What coil do not occur now in our everyday life and tape, and fishing, typewriter and film projector and all have one awkward feature: they are wound — tends to unwind. For all of them a simple and reliable latch will serve kolejno of underwear elastic: soft and wide, it does not give content to unwind the coil.
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ELECTROCITY
Somehow I read in your magazine the article "rainbow on aluminum" and remembered a very convenient way of drawing figures and inscriptions on metal. Brush for these works is a glass tube...
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For more convenient use of masking tape or duct tape, there are special tapes with a knife, not giving to the same after use to stick the remaining end. In the absence of such a device...
