speedo face repair

[Rob Beale]

Leave it undisturbed.

Alpha particles are the most damaging as they have high Ionising ability which damages cells. Fortunately they have the least penetrating ability and a sheet of paper, or our skin will stop them. Problems arise when they are ingested.

Beta particles are more penetrating, but less ionising. A sheet of thin aluminium will stop them.

Gamma rays are just energy, very high penetration, (several cm of lead) but very low ionising ability.

Those girls used to shape the paint brush tips with their lips!

Rob