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An acoustic short circuit is a phenomenon in which sound waves interfere in such a way that both waves are canceled out. This occurs when the peak of one wave aligns with the trough of another, and the compressions and rarefactions of each wave neutralize each other. [ 1 ]
Parasitic oscillation is an undesirable electronic oscillation (cyclic variation in output voltage or current) in an electronic or digital device. It is often caused by feedback in an amplifying device. The problem occurs notably in RF, [1] audio, and other electronic amplifiers [2] as well as in digital signal processing. [3]
The circuit usually includes a delay between the sound stopping and switching direction, to avoid the circuit turning off during short pauses in speech. A special case exists, if there is enough energy to power the system directly. For example, a microphone may send a voltage high enough to directly operate a transmitter. [2]
If they are hot swapped, the devices must be similar enough that the driver running on the host system recognizes and can be used with the new device. Otherwise, the new device will not function properly. While this is seldom an issue with standard keyboard devices, the host system rarely recognizes the new device attached to the PS/2 mouse port.
Stiction causing moving parts to stick; an external impulse sometimes restores functionality. Non-stick coatings, reduction of contact area, and increased awareness mitigate the problem in contemporary systems. [9] Particles migrating in the system and blocking their movements. Conductive particles may short out circuits like electrostatic ...
Bill Murray appeared on Travis and Jason Kelce’s “New Heights” podcast (via The Daily Beast) and defended the current cast of “Saturday Night Live” from critics who say the show has ...
The first woman was elected to lead a country 64 years ago. Here’s a look at where, and when, women have secured national leadership positions since then.
Even though the flat spring unflexes as it moves downward, the switch is designed so the net effect is acceleration. This "over-center" action produces a very distinctive clicking sound and a very crisp feel. In the actuated position the curved spring provides some upward force. If the actuator is released this will move the flat spring upward.