TED Talks
Sergey Brin: Why Google Glass?
It's not a demo, more of a philosophical argument: Why did Sergey Brin and his team at Google want to build an eye-mounted camera/computer, codenamed Glass? Onstage at TED2013, Brin calls for a new way of seeing our relationship with our...
Crash Course
Geometric Optics: Crash Course Physics
LIGHT! Let's talk about it today. Sunlight, moonlight, torchlight, and flashlight. They all come from different places, but they’re the very same thing: light! It’s what makes it possible for us to see the world around us, so it’s worth...
SciShow Kids
Grow Your Own Potatoes!
Potatoes are amazing! You can make them into french fries, baked potatoes, hash browns, potato chips, and tons of other tasty foods! And best of all, they're super easy to grow! Join Jessi and Squeaks to learn how!
TED-Ed
TED-Ed: The famously difficult green-eyed logic puzzle - Alex Gendler
One hundred green-eyed logicians have been imprisoned on an island by a mad dictator. Their only hope for freedom lies in the answer to one famously difficult logic puzzle. Can you solve it? Alex Gendler walks us through this green-eyed...
SciShow
Microscope The Tube That Changed the World
Humans have long known that glass bends light. However, it took us awhile to figure out that stacking lenses in a tube would open up a whole new world to science, finally allowing us a peek at the microscopic.
TED-Ed
TED-Ed: The science of smog - Kim Preshoff
On July 26, 1943, Los Angeles was blanketed by a thick gas that stung people’s eyes and blocked out the Sun. Panicked residents believed their city had been attacked using chemical warfare. But the cloud wasn’t an act of war. It was...
SciShow
4 Big Reasons to Get Your Eyes Checked (Even With 20/20 Vision)
If you don't have vision problems, getting an eye exam probably hasn't been your top priority, however visiting an ophthalmologist won't just tell you about your eyes, it can reveal a lot about your health.
SciShow
Choosing a Telescope: Bigger Isn't Always Better!
Before you take your relationship with space to a new level by getting a telescope, find out what you really need to make the most of your summer nights staring at the sky.
SciShow
Where Do Our Facial Expressions Come From?
Our facial expressions convey a lot about our emotions, but why? Hank explores how our evolution has helped form how we communicate with our faces.
SciShow
How Do Polarized Sunglasses Work?
The useful glare-blocking properties of polarized sunglasses are well-known to just about anyone who goes outside. What isn't so well-known is how they reduce glare in the first place. That answer is deceptively complicated!
TED-Ed
TED-Ed: How do glasses help us see? - Andrew Bastawrous and Clare Gilbert
Today, glasses help millions of people with poor vision be able to see clearly. But how? Andrew Bastawrous and Clare Gilbert help unravel the answer by explaining refraction - the ability of a transparent medium, like glass, water, or...
SciShow
Why You See Monsters in the Mirror
Staring into the mirror in a dark room can play some nasty tricks on your brain. Like many illusions, this can tell us about how your brain processes images.
TED-Ed
TED-Ed: All the World's a Stage by William Shakespeare
An animated interpretation of William Shakespeare's poem "All the World's a Stage"
SciShow Kids
All About Your Body! | Human Body Compilation
The human body is a complicated thing! To be able to move, fight off diseases, and even see colors, lots of different systems and organs need to work together. Squeaks' robot body is pretty complicated, too, so Jessi has put together a...
TED-Ed
TED-ED: The surprising reasons animals play dead - Tierney Thys
From lemurs to lizards, ants to amphibians, sharks to chickens, hundreds of animals "play dead" as a survival tactic. But how and why do animals do this? Tierney Thys explains how this curious behavior, known as tonic immobility or TI...
SciShow
Why Owls Are Night Ninjas
Equipped with unique adaptations that make them both good at hunting and getting their creep on, owls are totally the ninjas of the bird world.
SciShow
6 Animals with Extraordinary Adaptations to Cave Life
Living in a cave isn’t easy, but these six cave-dwelling animals have gained some amazing traits to help them survive there!
SciShow
Nadine The Robot Is Amazing And Creepy
Nadine the robot has been unveiled, and as robotics technology gets more advanced, humanoid robots are looking more and more human. In this episode of SciShow News we explore how Nadine works and why a lot of people find it creepy.
SciShow
Do we have more than 5 senses?
The Greek philosopher Aristotle used sensory experiences and body parts to propose that humans have five senses. But almost as soon as he proposed them, people noticed things that didn’t fit the bill. And the debate has continued ever...
SciShow
Do These Eyes Freak You Out?
If gigantic googly eyes make you want to run away, it’s because you are responding to a supernormal stimulus. But what is it, and why our brain responds to it?
SciShow Kids
Animal Tricksters!
Have you ever pretended to be something else? Some animals do too! Learn how animals use mimicry to keep safe, or to sneak a snack!
Crash Course
Nostrils, Harmony with the Universe, and Ancient Sanskrit Theater: Crash Course Theater #7
Ancient Sanskrit theater is one of the oldest theater traditions, and thanks to Bharata Muni and his treatise on theater, the Natyashastra, we can tell you quite a bit about it, all the way down to eyebrow and nostril poses. This week...
Crash Course
Online Advertising: Crash Course Media Literacy
You're being watched. That sounded more sinister than I intended, but online, it's true. Facebook, Instagram, Amazon, Netflix... the list goes on and on. They're watching what you do, what you shop for, what you watch... all of it. And...
TED-Ed
TED-ED: The evolution of the human eye - Joshua Harvey
The human eye is an amazing mechanism, able to detect anywhere from a few photons to a few quadrillion, or switch focus from the screen in front of you to the distant horizon in a third of a second. How did these complex structures...