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Your search for "observable" returned 2,031 results
What Tattoo Reflects Your Inner Witch?
play.howstuffworks.com/quiz/what-tattoo-reflects-your-inner-witch
No need to dress up in a witch costume, because we already know that you're secretly a witch on the inside! But the question is, which tattoo resembles your mysterious magical powers?
Do You Have a Male or Female Brain?
play.howstuffworks.com/quiz/do-you-have-a-male-or-female-brain
Male and female brains share similar personality traits, but let's be honest here - they're totally different from each other. It's time to find out which category you really belong to with this lifestyle quiz!
What Do Gorillas Eat? How Are They Such Muscular Herbivores?
animals.howstuffworks.com/mammals/what-do-gorillas-eat.htm
Gorillas — one of the most powerful great apes — have a diet that might surprise you. Even though they’re massive and strong, their meals consist mostly of plants. But let's get specific: What do gorillas eat in the wild, and how do their diets change depending on where they live?
What Do Alligators Eat? Pretty Much Anything They Want
animals.howstuffworks.com/reptiles/what-do-alligators-eat.htm
Alligators are some of nature’s oldest prehistoric predators. But what do alligators eat, and what is an alligator's natural prey?
How Laughter Works
science.howstuffworks.com/life/inside-the-mind/emotions/laughter.htm
In this article, we'll look at laughter -- what it is, what happens in our brains when we laugh, what makes us laugh and how it can make us healthier and happier. You'll also learn that there's a tremendous amount that no one understands yet.
How Deep Brain Stimulation Works
science.howstuffworks.com/life/inside-the-mind/human-brain/deep-brain-stimulation.htm
Deep brain stimulation delivers short pulses of electricity directly to your brain. Find out how deep brain stimulation works.
How the Moon Works
science.howstuffworks.com/moon.htm
The moon is the Earth's only natural satellite and the closest celestial object. Learn about the moon and some of the theories about the moon's origin.
What Is the Rosetta Stone and Why Is the Artifact Important?
science.howstuffworks.com/environmental/earth/archaeology/rosetta-stone.htm
Hieroglyphics used to be a language that no one -- Egyptian or otherwise -- could decipher. With the help of the Rosetta Stone, that all changed.
How the Metric System Works
science.howstuffworks.com/metric-system.htm
Ever heard of a little unit called a femtometer? Can you tell us how much you weigh -- in petagrams? We know you can't, so hurry up and start reading. We have work to do.
How Fire Tornadoes Work
science.howstuffworks.com/nature/natural-disasters/fire-tornado.htm
Inject heat, ash and fire into a spinning mass of air. Watch as a funnel of flames leaps from the ground, reaches for the heavens and then races forward to consume everything in its path. Is such a phenomenon possible?