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drag |
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dragResistance to motion a body experiences when passing through a fluid - gas or liquid. The aerodynamic drag aircraft experience when travelling through the air represents a great waste of power, so they must be carefully shaped, or streamlined, to reduce drag to a minimum. Cars benefit from streamlining, and aerodynamic drag is used to slow down spacecraft returning from space. Boats travelling through water experience hydrodynamic drag on their hulls, and the fastest vessels are hydrofoils, whose hulls lift out of the water while cruising. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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? Mentioned in | ? References in periodicals archive | ||
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| 1987: The effect of orographically excited gravity wave drag on the general circulation of the lower stratosphere and troposphere. The company's breakthrough was in its TwinDrag reels, which offer drag on both sides of the spool. That could cut drag on tractor-trailers by 35 percent or more, claims Georgia Tech engineer and team leader Robert J. |
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