Right Now in BrainStuff
The future of your favorite TV shows hinges on their ratings – but what is a rating, and where does it come from? See more »
BrainStuff: Why Do Some People Faint At The Sight Of Blood?
Josh explains the science of why people faint at the sight of blood. See more »
The next time you honk your car horn at that jerk who cut you off, you’ll understand how it uses physics to get the job done. See more »
We’ve all seen movies with supervillains building catastrophic Doomsday devices – but has anyone ever built a real one? Join Christian to learn how the Cold War led to the most dangerous nuclear system in history: Russia’s legendary – and terrifying – Dead Hand. See more »
What Causes the Northern Lights?
There are many misconceptions about what causes the Aurora Borealis when it really requires solar winds, magnetic fields and excited atmospheric gases. See more »
Christian defines what white noise actually is and how it's used to mask other annoying sounds. See more »
Do Supplemental Vitamins Actually Work?
A vitamin a day keeps you healthy to play. Or does it? See more »
BrainStuff: Is It Possible To Erase Your Memories?
Science suggests it's possible to erase specific memories. But even if we can, should we? See more »
For the vast majority of international travelers, a passport is a necessity. But why? See more »
Why Do I Need A Passport To Travel?
For the vast majority of international travelers, a passport is a necessity. But why? See more »
BrainStuff: Here's Why Helicopter Blades Can Look Strange On Video
Helicopter blades and other fast spinning objects often produce strange effects on camera. Lauren explains why. See more »
These insects live in your bedroom, drink your blood and stain your sheets. How do you get rid of them? See more »
Without the moon, how would Earth's environment be affected? Would we survive? See more »
A plumber in Alaska invented a bizarre condiment that launched a multimillion dollar industry, and today ranch is the most popular salad dressing in the US. But what exactly is this stuff? See more »
You’ve heard of fracking, and you’re pretty sure lots of people don’t like it, but do you know how it actually works? See more »
What do fireflies, TVs, neon signs, and glowsticks have in common? See more »
Does Your Name Determine Your Future?
How much does your name actually matter? Are some names going to make you rich, while others make you poor? See more »
What Happens When I Have A Hangover?
If you've ever had a few too many beers at a party, then you've probably encountered the symptoms of a hangover -- the pulsing headache, dry mouth, nausea and more. But what's actually happening to you? And what is it about alcohol that can turn a wonderful Saturday night into an agonizing Sunday morning? See more »
Sitcoms use laugh tracks all the time. But where do they come from? See more »
Why Do You Hate the Sound of Your Own Voice?
The recorded sound of your voice usually makes you cringe because of two ways vibrations reach your ear. See more »
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