So we have Weather and Climate... but are they the same thing? No, no they are not. But they are both super important to how the geosphere is shaped. In this episode of Crash Course Kids, Sabrina chats with us about the differences...

Einstein didn't like quantum mechanics because it wasn't able to make perfect predictions... but science is not about what you like, it's about what's true!

Inattentional blindness is a phenomenon where we can be so focused on a given task, we completely miss some pretty bizarre object cross our line of vision. Like a gorilla in the middle of a basketball game. But exactly why it happens is...

Einstein didn't like quantum mechanics because it wasn't able to make perfect predictions... but science is not about what you like, it's about what's true!

Variables: What are they? In the case of engineering, variables are a condition or value that can change. Sometimes we control a variable, sometimes we don't. In this episode of Crash Course Kids, Sabrina chats to us about how variables...

You can't help it; sometimes, you just get a bad feeling about someone that's hard to shake. So, what's happening in your brain when you make that critical (and often lasting) first judgment? Peter Mende-Siedlecki shares the social...

Our bones are multi-functional body builders, but perhaps their most mysterious function is the production of blood. Scientists now think they have a pretty good idea why this is where our blood gets made.

When you think about it, your eyebrows are a little strange! But they're also really important! From protecting your eyes to helping others know how you feel, those little bits of hair in the middle of your face have some big jobs!

There are natural poisons that lurk in bacteria, plants, and fungi pretty much everywhere, and they're there for good reasons (according to the organisms that produce them) - but what is it about their chemical make up that makes them so...

So we have Weather and Climate... but are they the same thing? No, no they are not. But they are both super important to how the geosphere is shaped. In this episode of Crash Course Kids, Sabrina chats with us about the differences...

It reviews cause and effect. It introduces the immediate cause and ultimate cause.

Howcast - Learn how to take headshots from professional photographer Chris Ryan in this Howcast video.

Howcast - Learn eight photography lighting basics and tips from commercial photographer Dan Bracaglia in this video from Howcast.

Howcast - Check out part 26 and race to the finish line in Resident Evil: Operation Raccoon City, the third-person shooter from Slant Six Games and Capcom.

Howcast - Check out part 16 and pay a visit to the boys in blue in Resident Evil: Operation Raccoon City, the third-person shooter.

Howcast - Check out part 4 and destroy the evidence in Resident Evil: Operation Raccoon City, the third-person shooter from Slant Six Games and Capcom.

Howcast - Check out part 1 and contain the G-virus in Resident Evil: Operation Raccoon City, the third-person shooter from Slant Six Games and Capcom.

Howcast - Learn how to use an umbrella as a weapon in this self-defense video from Howcast.

Howcast - Learn how to use a photography umbrella for portraits from professional photographer Joe Sinnott in this Howcast photography tutorial.

Howcast - Learn how to inexpensively set up studio lighting at home from professional photographer Joe Sinnott in this Howcast photography tutorial.

Howcast -Don't discard that boring old jacket just yet. Take this advice to spruce it up and add a fresh look.

Before you select a guard dog, find out what qualities to look for and what to avoid.

Give someone his or her own personal ticker tape parade with this easy prank.

Learn to set up the two types of pop-up tents. One expands like a large coiled spring; the other opens up like an umbrella.