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When many migrating birds undertake their arduous flights, they'll often arrange themselves in a V shape, but what drives ...
The frigid stream of air that plunged down into the Central U.S. this week is breaking cold records from South Dakota to Texas, with temperatures in the single digits setting records in many ...
The system, known as a polar vortex, is forecast to bring subzero temperatures to the Midwest, Mid-Atlantic and deep into the South. And it looks as if we may get more arctic blasts in the coming ...
Ask the publishers to restore access to 500,000+ books. A line drawing of the Internet Archive headquarters building façade. An illustration of a heart shape "Donate to the archive" An illustration of ...
By the planar laser-induced fluorescence method, the qualitative flow visualizations of the flow field of wings and the wingtip vortex are demonstrated. Riblets weaken the flow separation of the ...
These raked wingtips are more efficient for larger aircraft, and still provide comparable wing tip vortex suppressing properties and comparable fuel savings to winglets. Aside from fuel savings ...
A giant quantum vortex may allow researchers to study black holes. This vortex is an eddy in a special form of liquid helium that displays quantum effects. The result has some properties similar ...
According to NASA, wingtip vortex trails “are often thought to be a type of contrail but are actually produced from a different process”. They form due to a drop in pressure and temperature when a ...