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 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?


How Radiation Sickness Works

How Radiation Sickness Works

Radiation sickness can be terrifying, painful and -- in some cases -- fatal. Learn about the causes and symptoms of radiation sickness. See more »

How Radioactive Cleanup Works

How Radioactive Cleanup Works

Radioactive cleanup is a dangerous but important task following a nuclear disaster. Learn how radioactive cleanup works. See more »

How a Nuclear Meltdown Works

Nuclear meltdowns can be scary, but it's important to understand what causes them. Learn about how nuclear meltdowns work. See more »

Alpha, Beta or Gamma? It's the Nuclear Radiation Quiz

Alpha, Beta or Gamma? It's the Nuclear Radiation Quiz

Nuclear radiation can come from a variety of sources -- not just nuclear reactor meltdowns. Test your knowledge with the nuclear radiation quiz. See more »

How a Nuclear Reactor Works

How a Nuclear Reactor Works

Over the years, nuclear reactors have been viewed as both a miracle and a menace. How does a nuclear reactor do its job? See more »

Image Gallery: Nuclear Meltdown Disasters

Image Gallery: Nuclear Meltdown Disasters

Nuclear meltdown disasters raise concerns about the technology's safety. See pictures of some of the most catastrophic nuclear meltdown disasters. See more »

Image Gallery: Inside a Nuclear Power Plant

Image Gallery: Inside a Nuclear Power Plant

Are you wondering how nuclear power plants work? Tour the inside of a nuclear power plant with these pictures to learn more about this technology. See more »

How Japan's Nuclear Crisis Works

How Japan's Nuclear Crisis Works

Japan's nuclear crisis involved the failure of multiple safety measures. Learn how Japan's nuclear crisis works. See more »

What would nuclear winter be like?

What would nuclear winter be like?

Nuclear winter occurs after the detonation of nuclear weapons -- it's a grim scenario. Learn about the nuclear winter forecast and predictions it'll happen. See more »

How Radiation Works

How Radiation Works

Radiation is a loaded word. Believe it or not, not all radiation is bad for your health. Learn which radiation is deadly and which isn't deadly. See more »