Lawnmowers droning, cicadas buzzing, the slightly skewed tune of ice cream trucks — some sounds that play the songs of summer. But of all the noises that make up the warm season, there’s one sound ...
Researchers observed hummingbirds using 12 high-speed cameras, 6 pressure plates and 2176 microphones. The soft and complex feathered wings generate sound in a fashion similar to how the simpler wings ...
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