Using just two wooden bars, metal bars, vise and elastic steel wire, we can quickly produce the spring. Its length depends on the number of turns around the rod, operated by a bunch of wooden beams, between which is passed the free end of the wire.
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AND TAKE-OFF AND LANDING — VERTICAL
In June, 1961, AGARD released requirements NBMR-3, to tactical fighter-bomber and scout, intended to replace in service aircraft G. 91R, F-104G and Mirage III. It was assumed that the...
PROTECTION DIODES
To reduce the ripple in the filter of the rectifier sometimes try to put the capacitor as much as possible capacity. However, this is not always safe for the semiconductor valves. ...
