Science Underground

Astronauts wear special suits so that they can work many hours in space. Find out about a special accessory they wear, which is very useful if they drank too much Tang in the morning.

Scientists have made invisibility cloaks in the laboratory. What does it take to make something invisible? A bit of brain trickery.

Pi is the mysterious number of 3.14 that keeps our appliances running, our GPS going, and our clocks ticking. This number is pretty sweet.

We keep time by measuring repeating patterns, like a swinging pendulum or the earth's rotation. But, the best way to measure time is with atoms inside atomic clocks.

In the 1700s, a scientist was dissecting frogs and found the legs twitched when touched with his tools. This freaky experiment allows us to make golden statues and get power from batteries.

To send messages over long distances, the ancients used a drum. Recently, scientists have discovered how drum beats travel for miles with the help of the surface of the Nile.

Chocolate is tasty chemistry. What takes weeks to prepare, takes moments to enjoy. The steps from tree to your tongue are described.

Concussions seem to be in the news lately. A leading expert explains what is going on in the brain during a concussion.

The design of the high heel shoe is over a century old. However, there are new materials and modern technologies that can make shoes more comfortable. Fashion engineers are on a mission to rescue hurting feet.

Water is clear, but snow is white. Light dances on the snowflake edges creating this white color.