Schlieren Imaging has always been a very narrow and specialized field of imaging. It can visualize air perturbations in a fluid-like way that can show the reach in this case of someone’s breath and heat dissipation to see if a mask makes a large enough difference in transmission of infected airborne particles compared to no covering.
By using a Phantom VEO4k 990 slow motion camera at 938fps and a speckled background with specialized angled lighting, researchers were able to test a variety of masks while coughing to see the effects. You can watch the video posted here and also check out the full study available here if you want to dig deeper.
In what may be described as a practical home application of a stroboscope, the Slow Dance frame by Wonder Machines makes it possible to see the deformation of objects without motion blur with your naked eye and or a typical camera. The Picture frame makes extreme vibrations on deformable lite objects i.e. a flower or bird feather and then uses a synced led light to match the deformation wave period. In essence, creating a snapshot of the motion in real time while your brain is processing the data to create a fluid almost magical effect.
At just $299 for the Slow Dance product, it becomes a very unique gift proposition or conversation starter piece. Electronic Stoboscopes have been with us since 1931, when Harold Edgerton (“Doc” Edgerton) employed a flashing lamp to study machine parts in motion. Now you can have a somewhat limited but beautiful display to experiment using the technique. The results are quite mind-blowing as the still life objects appear to take on a spark of life.
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