If a barrel is poured in the vegetable garden or cistern in the shower — the water level in them will tell you a simple water-measuring device consisting of a Styrofoam float and stuck to his line or rod with the labels. For greater stability of water-measuring devices are required on the barrel to put the bar with the guide bushing.
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THE RADIATOR FOIL
Fast and simple — to manufacture heat sinks for transistors and microcircuits made of copper or aluminum foil with a thickness of 0.1—0.3 mm. Plates are cut with scissors, carefully...
REPRODUCTION INSTALLATION
And this is the easiest bracket to mount the camera. A sheet of plywood with a thickness of 12-16 mm and a size of 576X576 mm shall be marked in accordance with the drawing. After sawing...