@stevemould: When someone got in touch asking why helium balloons dampened sounds in a way that air-filled ones don’t, of course I had to investigate. Was my theory that the balloon acted as a kind of lens correct? Let’s find out.
It's much more likely that it's just a result of sound traveling more efficiently through denser gasses. Sound scatters way too much on that scale for Snell's law to work as expected. He also just did 0 actual tests to attempt to falsify the most obvious hypothesis
2026-05-19 07:19:35
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Ruben Alejandro305 :
If you pt that Ballon next to your ear, do you get a sensation of changing pressure? Not volume or sound change but an actual physical sensation that feels a bit like pressure change.
2026-05-14 00:13:15
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nmrsnr :
try with a not lens-shaped balloon, like a rectangle, which should have no focal point, and see if the sound is damped in the same way.
2026-06-10 17:03:19
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MarbleyCat :
This is really cool.
2026-05-15 03:23:14
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Mark Vassallo :
Interesting theory, but I am not convinced.
I believe that the very light helium insulates the sound and simply doesn't allow sound to be transmitted through it.
Only if you were able to put helium in a concave lens and magnifying the sound, would be able to prove your theory.
2026-05-13 13:19:50
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🅜🅔 :
Why is there p0r-n music playing in the background?
2026-05-16 21:09:47
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RAFI :
🥰🥰🥰
2026-09-01 05:46:38
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