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Is a centrifuge force-based levitation system operable in the real world?

A system cannot act on itself to provide motion, levitation, or propulsion. A complex object can be made to look like it moves by shifting its center of mass, but the center of mass will stay as is, ...
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Is a centrifuge force-based levitation system operable in the real world?

This device is bogus. It cannot produce net thrust; it violates the law that forces come in pairs. It is strictly a science fiction device. As a college freshman 53 years ago I tried to build a ...
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Mechanism for fast vibration

100 Hz is what we call „bass“ in music. So a well proven device is called „speaker“, which comes in many flavors, and which is excited by electric signals, like sine, square, saw, noise, voice etc. ...
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Mechanism for fast vibration

An electromagnetic buzzer is effectively a solenoid with the switch wired to the coil supply. Closing the primary power to the coil causes the solenoid to retract, which then opens the switch causing ...
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How to calculate the mechanical advantage of torque reaction arms (or balanced articulated arms)?

In each joint, The moments are the weight of the load plus the weight of the lift arm(s) multiplied by the distance to the joint. setting the moments sum about the joint equal to zero will give ...
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