TED Talks
David R. Dow: Lessons from death row inmates
What happens before a murder? In looking for ways to reduce death penalty cases, David R. Dow realized that a surprising number of death row inmates had similar biographies. In this talk he proposes a bold plan, one that prevents murders...
TED Talks
TED: How Christmas lights helped guerrillas put down their guns | Jose Miguel Sokoloff
In my lifetime, I have never lived one day of peace in my country, says Jose Miguel Sokoloff. This ad executive from Colombia saw a chance to help guerrilla fighters choose to come home -- with smart marketing. He shares how some...
TED Talks
TED: Confessions of a depressed comic | Kevin Breel
Kevin Breel didn't look like a depressed kid: team captain, at every party, funny and confident. But he tells the story of the night he realized that -- to save his own life -- he needed to say four simple words.
SciShow
We May Have Just Found the Universe's Missing Baryonic Matter
Astronomers have finally found evidence to help solve the missing baryon problem, and they're pointing telescopes toward the Intergalactic Medium to figure it out.
SciShow
3 Unique Rovers for Extreme Worlds
Specialized rovers provide all kinds of creative solutions to the problem of navigating new terrain, and future missions might just carry some weird bots like these.
Crash Course
Divine Command Theory: Crash Course Philosophy
As we venture into the world of ethics, there are a lot of different answers to the grounding problem for us to explore. One of the oldest and most popular is the divine command theory. But with age comes a long history of questions,...
TED Talks
Nick Bostrom: A philosophical quest for our biggest problems
Oxford philosopher and transhumanist Nick Bostrom examines the future of humankind and asks whether we might alter the fundamental nature of humanity to solve our most intrinsic problems.
TED Talks
Kimberley Motley: How I defend the rule of law
Every human deserves protection under their country’s laws — even when that law is forgotten or ignored. Sharing three cases from her international legal practice, Kimberley Motley, an American litigator practicing in Afghanistan and...
TED Talks
Esther Duflo: Social experiments to fight poverty
Alleviating poverty is more guesswork than science, and lack of data on aid's impact raises questions about how to provide it. But Clark Medal-winner Esther Duflo says it's possible to know which development efforts help and which hurt...
TED Talks
TED: The US needs paid family leave -- for the sake of its future | Jessica Shortall
We need women to work, and we need working women to have babies. So why is America one of the only countries in the world that offers no national paid leave to new working mothers? In this incisive talk, Jessica Shortall makes the...
Amoeba Sisters
Nature of Science
Explore the nature of science with The Amoeba Sisters. This video discusses why there is not just one universal scientific method as well as the importance of credible sources when researching. Vocab in experimental design including...
Crash Course Kids
What's an Engineer?
You've heard of Engineers, I'm sure. But, what are Engineers? Well, it turns out that they're all kinds of people doing all kinds of neat work! Want to be one? Well, join Sabrina in this episode of Crash Course Kids where she talks about...
TED-Ed
TED-Ed: Can you solve the rebel supplies riddle? - Alex Gendler
You're overseeing the delivery of supplies to a rebel base in the heart of enemy territory. To get past customs, all packages must follow this rule: if a box is marked with an even number on the bottom, it must be sealed with a red top....
TED Talks
Marvin Minsky: Health and the human mind
Listen closely -- Marvin Minsky's arch, eclectic, charmingly offhand talk on health, overpopulation and the human mind is packed with subtlety: wit, wisdom and just an ounce of wily, is-he-joking? advice.
TED Talks
Catherine Mohr: Surgery's past, present and robotic future
Surgeon and inventor Catherine Mohr tours the history of surgery (and its pre-painkiller, pre-antiseptic past), then demos some of the newest tools for surgery through tiny incisions, performed using nimble robot hands. Fascinating --...
TED Talks
Antonio Damasio: The quest to understand consciousness
Every morning we wake up and regain consciousness -- that is a marvelous fact -- but what exactly is it that we regain? Neuroscientist Antonio Damasio uses this simple question to give us a glimpse into how our brains create our sense of...
TED Talks
Rob Harmon: How to keep rivers and streams flowing
With streams and rivers drying up because of over-usage, Rob Harmon talks about a clever market mechanism to bring back the water. Farmers and beer companies find their fates intertwined in the century-old tale of Prickly Pear Creek.
TED Talks
Paul Gilding: The Earth is full
Have we used up all our resources? Have we filled up all the livable space on Earth? Paul Gilding suggests we have, and the possibility of devastating consequences, in a talk that's equal parts terrifying and, oddly, hopeful.
TED Talks
Stewart Brand: The Long Now
Stewart Brand works on the Clock of the Long Now, a timepiece that counts down the next 10,000 years. It's a beautiful project that asks us to think about the far, far future. Here, he discusses a tricky side problem with the Clock:...
TED Talks
TED: Can we build AI without losing control over it? | Sam Harris
Scared of superintelligent AI? You should be, says neuroscientist and philosopher Sam Harris -- and not just in some theoretical way. We're going to build superhuman machines, says Harris, but we haven't yet grappled with the problems...
SciShow
Why Is Neptune So Blue And 3 Other Mysteries an Orbiter Could Solve
Neptune's radius is almost four times larger than Earth's, its surface has super intense storms, and we barely know anything else about it. It is time to send another orbiter out there.
SciShow
Why Can’t You Use E15 Gas in Summer?
A new strain of bird flu has been detected in North American birds for the first time in seven years. And U.S. President Biden is temporarily lifting the country's summertime ban on E15 gasoline.
3Blue1Brown
Why does this product equal pi/2? A new proof of the Wallis formula for pi.
A new and more circularly proof of a famous infinite product for pi.
TED Talks
TED: How AI is making it easier to diagnose disease | Pratik Shah
Today's AI algorithms require tens of thousands of expensive medical images to detect a patient's disease. What if we could drastically reduce the amount of data needed to train an AI, making diagnoses low-cost and more effective? TED...