Perspective is everything, especially when it comes to examining your beliefs. Are you a soldier, prone to defending your viewpoint at all costs -- or a scout, spurred by curiosity? Julia Galef examines the motivations behind these two...

If you live in the United States, you might have recently gotten a credit card with a microchip on it. But what does this chip do that makes it any different than the magnetic strip on the back of the card?

Fake news spreads across the Internet like wildfire, and might even spread more quickly than real news!

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...

Garbage Doesn't Lie

SciShow explains how SciShow exists -- and everything else that's ever been made or used on a computer -- by exploring how transistors work together in circuits to make all computing possible. Like all kinds of science, it has its...

With the advent of the Internet and social media, news is distributed at an incredible rate by an unprecedented number of different media outlets. How do we choose which news to consume? Damon Brown gives the inside scoop on how the...

Learn how trees are able to communicate with each other through a vast root system and symbiotic fungi, called mycorrhizae. -- Most of the forest lives in the shadow of the giants that make up the highest canopy. These are the oldest...

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...

ank explains the gift that your brain gives you every day: the gift of neural plasticity -- the ways in which your brain actually changes at the cellular level as you learn.

For the past 70 years, scientists in Britain have been studying thousands of children through their lives to find out why some end up happy and healthy while others struggle. It's the longest-running study of human development in the...

2,300 years ago, the rulers of Alexandria set out to fulfill a very audacious goal: to collect all the knowledge in the world under one roof. In its prime, the Library of Alexandria housed an unprecedented number of scrolls and attracted...

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.

Remember that guy from 300? What was his name? ARG!!! It turns out our brains make and recall memories in different ways. In this episode of Crash Course Psychology, Hank talks about the way we do it, what damaging that process...

Your brain does its best to inform you about the world around you, but sometimes it gets tricked. Enjoy eight optical illusions to test your brain's sensory input.

Before there was Google, there were encyclopedias. The very idea of these vast collections of knowledge can be credited to Pliny The Elder. So who was he, and why does he seem to pop up everywhere from Alchemy to Zoology? Hank has the...

Computers and computing have changed a lot over the History of Science but ESPECIALLY over the last 100 years. In this episode of Crash Course History of Science, we have a look at that history around World War Two and how that conflict...

We love the internet! It's a wealth of information where we can learn about just about anything, but it's also kind of a pit of information that can be false or misleading. So, we're partnering with Mediawise and the Stanford History...

Scientists and Engineers spend over half of their working day reading, evaluating and producing text. Therefore it is important that we produce students that have a high level of scientific literacy. Students normally struggle with...

Hank begins a series of videos on organ systems with a look at the nervous system and all of the things that it is responsible for in the body.

Are you a left-brained person or a right-brained person? Spoiler: You're neither.

The more we read and watch online, the harder it becomes to tell the difference between what's real and what's fake. It's as if we know more but understand less, says philosopher Michael Patrick Lynch. In this talk, he dares us to take...

Psychologists think that you can learn a lot about people just by watching them boogie!

Day to day, hospitals provide all kinds of services to help us get better and stay healthy, but during an outbreak, hospitals are the front line of the emergency. In this episode of Crash Course Outbreak Science, we'll look at how...