YouTuber mrbibio hollo the optical trick you see here “ the static flow of H2O . ” The verbal description , of course , is an oxymoron ; how can something that is static also be flow ? And yet , the water supply in this television — which you may hear trickling , and for certain must be flowing — looks like suspend in midair . So what ’s really going on here ?
mrbibio explains :
You ’re actually view 25 dissimilar drops [ or segment of the current ] every minute … the waveform being meet through the speaker is oscillate the tube in a uniform path , so the drops exit the pipe uniformly , the frame charge per unit of the tv camera is synced with the speaker so the drop appear electrostatic , [ and ] the light shutter speed means the drops appear precipitous and quick-frozen in mid aura [ a longer shutter pep pill , in contrast , would capture more of each droplet ’s movement , causing it to seem blurry ] .
In other discussion , the camera is inject at 25 frames per sec , which is precisely the same rate that the tube carrying the water supply is being vibrated by the verbalizer . Furthermore , the current of water exit the tube not only break asunder into single droplet , it actually does so in a repeat rule . As a result , the droplets that frame simulate a nearly very figure ( and occupy an almost selfsame point in space ) every 1/25th of a secondment . A svelte singultus in the droplets between 1:49 and 1:56 reveals what happens when the framerate at which the camera is film fall out of sync with the absolute frequency of the retell droplet pattern .
A similar effect can be achieved with stroboscope ignition . The difference is that , with a strobe , you ’re cope with periods of illumination ( rather than the framerate of a camera ) with the absolute frequency of your droplet figure . The number of clock time the strobe flashes per irregular , and the length of each flash bulb , correspond to the camera ’s framerate and shutter fastness , respectively .
[ mrbibioviareddit ]
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