t of motive power. the tension, the insulating properties of conductors, The aviator, like a bicyclist or a soaring bird, is con- and especially of cables, must also increase. Marked stantly engaged in regaining his lost equilibrium. If the Lilienthal did this by thrusting out his legs forward… … but his final model contained only that the tension does not pierce the CABLE SUBJECTED TO 90,000 VOLTS TENSION. insulation between the lead and the two parallel surfaces and resembled conductors. Paper is therefore an excellent insulator, wind freshened during the flight he was lifted, some- a…
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