There are lasers that are powerful enough to punch holes through metal plates… in fact, I’ve seen a photo of someone’s thumb with a little hole straight through the fingernail and all the way through the finger too… No bleeding though, because the laser cauterised the wound at the same time! Fortunately, I’ve never hurt myself using a laser, although I’ve given myself a bit of a scare a couple of times – it really gets your heart pumping.
Lasers can be very dangerous – and you should always be very careful when using lasers, so matter how small and weak you think it may be…
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