
When compressed air mixes with jet fuel and is
ignited in a turbine engine, the temperature can reach 3,000 °F. As a
result of this fiery exhaust, the turbine spins and then forces the air
through the back of the engine, and the jet moves forward. While
extremely hot air assists ...
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When you think of a beating heart, you might assume
it beats at regular intervals, but in actuality, velocity and pressure
change with every beat, and the time interval between each beat is
different. Now a NASA-developed technology is helping researchers
understand blood flow and pressure in ways that may ...
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In the 1980s, Jet Propulsion Laboratory (JPL)
scientists James Stephens and Charles Miller were studying the harmful
properties of light in space, as well as that of artificial radiation
produced during laser and welding work. The intense light emitted during
welding can harm unprotected eyes, leading to a condition called ...
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While the human eye can see a range of phenomena in
the world, there is a larger range that it cannot see. Without the aid
of technology, people are limited to seeing wavelengths of visible
light, a tiny range within the electromagnetic spectrum. Hyperspectral
imaging, however, allows people to get ...
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