If the room is cold, and you work at a Desk and do you have cold hands — warm them, here is an unusual mini-fireplace, build which is not particularly difficult. You only need a curved polished metal sheet on a heat-resistant stand, and a bunch of tablets of dry alcohol, familiar to tourists and hunters.
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If you want to align a dent in the soft metal or use a hammer in a similar situation where he can hurt the surface of the material, — wear it "soften" a shirt of leather or thick rubber:...
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