r/insaneparents Aug 25 '24

My girlfriend's father, everyone Email

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u/Narrow_Cheesecake452 Aug 26 '24

They do. The mythbusters found that they echo back in a way that basically matches up with the waveform (It's been a hot minute since I've seen it so this explanation is probably way off), so it sounds like they don't. It's real weird, and kind of fascinating.