If the flashlight is to strengthen the tin bracket with a motor from a child’s toy, the axis of which is planted miniature celluloid propeller, and connect the motor to the battery of a flashlight, get a portable fan, which could become a mechanical fan and refresh face in heat.
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JAVA-NO BATTERY
For the conversion of motorcycle into bezakkumulyatornyh I purchased: alternator 43.3701 (from motorcycles "Minsk" or "Sunrise"), two thyristor switch, CAT-1, the unit BKS-261.3764,...
THE PRECURSORS TO SPACE FLIGHT
In September 1931 under the Central Council osoaviahima of the USSR in the Bureau of air technology was organized by the Group of jet propulsion study (gird). Its first Chairman was the...
