a: visible light ~
b: tennis balls


"An analogy I like is that your body is like a chain link fence. Visible light is like tennis balls - they are big and hit the fence but bounce off. Gamma rays are like bullets from a gun - they are tiny and often pass through without hitting anything, but they are very energetic and if they hit something they will destroy it."

Writer: landryraccoon
Date: Feb 13 2015 10:43 AM

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