Might be a daft question, but is radiation 'contagious' from person to person?
I guess if you had a source of radioactive material that could penetrate the skin, i.e. gamma radiation, then yes. But generally no. We all have low levels of radiation produced from potassium in our bones (I think that's the right element). The level a person would produce would be very very low, compared to just bricks in a house.
I'm wondering if I'm less bothered about radiation because from day one at school we were exposed to subjects like this. I bet many didn't really take it in, but we did demonstrations of different radioactive particles and well the most ionising types are stopped by a piece of paper.. never mind the skin.
