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Apart from man-made noise, it is the strongest component over the range of about 20 to 120 MHz. Little cosmic noise below 20MHz penetrates the ionosphere, while its eventual disappearance at frequencies in excess of 1.5 GHz is probably governed by the mechanisms generating it and its absorption by hydrogen in interstellar space. [citation needed]
Implicit memory centers on the 'how' of music and involves automatic processes such as procedural memory and motor skill learning – in other words skills critical for playing an instrument. Samson and Baird (2009) found that the ability of musicians with Alzheimer's Disease to play an instrument (implicit procedural memory) may be preserved.
The torsional deflection of a simple cylinder cannot radiate efficiently acoustic noise, but with particular boundary conditions the stator can radiate acoustic noise under torque ripple excitation. [8] Structure-borne noise can also be generated by torque ripple when rotor shaft line vibrations propagate to the frame [9] and shaft line.
Musical tones produced by the human voice and all acoustical musical instruments incorporate noises in varying degrees. Most consonants in human speech (e.g., the sounds of f, v, s, z, both voiced and unvoiced th, Scottish and German ch) are characterised by distinctive noises, and even vowels are not entirely noise free.
The whirly tube, corrugaphone, or bloogle resonator, also sold as Free-Ka in the 1960s-1970s, is an experimental musical instrument which consists of a corrugated (ribbed) plastic tube or hose (hollow flexible cylinder), open at both ends and possibly wider at one end , the thinner of which is rotated in a circle to play. It may be a few feet ...
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Ion channel shot noise: The number of ions that migrate through an open ion channel are discrete and random. [21] In synapses, the number of calcium ions that enter the postsynaptic side after a spike is on the order of 250 ions, [ 17 ] potentially making potentiation processes noisy.
Charlie Schmidt, who made the Keyboard Cat video. Keyboard Cat is a video-based internet meme.Its original form was a video made in 1984 by Charlie Schmidt of his cat Fatso seemingly playing a musical keyboard (though manipulated by Schmidt off-camera) to a cheery tune.