SciShow
What Does Your Uvula Do?
Ever wonder what that dangling thing in the back of your throat is good for? Hank Green explains in this episode of SciShow Quick Questions.
SciShow
Why We Send Animals to Space
What happens when you send a duck, a rooster and a sheep with monkeys and dogs into space? Scientists had to find out -- and for decades, they've been studying life in space with the help of some crawly, wiggly, fluttery, furry friends.
TED Talks
Tom Wujec: Learn to use the 13th-century astrolabe
Rather than demo another new technology, Tom Wujec reaches back to one of our earliest but most ingenious devices -- the astrolabe. With thousands of uses, from telling time to mapping the night sky, this old tech reminds us that the...
TED Talks
Eleanor Longden: The voices in my head
To all appearances, Eleanor Longden was just like every other student, heading to college full of promise and without a care in the world. That was until the voices in her head started talking. Initially innocuous, these internal...
PBS
What Happens at the Event Horizon?
What really happens when you approach the event horizon of a black hole?
TED Talks
Loretta Napoleoni: The intricate economics of terrorism
Loretta Napoleoni details her rare opportunity to talk to the secretive Italian Red Brigades -- an experience that sparked a lifelong interest in terrorism. She gives a behind-the-scenes look at its complex economics, revealing a...
TED Talks
Shawn Achor: The happy secret to better work
We believe we should work hard in order to be happy, but could we be thinking about things backwards? In this fast-moving and very funny talk, psychologist Shawn Achor argues that, actually, happiness inspires us to be more productive.
TED Talks
Sasa Vucinic: Why we should invest in a free press
A free press -- papers, magazines, radio, TV, blogs -- is the backbone of any true democracy (and a vital watchdog on business). Sasa Vucinic, a journalist from Belgrade, talks about his new fund, which supports media by selling "free...
SciShow
Why Do Itches Make You Chase Them?
Have you ever said, "No, a little to the left," during a back scratch because the itch itself seemed to move? Well, it has to do with how your nerves and brain respond to the sensation.
SciShow
SciShow Quiz Show: Pit Stains & Climate Change
Megan Toenyes, a former SciShow videomaker returns for a showdown with her former employer!
TED-Ed
TED-Ed: The Train Heist | Think Like A Coder, Ep 4 | Alex Rosenthal
This is episode 4 of our animated series "Think Like A Coder." This 10-episode narrative follows a girl, Ethic, and her robot companion, Hedge, as they attempt to save the world. The two embark on a quest to collect three artifacts and...
TED Talks
TED: Tagging tuna in the deep ocean | Barbara Block
Tuna are ocean athletes -- fast, far-ranging predators whose habits we're just beginning to understand. Marine biologist Barbara Block fits tuna with tracking tags (complete with transponders) that record unprecedented amounts of data...
TED Talks
TED: Why did I ski to the North Pole? | Ben Saunders
Arctic explorer Ben Saunders recounts his harrowing solo ski trek to the North Pole, complete with engaging anecdotes, gorgeous photos and never-before-seen video.
SciShow
North Americas 3 Billion Lost Birds SciShow News
This week, an alarming report on North American bird populations and a sweet study on one of our more aloof furry companions.
Be Smart
The Surprising Places We Waste Energy
We use a LOT of energy, but we waste a lot too. Where that waste happens might surprise, you though. We don't just waste energy when we leave the lights on or the thermostat cranked down too low. It happens at the dinner table and the...
Be Smart
Are Dinosaurs Extinct?
Most people are taught that dinosaurs went extinct 66 million years ago when a giant meteor crashed into the Yucatan peninsula. I'm here to tell you that's wrong. Dinosaurs are alive and well today, and you don't have to go to Jurassic...
SciShow
The Most Dangerous Part of Space Travel Coming Home
SciShow Space takes you through perhaps the scariest part of every space mission -- re-entry. How do astronauts survive the turbulent return to Earth’s atmosphere? Math, y’all!
TED Talks
Takaharu Tezuka: The best kindergarten you’ve ever seen
At this school in Tokyo, five-year-olds cause traffic jams and windows are for Santa to climb into. Meet: the world's cutest kindergarten, designed by architect Takaharu Tezuka. In this charming talk, he walks us through a design process...
TED Talks
TED: uber's plan to get more people into fewer cars | Travis Kalanick
uber didn't start out with grand ambitions to cut congestion and pollution. But as the company took off, co-founder Travis Kalanick wondered if there was a way to get people using uber along the same routes to share rides, reducing costs...
TED Talks
TED: Photos of Africa, taken from a flying lawn chair | George Steinmetz
George Steinmetz's spectacular photos show Africa from the air, taken from the world's slowest, lightest aircraft. Join Steinmetz to discover the surprising historical, ecological and sociopolitical patterns that emerge when you go low...
TED Talks
TED: How we explore unanswered questions in physics | James Beacham
James Beacham looks for answers to the most important open questions of physics using the biggest science experiment ever mounted, CeRN's Large Hadron Collider. In this fun and accessible talk about how science happens, Beacham takes us...
SciShow
A New Idea About Tabby's Star!
Astronomers might have finally discovered part of why Tabby's Star acts so strangely and we have some new ideas about what triggers a type Ia supernova.
MinutePhysics
London Bridge Was Sold to the US
London Bridge has already been rebuilt twice! But what happened to the bridges that came down?
TED Talks
Chera Kowalski: The critical role librarians play in the opioid crisis
Public libraries have always been about more than just books -- and their mission of community support has taken on new urgency during the current opioid epidemic. After witnessing overdoses at her library in Philadelphia, Chera Kowalski...