in numerous interesting ways. Bobbi Seleski catalogs biology from our body and beyond, tracking how unicellular organisms, tissues, organs, organ systems, organisms, populations, communities, ecosystems,...

Dig into the breeding program that saved Takhi horses from extinction, and explore the role of zoos in animal conservation.--For thousands of years, native Takhi horses roamed the steppes of Central Asia. But by the late 1960s, their extinction seemed inevitable. To prevent this, scientists and zoos started a breeding program and soon began releasing new generations of Asia's ancient wild horse ba...

There are people who can quickly memorize lists of thousands of numbers, the order of all the cards in a deck (or ten!), and much more. Science writer Joshua Foer describes the technique -- called the memory palace -- and shows off its most remarkable feature: anyone can learn how to use it, including him. Talk by Joshua Foer. Learn more about your ad choices. Visit megaphone.fm/adchoices

Practice more problem-solving at https://brilliant.org/TedEd--Hundreds of years ago, your ancestor stole a magical tarot deck from Fate herself— and it came with a terrible cost. Once every 23 years, one member of your family must face Fate in a duel with rules only known to your opponent. And every time, generation after generation, the outcome is the same: Fate claims their soul. Today, it’s you...

Discover the unique adaptations of marine forests, the ecosystems that provide food and shelter for sharks and diverse coastal species.--Forests don’t usually come to mind as a habitat for sharks. But marine forests provide a home for 35% of the world’s sharks. Mangrove forests in particular function as an essential bridge between land and sea and have evolved various adaptations that protect them...

High school science teacher Tyler DeWitt was ecstatic about a lesson plan on bacteria (how cool!) -- and devastated when his students hated it. The problem was the textbook: it was impossible to understand. He delivers a rousing call for science teachers to ditch the jargon and extreme precision, and instead make science sing through stories and demonstrations. (Filmed at TEDxBeaconStreet.)Talk by...

Explore the British policy called Operation Legacy, where the government hid incriminating documents from its former colonies.--In 2009, five Kenyan people took a petition to the British Prime Minister. They claimed they endured human rights abuses in the 1950s, while Kenya was under British colonial rule, and demanded reparations. They had no documentary evidence that Britain sanctioned systems o...

Get to know the works of William Faulkner, whose inventive literature made him one of America’s most remarkable writers.--William Faulkner is considered one of America’s most remarkable and perplexing writers. He confused his audience intentionally, using complex sentences, unreliable narrators, and outlandish imagery. His body of work is shocking, inventive, hilarious, and challenging. So how can...

View full lesson: http://ed.ted.com/lessons/music-and-emotion-through-time-michael-tilson-thomasIn this epic overview, Michael Tilson Thomas traces the development of classical music through the development of written notation, the record, and the re-mix. Talk by Michael Tilson Thomas. Learn more about your ad choices. Visit megaphone.fm/adchoices

View full lesson: http://ed.ted.com/lessons/string-theory-and-the-hidden-structures-of-the-universe-clifford-johnsonWhat is everything made of? Thus far, we can break everything in the universe down to a few very small elementary particles. But they fit into strange patterns that are not understood. Some scientists believe that this is because we can go deeper - perhaps to simple vibrating strings...

Explore the prevailing scientific theory of why crooked teeth and impacted wisdom teeth are recent developments in human evolution.--According to the fossil record, ancient humans usually had straight teeth, complete with wisdom teeth. In fact, the dental dilemmas that fuel the demand for braces and wisdom teeth extractions today appear to be recent developments. So, what happened? While it’s near...

Get to know avant-garde music composer John Cage, whose work challenged the boundaries between music and noise.--In 1960, composer John Cage went on television to share his latest work. But rather than using traditional instruments, Cage appeared surrounded by household clutter, including a bathtub, ice cubes, a toy fish, a rubber duck, several radios, and performed “Water Walk.” Most people watch...

As you surf the Web, information is being collected about you. Web tracking is not 100% evil -- personal data can make your browsing more efficient; cookies can help your favorite websites stay in business. But, says Gary Kovacs, it's your right to know what data is being collected about you and how it affects your online life. He unveils a Firefox add-on to do just that. Talk by Gary Kovacs. Lear...

View full lesson: http://ed.ted.com/lessons/animation-basics-the-optical-illusion-of-motion-ted-edHow do animators make still images come to life? Are the images really moving, or are they merely an optical illusion? TED-Ed takes you behind the scenes to reveal the secret of motion in movies. Lesson and animation by TED-Ed. Learn more about your ad choices. Visit megaphone.fm/adchoices

Trace the rise and fall of the Mughal Empire, which became one of the wealthiest and most powerful states in the early modern world.--Though he was descended from some of the world’s most successful conquerors, Babur struggled to gain a foothold among the many other ambitious princes in Central Asia. So he turned his attention to India, where his descendants stayed and built the Mughal Empire. Ste...

View full lesson: http://ed.ted.com/lessons/dare-to-educate-afghan-girls-shabana-basij-rasikhImagine a country where girls must sneak out to go to school, with deadly consequences if they get caught learning. This was Afghanistan under the Taliban, and traces of that danger remain today. 22-year-old Shabana Basij-Rasikh runs a school for girls in Afghanistan. She celebrates the power of a family's...