3Blue1Brown
All possible pythagorean triples, visualized
There are a few special right triangles many of us learn about in school, like the 3-4-5 triangle or the 5-12-13 triangle. Is there a way to understand all triplets of numbers (a, b, c) that satisfy a^2 + b^2 = c^2? There is! And it uses...
TED Talks
TED: My country will be underwater soon -- unless we work together | Anote Tong
For the people of Kiribati, climate change isn't something to be debated, denied or legislated against -- it's an everyday reality. The low-lying Pacific island nation may soon be underwater, thanks to rising sea levels. In a personal...
SciShow
The Ridiculous Reasons It's Hard to Measure Sea Level
From problems with the moon, to the lumpiness of earth, sea levels aren't quite as exact as we have them figured out to be.
SciShow
The Majestic Grolar Bear
Although polar bears and grizzly bears aren't all that similar and are definitely separate species, they can interbreed and create fertile offspring in the wild. Hank brings us the story of these misfit bears, which he likes to call...
TED Talks
TED: How deepfakes undermine truth and threaten democracy | Danielle Citron
* Viewer discretion advised. This video includes discussion of mature topics and may be inappropriate for some audiences. The use of deepfake technology to manipulate video and audio for malicious purposes -- whether it's to stoke...
TED Talks
TED: Different ways of knowing | Daniel Tammet
Daniel Tammet has linguistic, numerical and visual synesthesia -- meaning that his perception of words, numbers and colors are woven together into a new way of perceiving and understanding the world. The author of "Born on a Blue Day,"...
TED-Ed
TED-Ed: Inside a cartoonist's world - Liza Donnelly
From cave drawings to the Sunday paper, artists have been visualizing ideas -- cartoons -- for centuries. New Yorker cartoonist Liza Donnelly walks us through the many stages every cartoon goes through, starting with an idea and turning...
TED Talks
TED: Can we stop climate change by removing CO2 from the air? | Tim Kruger
Could we cure climate change? Geoengineering researcher Tim Kruger wants to try. He shares one promising possibility: using natural gas to generate electricity in a way that takes carbon dioxide out of the air. Learn more -- both the...
TED Talks
TED: Life lessons from big cats | Beverly + Dereck Joubert
Beverly + Dereck Joubert live in the bush, filming and photographing lions and leopards in their natural habitat. With stunning footage (some never before seen), they discuss their personal relationships with these majestic animals --...
TED Talks
TED: How to get (a new) hip | Allison Hunt
When Allison Hunt found out that she needed a new hip -- and that Canada’s national health care system would require her to spend nearly 2 years on a waiting list (and in pain) -- she took matters into her own hands.
TED Talks
TED: Dear Facebook, this is how you're breaking democracy | Yaël Eisenstat
Lies are more engaging online than truth, says former CIA analyst, diplomat and Facebook employee Yaël Eisenstat. "As long as [social media] algorithms' goals are to keep us engaged, they will feed us the poison that plays to our worst...
TED Talks
TED: How young Africans found a voice on Twitter | Siyanda Mohutsiwa
What can a young woman with an idea, an Internet connection and a bit of creativity achieve? That's all Siyanda Mohutsiwa needed to unite young African voices in a new way. Hear how Mohutsiwa and other young people across the continent...
SciShow
Slingshot Spiders Put Fighter Pilots to Shame
There are all kinds of ways that a spider can catch its prey, but few species are as extreme as the slingshot spider!
TED-Ed
A day in the life of the Oracle of Delphi | Mark Robinson
As the sun rises over Delphi in 500 BCE, Aristonike hurries to the temple of Apollo where a single oracle known as the Pythia communicates Apollo's will. Reserved only for women, this is the most important job in the city— and one that...
TED Talks
TED: An illustrated kingdom of real, fantastical plants | Nirupa Rao
Botanical artist Nirupa Rao captures the spirit and beauty of nature in watercolor. With a portfolio of enchanting, scientifically accurate illustrations, she aims to reignite our emotional connection to the environment -- and open our...
TED-Ed
TED-ED: The origin of countless conspiracy theories - PatrickJMT
Why can we find geometric shapes in the night sky? How can we know that at least two people in London have exactly the same number of hairs on their head? And why can patterns be found in just about any text - even Vanilla Ice lyrics?...
3Blue1Brown
Dot products and duality: Essence of Linear Algebra - Part 9 of 15
What is the dot product? What does it represent? Why does it have the formula that it does? All this is explained visually.
TED Talks
Alejandro Aravena: My architectural philosophy? Bring the community into the process
When asked to build housing for 100 families in Chile ten years ago, Alejandro Aravena looked to an unusual inspiration: the wisdom of favelas and slums. Rather than building a large building with small units, he built flexible...
TED-Ed
TED-Ed: What's the fastest way to alphabetize your bookshelf? - Chand John
You work at the college library. You're in the middle of a quiet afternoon when suddenly, a shipment of 1,280 books arrives. The books are in a straight line, but they're all out of order, and the automatic sorting system is broken. How...
TED Talks
Benjamin Zander: The transformative power of classical music
Benjamin Zander has two infectious passions: classical music, and helping us all realize our untapped love for it -- and by extension, our untapped love for all new possibilities, new experiences, new connections.
SciShow
Why Humans Feel Disgust, and Why Other Animals Might Too
You might think something is so "icky" that you try avoid it, and scientists think there's a reason humans, and even some other animals, do this.
TED Talks
Woody Norris: Hypersonic sound and other inventions
Woody Norris shows off two of his inventions that use sound in new ways, including the Long Range Acoustic Device, or LRAD. He talks about his untraditional approach to inventing and education, because, as he puts it: "Almost nothing has...
TED Talks
Jeff Hancock: The future of lying
Who hasn’t sent a text message saying “I’m on my way” when it wasn’t true or fudged the truth a touch in their online dating profile? But Jeff Hancock doesn’t believe that the anonymity of the internet encourages dishonesty. In fact, he...