TED-Ed
TED-Ed: Why do we have crooked teeth when our ancestors didn't? | G. Richard Scott
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,...
TED Talks
TED: How wireless energy from space could power everything | Ali Hajimiri
Modern life runs on wireless technology. What if the energy powering our devices could also be transmitted without wires? Electrical engineer Ali Hajimiri explains the principles behind wireless energy transfer and shares his far-out...
TED Talks
TED: The outlaws of the ocean -- and how we're reeling them in | Tony Long
Pirate fishing, oil spills and other undetected crimes are destroying ocean ecosystems -- but we can't stop what we can't see. Harnessing the power of satellite data and AI to catch maritime offenders in the act, ocean conservation...
TED-Ed
TED-Ed: The battle that formed the universe | Fabio Pacucci
It's time for the biggest battle in the Universe: the Big Bang. In one corner is gravity— the force that brings all matter together. In the other is pressure— the force that can push matter away. Over the next several hundred thousand...
TED Talks
TED: How to design a school for the future | Punya Mishra
In all the conversations about improving education for children, the voices of students, teachers and community members are often left out. Educational designer Punya Mishra offers a method to shift that paradigm, taking us through new...
SciShow Kids
Let's Look at Constellations! | How We Study Space | SciShow Kids
Today, Jessi and Sam the Bat take a look at constellations. Humans have been looking up at the sky for a long time and seeing all kinds of pictures hidden in the stars!
SciShow Kids
What Was the Big Bang and Other Space Questions Answered! | SciShow Kids
Jessi and Sam the Bat team up to answer your questions about space, like: How was the universe created?
SciShow Kids
Telescopes in Space! | How We Study Space | SciShow Kids
Anthony and Squeaks find out how you can put telescopes in different places to help you see further away and get better pictures of things in space!
SciShow Kids
Looking at the Earth! | How We Study Space | SciShow Kids
If you were looking down at the Earth from space, what would you be able to see? Do you think you would be able to see your house? What if you were super far away?
SciShow Kids
Why Do Things Float in Space? | How We Study Space | SciShow Kids
Living in space is pretty different from living on Earth, and not just because people can float around! Today, Jessi and Sam the Bat learn about the weird ways things like fire and water behave when they are in space.
SciShow Kids
How Does Food Get to Our Stomachs and More Answers to Your Questions! | SciShow Kids
This week, Mister Brown joins Squeaks to answer a bunch more of your questions about the Earth and about our bodies!
Crash Course
Poor Unfortunate Theater: Crash Course Theater #48
Poor Theater and Theater of the Oppressed were two sort of concurrent movements that shared some of the same aims. Jerzy Grotowski's Poor Theater eschewed the use of lighting, props, costumes, makeup, and many of the other trappings of...
TED Talks
TED: 3 elements of true fun -- and how to have more of it | Catherine Price
What comes to mind when you think about the most fun moments of your life? Science journalist Catherine Price asked thousands of people across the world this question, and their answers led her to a new definition of "true" fun: a...
TED Talks
TED: Gourmet food for the final frontier | Phnam Bagley
What does an in-flight meal look like when you're traveling to Mars? Designer Phnam Bagley envisions a future where astronauts have nourishing, flavorful food reminiscent of home -- a giant leap from their current staple of...
TED Talks
TED: The 100 tampons NASA (almost) sent to space -- and other absurd songs | Marcia Belsky
Performing two original songs, stand-up comedian, writer and musician Marcia Belsky shares comical commentary on some peculiar aspects of our culture -- from Instagram-stalking your crush to fending off mansplainers on social media --...
TED Talks
TED: What the discovery of exoplanets reveals about the universe | Jessie Christiansen
What are the planets outside our solar system like? Astrophysicist and TED Fellow Jessie Christiansen has helped find thousands of them (and counting), and the variety is more wonderful and wild than you might imagine. She shares details...
TED Talks
TED: The marvels and mysteries revealed by the James Webb Space Telescope | Heidi Hammel and Nadia Drake
From favorite moons to the search for alien life, astronomer Heidi Hammel discusses the latest in astronomy and the breakthrough innovations behind her work with NASA's James Webb Space Telescope. In conversation with science journalist...
TED-Ed
TED-Ed: What would happen if you lost your sense of touch? | Antonio Cataldo
We don't often think of touch as being a vital part of movement, but touch is one part of a network that oversees all the sensations arising from the surface and interior of our bodies. Touch, pain, temperature, and our spatial awareness...
PBS
Theater in rural Appalachian Virginia brings regional themes to the stage
Barter Theatre, which opened during the Great Depression and is thriving 90 years later, is known for bringing regional themes to its rural Appalachian stage. Jeffrey Brown visited Abingdon, Virginia, to show the changing face of the...
Curated Video
SPACE: SPACE SHUTTLE:ENDEAVOR MISSION UPDATE
English/Nat
Two U-S astronauts have successfully and safely completed a six and a half hour space walk outside the U-S space shuttle Endeavour.
They went through a series of exercises for building an international space station, all ...
Curated Video
SPACE: SHUTTLE ATLANTIS ON ITS WAY TO MIR SPACE STATION UPDATE
English/Nat
The astronauts on the U-S shuttle Atlantis are enjoying their second day in space.
On Friday evening (EST) they'll hook up with the Russian space station Mir, bringing food, water and urgently needed repair equipment.
They...
Curated Video
Russian cosmonauts spacewalk while carrying Olympic torch
Two Russian cosmonauts took the torch for the next year's Sochi Winter Olympics on an historic spacewalk on Saturday.
NASA Live TV showed Russian cosmonauts Oleg Kotov and Sergei Ryazanskiy carrying the unlit Olympic torch through the...
3Blue1Brown
Abstract vector spaces | Essence of linear algebra, chapter 11
What is a vector space? Even though they are initial taught in the context of arrows in space, or with vectors being lists of numbers, the idea is much more general and far-reaching.
PBS
Why String Theory is Right
Some see string theory as the one great hope for a theory of everything - that it will unite quantum mechanics and gravity and so unify all of physics into one glorious theory.