what X-rays of my teeth at the dentist show and why it has to be radioactive and what the heavy apron does
In: Physics
X rays aren’t radioactive, but the energy they make is a lot like harmful radioactivity. When an x-ray machine is off, there’s no radiation. On the other hand, a chunk of radioactive material gives off radiation constantly. The amount of radiation from a modern dental x ray is very tiny but the dentist wants you to be safe. Turns out, lead greatly reduces most radioactivity and X rays.
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