Procurability plastic ball out of the game, because it irrevocably loses its original elasticity. However, the material from which it is made, is good, and it is a pity to throw away. The child is not upset, suggest they make a ball… a basket for mushrooms. To do this, from the case carefully enough to cut out two pieces, as shown in the picture — you will get easy and convenient container with a handle.
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POLYETHYLENE COVER
From the lids for mayonnaise-tion jars and milk bottles can be cut uplotnitelya strip — polyethylene sufficiently elastic material. And cut the rim of the lid — ready clamp for rubber...
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allows you to quickly verify the health of the quartz resonators. Diagram of the device consists of a generator (T1), detector (D1, D2) and DC amplifier (T2). By connecting the quartz to...
