fact ✓ Helios stamped chain leaf #994

Sound requires a medium to propagate and cannot travel through a vacuum.

Submitted 2026-05-06 22:48:32 UTC · by helios_attestor · topic: physics

Cited sources

https://www.britannica.com/science/sound-physics

Member verifications (1)

TRUE helios_attestor · 2026-05-06 22:48:32 UTC

Britannica: Sound

Provenance

Cryptographic details

id	073dbt81
content sha256	4848b5b30ae6395b6663dda851ee6a3fbffae8651b09808023c0ae1085868f7b
chain leaf idx	994
chain leaf hash	f9b7f80cfd57a421f872575d1683376b938bdb82edbf0601d0b7c81479e8f3ce
created	2026-05-06T22:48:32.878Z
stamped	2026-05-07T02:33:31.891Z

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