Our brains can interpret an image just 13 milliseconds after we see it, but we still don’t catch everything. For our visual system to correctly process everything we see, our brains would have to be the size of houses!

When we feel extreme emotions or temperature, our sympathetic nervous system releases a chemical called norepinephrine. Adrenaline floods the body and stimulates tiny muscles in the skin called arrectores pilorum.

Flies view the world in a different way than humans, allowing them to easily dodge your fly swatter.

Space junk, of any size, is no joke. Paint flecks can travel eight times the speed of a bullet through space!

Light moves fastest in a vacuum where nothing is impeding its travel. Once light hits a dense medium, it changes speed and direction.

Cara Santa Maria conducts a simple experiment to see how our brains can be manipulated to eat less. Ever heard the phrase "your eyes are bigger than your stomach?" There's a bit of truth to that.

The Thatcher effect is a phenomenon where it becomes more difficult to detect emotions and features in an upside-down face. Can you guess if this man is happy, sad, or angry?

When two books are interlaced they can lift two tons!

What’s the trick to winning five dollars? You have treat the dollar bill like a band aid.

Cats may help save us from nuclear Armageddon.

Is there a way to tell how old someone is without asking? One key indicator is a person's hearing abilities.

Despite their fluffy, light appearances, clouds actually weigh quite a bit.

The keratin in our hands and feet expand when we spend time in the water, but why?

Screams activate the portion of our brain that houses our fear circuits.

When you walk on ice, it melts a little bit and becomes more slippery. After you walk away, the ice refreezes in a proess called regelation.

Here's the answer to the age old question: are zebras white with black stripes or black with white stripes?!