Are vampires real? What is an out-of-body experience? Are crop circles proof that aliens exist? HowStuffWorks explores what is real and what is urban legend with this collection of Science Versus Myth articles.
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Are crop circles the work of alien visitors? Are they a natural phenomenon? Are they elaborate hoaxes perpetrated by some very dedicated humans? Learn how researchers try to separate the supernatural from the scientific.
By Stephanie Watson
Déjà vu is used to describe the feeling that you experienced a situation before. What causes this phenomenon? It’s not a glitch in the matrix, but most of our knowledge on the subject is still theoretical.
In the news coverage of the Russian submarine accident, I read that the Norwegian salvage divers used a technique called saturation diving, whereby they could stay underwater for days to weeks at a time. How does saturation diving work?
A CART race at Texas Motor Speedway was cancelled because the G-forces on the drivers were too high. How can you calculate the G-forces, and how do the cars generate forces that high?
If you were to fly west around the world, fast enough so that you crossed one time zone every hour, would you stand still in time?
You've heard the saying for ages, but exactly why is it so dangerous to go swimming right after you eat?
I've wondered about this since I was a child and used to spin around and around. I know it has something to do with our ears, but what exactly makes people dizzy when they spin?
The time and date is something that we typically take for granted each day. Find out how they both work here.
There's actually an equation to figure it out!
A helium balloon rises because the helium is lighter than air. So how would a balloon -- made from a very sturdy but very lightweight material -- that had been removed of all air respond?
If you could spin a carousel fast enough to get its rim moving at nearly the speed of light, would time stand still for people on the carousel?
The standard definition of floating was first recorded by Archimedes and goes something like this: An object in a fluid experiences an upward force equal to the weight of the fluid displaced by the object. So how does the water get displaced to keep a boat afloat?
February is an unusual month, especially when it comes to leap years. In this article, you can read about why we use leap years and how the year 2000 was a leap year and 1900 was not.