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science porn: визуализация небольших изменений показателя преломления воздуха -- https://www.youtube.com/watch?v=px3oVGXr4mo
Какая идея красивая ‎· extraordinary collection of cats
вот ещё красивее: you print a bunch of random dots on paper, and use a camera to see the subpixel shifts in the dots. ( see http://en.wikipedia.org/wiki/Synthetic_schlieren ). By cross-correlation, you get the change in refractive index/density of air. -- http://www.ualberta.ca/~bsuther/papers/procsorrento0998/repri... ‎· ati

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