The pressure from the collet pencil, put on the shank of a suitable diameter drill bit, turning it into the simplest depth gauge required for control when performing nescopeck, equal to the depth of the holes.
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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...
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Booster "Diamond-A" in November 1965 into orbit the first French artificial satellite of the Earth. France became the third space power. Length of the rocket "Diamond-A" is about 19 m,...
