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Find number abc

If b1435 - 1ca1b = 4ab19 find number abc. Multiple solutions may exist.

Correct answers: 0

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Lawrence Hargrave

Died 6 Jul 1915 at age 65 (born 29 Jan 1850). Australian aeronaut and inventor best known for his invention of the box kite. Hargrave “flew”on 12 Nov 1894, by attaching himself to a huge four kite construction attached to the ground by piano wire. Due to their abilities to carry heavy payloads, steady flight, and capacity for high altitude flight, these kites have had many industrial and military uses in the past. Box kites were used until the 1930's to carry meteorological equipment for high altitude weather studies and by the Royal Air Force as sea rescue equipment to deliver radio aerials. Hargrave also made important studies of wing surfaces and worked with rotary engines and gliders.

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