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radioactivity

Inside a Radioactive Lab
Image: iStockphoto.com/wellphoto

Inside a Radioactive Lab

You might think that radioactivity is found only at the scene of nuclear accidents and bomb blasts. Think again.

All around us, and even in us, certain elements are slowly changing into different elements, while spitting out certain particles and energy waves. These emissions can harm us, but also help us. Don't drink radioactive water, though, despite the old-time advice.

University of Nottingham
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Nuclear Chemistry: Part 1

Nuclear Chemistry: Part 1

Imagine a detailed course about radiation packed into 10 minutes, that's fun to watch. Here it is. More...

Video
Crash Course
Radiation: Facts, Risks, and Realities

Radiation: Facts, Risks, and Realities

You can’t avoid radioactive material; it’s everywhere. But you can test your home for high levels of radon gas. In the U.S., radon causes about 20,000 cases of lung cancer a year. More...

Article
Environmental Protection Agency
Nuclear Radiations

Nuclear Radiations

Find out about nuclear waste, and also the uses of radioactive materials, by clicking through all 5 pages of this tutorial. More...

Article
BBC
Henri Becquerel Discovers Radioactivity

Henri Becquerel Discovers Radioactivity

March 1, 1896 was a cloudy day in Paris that led to one of the most famous accidental discoveries in history. More...

Article
American Physical Society
How We Realized Putting Radium in Everything Was Not the Answer

How We Realized Putting Radium in Everything Was Not the Answer

Before people understood the dangers of radioactivity, they eagerly bought watches, cosmetics, drugs, and even foods containing the element radium. More...

Article
The Atlantic
Marie Curie and the History of Radioactivity

Marie Curie and the History of Radioactivity

Marie Curie spent 8 years saving money so she could attend university. Then she won 2 Nobel prizes for discovering new elements and a lot about radioactivity. More...

Article
The Science Museum, London
Modern Physics: Radioactivity

Modern Physics: Radioactivity

Radioactive elements slowly change into different elements. As they do so, they can kill us, cure us, or tell us how old something is. More...

Article
Physics4kids.com
Periodic Videos: Uranium

Periodic Videos: Uranium

No radioactive element is more famous than uranium. But does it deserve its ferocious reputation? More...

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University of Nottingham
Radioactive Fallout from Global Weapons Testing

Radioactive Fallout from Global Weapons Testing

If you were born after 1951 and live in the continental U.S., you have been exposed to radioactive fallout: that is, radioactive particles left over from nuclear bomb tests. More...

Article
Centers for Disease Control and Prevention
Radioactivity Breakdown

Radioactivity Breakdown

Click here for a quick rundown of radioactivity: what kinds there are, where they come from, and what they can do to us. More...

Article
Physics.org
Radioactivity in Nature

Radioactivity in Nature

You'll find lots of info here about radiation, and about the radioactive elements around you and in you. There are more than 60. More...

Article
Idaho State University
Types of Decay

Types of Decay

Take as much from this video as you want. Get a crystal-clear introduction to radioactive decay, or keep watching and dive into the math. More...

Video
Khan Academy
What Is Radioactivity?

What Is Radioactivity?

Like a radioactive substance, this site peppers you with particles. But they're particles of information. Try the quiz and see how many got into your brain. More...

Interactive
BBC

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