Weird & Interesting science, take 2

[classicdrogn]

How the world sounds (and in some cases looks) to animals


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Of course, it's just playing with playback speed adjusted to account for speed of perception as determined by brain activity in response to the speed of flashing lights, because how would you even demonstrate hearing outside the human range to a human audience, but it's still pretty nifty, especially the bit with bird calls.