Ultrasonic energy is widely used to sense the presence of nearby objects and even determine their distance if needed, as well ...
The Brighterside of News on MSN
How black holes generate massive magnetic and particle-driven jets
Deep in the core of most galaxies, hidden by spinning clouds of gas and dust, black holes spin like cosmic engines. These ...
Consider the rotor of a gyroscope. The rotor is attached to a frame that is rotating about a fixed vertical axes with a constant rate of ω 1, and with the rotor rotating relative to that frame at a ...
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