stangenkunsten

stangenkunsten

Postby phred » Wed Dec 31, 2014 7:15 pm

long-distance power transmission (well, 4 km, anyway) existed before did electricity. Certain of the Amish use a steel rod system to transmit energy from a stream or river to the point of use. In medieval times they used wooden rods instead of the steel. One name for the system is stangenkunsten
phred
 
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