The Bookshelf for boys and girls Book of Wonders and Curious Things (1912)
University Society, New York · New York: University Society · leaf 156
ith the aid ofone of these they traveled a distance of over amile without touching the earth, and flew ashigh as sixty feet above it. lift a man into the air, so much strength has it.Taking Professor Bells idea, the late ProfessorLangley, of the Smithsonian Institution at Wash-ington, designed a… … STEERING AN AIR-SHIP UPWARD BY SHIFTING THE MAN S WEIGHT ALONG THE CAR-FRAME. It was not long before many other inventors triedto excel the achievement of Santos-Dumont, butfor a considerable while no machine was madethat would remain in the air more than a shorttime. Of the great developments that…
Children's literature · Children's encyclopedias and dictionaries · Literature · Encyclopedias and dictionaries
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