BrainStuff: How Do Farts Work?

Sure, flatulence is embarrassing. But why do we do it?

BrainStuff: How Does A Gas Nozzle Know When To Shut Off?

If you've ever put gas in a car, you've probably noticed how the gas pump shuts off when your tank is full. But how does it know to do that? Learn more about the clever mechanism that keeps your gas tank from overflowing in this episode.

BrainStuff: How Do We Know What Dinosaurs Looked Like?

Can we really reconstruct a dinosaur’s appearance from a bunch of million-year-old fossils? How?

BrainStuff: How Does The Common Cold Work?

We've all had a cold at one point or another; it entails an uncomfortable cocktail of symptoms like sneezing, coughing and a runny nose. But why do we get colds? How do they work? Find out in this episode of BrainStuff!

BrainStuff: How Is An Autopsy Performed?

When you need someone to exam a corpse to determine a cause of death, how do they conduct the autopsy?

BrainStuff: How Does Dry Cleaning Work?

Dry cleaning is not actually clean -- instead, it uses a petroleum solvent in place of water. Learn more about dry cleaning in this episode of BrainStuff.

BrainStuff: Where's the best place to sit in a movie theater?

When it comes to where you should sit in a movie theater to get the best experience, it's mostly a matter of preference. Except when it comes to sound. Find out why -- and where you should sit -- in this episode.

BrainStuff: BrainStuff Outtakes 02

BrainStuff Outtakes.

BrainStuff: How Do Microwave Ovens Work?

They’re convenient, ubiquitous and easy to use. But how do these things work, exactly? What do people mean when they say a microwave cooks food inside out?

BrainStuff: Why Do People In Old Movies Talk Weird?

It’s not quite British, and it’s not quite American – so what gives? Why do all those actors of yesteryear have such a distinct and strange accent?

BrainStuff: Why Do We 'See Stars'?

When you bash your head and “see stars,” what’s going on? Why does your brain pick this moment to give you a laser light show? Josh explains the phenomenon of seeing stars in this Brainstuff video.

BrainStuff: How Do GPS Coordinates Work?

So you’ve seen those location-tagging numbers on maps and GPS devices before, but do you actually know what they mean? Brainstuff is here to fill you in.