A fluid or oil is supplied to market in plastic canisters of different capacities. A worn or leaky thrown into the garbage. However, one can do some useful things — for example, podtsvetochniki or scoop, similar to what is shown in the figure.
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CLIP-CLOTHESPIN
For fixing the film during drying, usually use special clothespins or clips. But if these instruments are at hand does not, they will replace ordinary paper clip.
WORKING WITH FOAM
Offer two method of cutting large sheets of foam. Nichrome filament is suspended vertically (Fig. 1) or stretched horizontally to the table surface (Fig. 2). Adjusting in the first case,...
