D88EC7E8-E3FB-4F6D-A2CE-00F7A1C48C48@1xCreated with sketchtool.
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D88EC7E8-E3FB-4F6D-A2CE-00F7A1C48C48@1xCreated with sketchtool.Watch from niconico

スズメが1秒間に何回羽ばたくか数えてみたWatch from niconico

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スズメが1秒間に何回羽ばたくか数えてみた

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https://nico.ms/sm42802849?ref=thumb_watch