The wonders of modern mechanismA résumé of recent progress in mechanical, physical, and engineering science . ed a pat-ent in England in May,1893. He gave thesewheels an oscillating,rotary motion, which heexpected to sustain themachine in the air at thesame time that it wasdriven forward. No one has been found to furnish themoney to build one; therefore its feasibility remains indoubt. In the same year. Otto Lilienthal, as the result of someyears experimenting, built a wing-like framework, andpractised soaring in the vicinity of Berlin, in the hope ofbeing able to maintain himself in the air a
The wonders of modern mechanismA résumé of recent progress in mechanical, physical, and engineering science . ed a pat-ent in England in May,1893. He gave thesewheels an oscillating,rotary motion, which heexpected to sustain themachine in the air at thesame time that it wasdriven forward. No one has been found to furnish themoney to build one; therefore its feasibility remains indoubt. In the same year. Otto Lilienthal, as the result of someyears experimenting, built a wing-like framework, andpractised soaring in the vicinity of Berlin, in the hope ofbeing able to maintain himself in the air as do the wings were fifteen metres in area, and his method wasto take a run against the wind, from a roof-top situated ona hill, and jump into the air. In this manner he was ableto soar a distance of about eight hundred feet on a downgrade before reaching the ground. His experience was sounique that it would not be surprising if it were tried byothers as a sport, though no man can ever expect to developenough strength to fly in this way. PROFESSOR WELLNERS AIR-SHIP. FLYING 22. 129. LILIENTHALS SOARING APPARATUS. Lawrence Hargrave, of England, built this same year asingularly light machine designed to imitate the flight of abird. It was seven feet long, and consisted of a tube orbackbone on which were mounted a pair of wings, yet theweight was only fifty-nine ounces. The backbone beingcharged with compressed air, this mechanical bird flewaway, covering a distance of three hundred and fifty feetbefore falling. His design was much like that of a , who had previously made smaller mechanicalbirds, using twisted rubber as a motive power. Thesebirds flew sixty-three feet. Mr. Hargraves experimentsled to the conclusion that by using steam in the backboneof his bird it could be made to fly over five hundred Hargrave has also built a seven-pound steam-enginethat developed two-thirds of a horse-power. Between 1890 and 1893, Horatio Phillip
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Keywords: ., bookcentury1800, booksubjectmachinery, booksubjectmechanicalengi
