TED Talks
Del Harvey: Protecting Twitter users (sometimes from themselves)
Del Harvey heads up Twitter’s Trust and Safety Team, and she thinks all day about how to prevent worst-case scenarios -- abuse, trolling, stalking -- while giving voice to people around the globe. With deadpan humor, she offers a window...
TED-Ed
TED-ED: The case of the missing fractals - Alex Rosenthal and George Zaidan
A bump on the head, a mysterious femme fatale and a strange encounter on a windswept peak all add up to a heck of a night for Manny Brot, Private Eye. Watch as he tries his hand at saving the dame and getting the cash! Shudder at the...
Crash Course
Crime: Crash Course Sociology
We’ve talked about deviance more broadly, but today we’re focusing on crime, specifically in the US. We’ll start with legal definitions of crime and use FBI data to get an idea of the amount and kinds of crime committed in the US. We’ll...
TED Talks
Shimon Schocken: What a bike ride can teach you
Computer science professor Shimon Schocken is also an avid mountain biker. To share the life lessons he learned while riding, he began an outdoor program with Israel's juvenile inmates and was touched by both their intense difficulties...
TED Talks
Will Marshall: Tiny satellites show us the Earth as it changes in near-real-time
Satellite imaging has revolutionized our knowledge of the Earth, with detailed images of nearly every street corner readily available online. But Planet Labs' Will Marshall says we can do better and go faster -- by getting smaller. He...
SciShow
Did Dinosaurs Really Have Feathers?
At least one entire class of dinosaurs seems to have had feathers, including velociraptors, and probably T. rex. Find out how we know, and how we even know what color some of them were!
TED Talks
Kristen Ashburn: The face of AIDS in Africa
In this moving talk, documentary photographer Kristen Ashburn shares unforgettable images of the human impact of AIDS in Africa.
TED Talks
TED: For more tolerance, we need more ... tourism? | Aziz Abu Sarah
Aziz Abu Sarah is a Palestinian activist with an unusual approach to peace-keeping: Be a tourist. The TED Fellow shows how simple interactions with people in different cultures can erode decades of hate. He starts with Palestinians...
TED Talks
Raul Midon: "Peace on Earth"
Guitarist and singer Raul Midon plays "Everybody" and "Peace on Earth" during his 2007 set at TED.
TED Talks
Nadia Al-Sakkaf: See Yemen through my eyes
As political turmoil in Yemen continues, the editor of the Yemen Times, Nadia Al-Sakkaf, talks at TEDGlobal with host Pat Mitchell. Al-Sakkaf's independent, English-language paper is vital for sharing news -- and for sharing a new vision...
SciShow
How to Turn Anxiety Into Excitement
Sometimes excitement can feel more like anxiety, and it turns out that they aren't that unrelated. Understanding the automatic reaction in our brains and changing our interpretation of the source might help us actually turn that anxiety...
3Blue1Brown
But what is a convolution?
A small correction for the integer multiplication algorithm mentioned at the end. A “straightforward” application of FFT results in a runtime of O(N * log(n) log(log(n)) ). That log(log(n)) term is tiny, but it is only recently in 2019,...
TED Talks
Smruti Jukur Johari: What if the poor were part of city planning?
Almost a billion people worldwide live in informal communities and slums, often without basic infrastructure like clean water, toilets or adequate roads. Urban planner Smruti Jukur Johari breaks down myths about these communities and...
TED-Ed
TED-ED: The poet who painted with his words - Genevieve Emy
Among the great poets of literary history, certain names like Homer, Shakespeare and Whitman are instantly recognizable. However, there's an early 20th century great poet whose name you may not know: Guillaume Apollinaire. Genevieve Emy...
TED-Ed
TED-Ed: Can you solve the prisoner boxes riddle? - Yossi Elran
Your favorite band is great at playing musicbut not so great at being organized. They keep misplacing their instruments on tour, and it's driving their manager mad. Can you solve the brain-numbing riddle their manager assigns them and...
TED Talks
Stuart Brown: Play is more than just fun
A pioneer in research on play, Dr. Stuart Brown says humor, games, roughhousing, flirtation and fantasy are more than just fun. Plenty of play in childhood makes for happy, smart adults -- and keeping it up can make us smarter at any age.
Crash Course
Evaluating Photos & Videos: Crash Course Navigating Digital Information #7
With the amount of fake and doctored photos and videos out there, how can we know what to trust? Most of us are used to thinking that "seeing is believing" but as technology makes it easier and easier to spread unreliable content online...
SciShow
The Science of Sunbeams
Sunbeams shooting down through the clouds make for some great photographs, but what's the science behind these beautiful rays of light?
SciShow
How Can the Universe Be Flat?
Can geometry predict the future? Cosmologists think the overall curvature of universe can tell us secrets about how it will eventually end.
TED Talks
David McCandless: The beauty of data visualization
David McCandless turns complex data sets (like worldwide military spending, media buzz, Facebook status updates) into beautiful, simple diagrams that tease out unseen patterns and connections. Good design, he suggests, is the best way to...
TED Talks
TED: This is what enduring love looks like | Alec Soth and Stacey Baker
Stacey Baker has always been obsessed with how couples meet. When she asked photographer Alec Soth to help her explore this topic, they found themselves at the world's largest speed-dating event, held in Las Vegas on Valentine's Day, and...
SciShow
Can Old Dogs Learn New Tricks?
I’t teach an old dog new tricks — but that saying might not be as trustworthy as you’d think.
Bozeman Science
London Dispersion Forces
In this video Paul Andersen describes the positive force intermolecular forces found between all atoms and molecules. As electrons are distributed unevenly it creates instantaneous dipoles which hold molecules together. This force even...