Flying Machines Practice And Design Their Principles Construction And Working
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In our eReader you can find the full English version of the book. Read Flying Machines Practice And Design Their Principles Construction And Working Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Flying Machines Practice And Design Their Principles Construction And Working
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To quickly assess the difficulty of the text, read a short excerpt:
Per second, a convex, surface of 20 square inches will support nearly half a pound in this way.
He states that anyone can try the experiment by bending a sheet of note paper, as shown in fig. 16, fasten it to table at a, and by blowing a stream of air by mouth parallel to the table the curved part will be sucked upwards.
FIG. 16. Experiment showing Lifting Effect of Air on Back of Plane.
My own idea of the action is that the upward and slanting motion of the deflected stream creates a partial v...acuum on the convex back of the blade, much in the same way as by blowing a current of air across the mouth of a vertical pipe dipping into water creates a partial vacuum in the pipe, and the water flows up, see fig. 17. A somewhat similar action can be shown by an old experiment, fig. 18. Take a cotton reel and a card, hold the reel a short distance above a card blow down the central hole and the card will be sucked up. The air, as it flows out radially at considerable velocity, expands and becomes less in lateral pressure than the atmos- pheric pressure.
What to read after Flying Machines Practice And Design Their Principles Construction And Working?
You can find similar books in the "Read Also" column, or choose other free books by Rankin Kennedy to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Per second, a convex, surface of 20 square inches will support nearly half a pound in this way.
He states that anyone can try the experiment by bending a sheet of note paper, as shown in fig. 16, fasten it to table at a, and by blowing a stream of air by mouth parallel to the table the curved part will be sucked upwards.
FIG. 16. Experiment showing Lifting Effect of Air on Back of Plane.
My own idea of the action is that the upward and slanting motion of the deflected stream creates a partial v...acuum on the convex back of the blade, much in the same way as by blowing a current of air across the mouth of a vertical pipe dipping into water creates a partial vacuum in the pipe, and the water flows up, see fig. 17. A somewhat similar action can be shown by an old experiment, fig. 18. Take a cotton reel and a card, hold the reel a short distance above a card blow down the central hole and the card will be sucked up. The air, as it flows out radially at considerable velocity, expands and becomes less in lateral pressure than the atmos- pheric pressure.
What to read after Flying Machines Practice And Design Their Principles Construction And Working?
You can find similar books in the "Read Also" column, or choose other free books by Rankin Kennedy to read onlineMoreLess
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