whirling arm मीनिंग इन हिंदी

उदाहरण वाक्य

1. English military engineer Benjamin Robins ( 1707 & ndash; 1751 ) invented a whirling arm apparatus to determine drag.
2. Sir George Cayley ( 1773 1857 ) also used a whirling arm to measure the drag and lift of various airfoils.
3. His whirling arm was long and attained top speeds between 10 and 20 feet per second ( 3 to 6 m / s ).
4. Lilienthal had made " whirling arm " tests on only a few wing shapes, and the Wrights mistakenly assumed the data would apply to their wings, which had a different shape.
5. It's impossible to say for sure, just as it's impossible to say why Langland and McCall juxtaposed wild runs and whirling arms with tiny finger wigglings and blinks of the eye.
6. To study the aerodynamic behavior of different forms traveling at high speeds he built a large spring " whirling arm " to which stuffed birds and wings he made were attached.
7. About 1885 Montgomery began a long series of experiments with a whirling arm device, a smoke chamber, a water current table and large wooden surfaces angled into the wind in order to understand the physics of flow around curved surfaces.
8. Cayley's first innovation was to study the basic science of lift by adopting the whirling arm test rig for use in aircraft research and using simple aerodynamic models on the arm, rather than attempting to fly a model of a complete design.
9. As and are at right angles, the latter parallel to the whirling arm system an aerodynamic surface is held at a fixed angle of attack and both the magnitude and direction of the resulting force measured, they can be plotted using polar coordinates.
10. He introduced the use of the whirling arm test rig to investigate the aerodynamics of flight, using it to discover the benefits of the curved or dihedral, diagonal bracing and drag reduction, and contributed to the understanding and design of ornithopters and parachutes.