Remember that scene in The Hitchhiker's Guide to the Galaxy where Trillian makes toast with a lightsabre-esque knife? How hot would toast cut by laser-knife stay? It can't be that hot, or it would have been burnt during the cutting. If it was too cold, then the whole exercise would be rather pointless, since the toast would need heating afterwards anyway. This, for some reason, has bothered me for far too long.
Mokalus of Borg
PS - I get fixated on details like that sometimes.
PPS - And by "sometimes" I mean "practically always".
1 comment:
You assume that this laser knife can only generate heat on it's surface and that there isn't a larger field around it that heats the area that doesn't need to be cut.
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