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Updated: April 30, 2025
Without exception they were ornithopters; that is, machines built on the bird-wing principle, sustaining themselves by a flapping motion rather than by air-pressure due to a propeller. Their size varied from one-seater affairs of very small size to craft large enough to hold a score. Most were gaudily painted. The surgeon's own machine was a two-seater, small but powerful in design.
They had broad, silvery wings, not feathered, but glistening almost as brilliantly as new-killed fish and with the same subtle play of colour, and these wings were not built on the plan of bird-wing or bat, Mr. Wace learned, but supported by curved ribs radiating from the body. Incredible as it appeared to Mr.
Why don't they reform their ways of living, instead of replacing a worn-out heart with a new one? They've perfected surgery, that's why! And why haven't they tried the screw-propeller? They've perfected the bird-wing principle!" "But that doesn't explain," objected Billie, "why they've been content with an autocratic system of government." Van Emmon considered this a dig at Powart.
By the fat funnels and the flags you can distinguish the English tramps, the German merchantmen, the French, Dutch, Italian, Portuguese traders, the smart "liners" from Liverpool, even the Arab dhows with bird-wing sails, even the steel, four-masted schooners out of Boston, U.S.A. You can imagine the toiling lighters, the slap-dash tenders, the launches with shrieking whistles.
They had broad, silvery wings, not feathered, but glistening almost as brilliantly as new-killed fish and with the same subtle play of colour, and these wings were not built on the plan of bird-wing or bat, Mr. Wace learned, but supported by curved ribs radiating from the body. Incredible as it appeared to Mr.
PLANE MONSTROSITIES. Growing out of the idea that the wing in nature must be faithfully copied, it is believed by many that a plane with a pronounced thickness at its forward margin is one of the secrets of bird flight. Accordingly certain inventors have designed types of wings which are shown in Figs. 28 and 29. Fig 29. Bird-wing structures.
Back in the Bluegrass, the earth was flashing with dew, and the air was brilliant with a steady light that on its way from the sun was broken by hardly a cloud. The woodland was alive with bird-wing and bird-song and, under them, with the flash of metal and the joy of breaking camp. The town was a mighty pedestal for flag-staffs. Everywhere flags were shaken out.
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