don't try these stunts at home

9 Laws of Physics That Don't Apply in Hollywood:

3. Everything is Illuminated: The Myth of Radioactivity

Film would have you believe that radioactivity is contagious and makes you glow in the dark. Where did this idea come from? The Simpsons? Perhaps, but the truth is that the most common forms of radioactivity will make you radioactive only if the radioactive particles stick on you. Radioactivity is not contagious. If a person is exposed to the radioactive neutrons from a nuclear reactor, then he can become slightly radioactive, but he certainly won’t glow. And because radioactive things emit light only when they run into phosphor – like the coating on the inner surface of a TV tube – you don’t really need to worry.