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How Zero Works
science.howstuffworks.com/math-concepts/zero.htm
You use the number zero all the time, but it may surprise you to learn that it sometimes isn't a number at all. It may surprise you even more to learn that it was all but invented. See what else surprises you about zero in this article.
How Astronauts Work
science.howstuffworks.com/astronaut.htm
Astronauts are adventurers and scientists who work in space. Learn who astronauts are and what they do in space and on Earth.
13 Iconic Photographs That Captured the World's Imagination
electronics.howstuffworks.com/cameras-photography/tips/10-iconic-photographs.htm
Among the millions of pictures taken every year, some capture our hearts and stand the test of time. Here are the stories behind 13 of the most iconic.
How Barack Obama Works
history.howstuffworks.com/historical-figures/barack-obama.htm
Barack Obama is a candidate who ran for president in the 2008 United States election. Learn about presidential candidate Barack Obama.
What Is a QWERTY Keyboard?
computer.howstuffworks.com/question458.htm
Why are the keys arranged the way they are on a QWERTY keyboard? Learn why the keys on a QWERTY keyboard are arranged the way they are.
Dog Pictures
animals.howstuffworks.com/pets/dog-pictures.htm
Dog pictures give you a glimpse into the world of our favorite canine friends. See pictures of chihuahuas, pugs, poodles and more.
Did da Vinci really sketch a primitive version of the car?
auto.howstuffworks.com/da-vinci-car.htm
Did da Vinci really sketch a primitive version of the car? Discover the answer to the question, did da Vinci really sketch a primitive version of the car?
American Flag Pictures
history.howstuffworks.com/historical-figures/american-flag-pictures.htm
These American flag pictures show the different designs of the United States flag over time. Check out pictures of the American Flag in this collection.
Lapis Lazuli: Crystal Properties, Origins and Uses
science.howstuffworks.com/environmental/earth/geology/lapis-lazuli.htm
This ancient rock adorns King Tut's coffin and the Sistine Chapel. And at one time it was more precious than gold. What is it about this deep blue rock that has drawn us in for centuries?
7 Secret Caves We'd Love to See Inside
science.howstuffworks.com/environmental/earth/geology/secret-caves.htm
There are caves all over the world, but some are in places that are hard to explore - hidden by rocks, ruins or even under ice. We've found seven secret caves you probably never knew existed.