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Science | Physical Science | Nuclear Science

Nuclear science is the study of sub-atomic particles and their application in various disciplines. Here you can learn about nuclear power plants, atomic theory and radiation.

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How Atomic Clocks Work

When the power goes out and is later restored, how do you know what time to set your clocks to? Have you ever wondered how time is regulated? Learn how scientists determine exact time.


How Nuclear Radiation Works

How Nuclear Radiation Works

Nuclear radiation can be extremely beneficial or extremely harmful -- it all depends on how it's used. Learn what nuclear radiation is all about. See more »

How does a Crookes' radiometer work?

I once saw this device shaped like a light bulb. It had a vertical support inside it, and on that support there were four vanes with four diamonds on the end. One side of the diamond was black and the other was white. I did a little research and found out that it was called a Crookes' radiometer -- how does it work? See more »

What is an atomic clock and how does it work?

Learn how time is measured and tracked by an atomic clock. See more »

How Atomic Clocks Work

How Atomic Clocks Work

Atomic clocks are the most accurate timekeepers in the world. Learn all about atomic clocks and how they keep the whole world on nearly perfect time! See more »