Phineaz@feddit.orgtoAsk Lemmy@lemmy.world•What's a technology that was cooler in its older iterations?
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2 days agoAt my job we recently had an old device that was used to produce the sound a phone makes when the line is busy, open, etc. . It’s about arm length and 20 cm thick, you can distinguish the cogs producing the phase from the signal.
Blowing into an enclosed space is chaotic, the fan has to push against air currents being deflected. Blowing into an open space (aka sucking out of you dishwasher) is much more orderly, the fan can simply pull the air out and there are much fewer air currents running orthogonal.
This is as far as my very basic knowledge goes here. You can try this effect by exhaling and inhaling air through a barely open mouth or a straw.
EDIT: On a related note, never “blow” during fellatio.