Tony Finch dot@dotat.at https://dotat.at/ https://dotat.at/:/XP46Y.html 2024-11-08T09:42:01Z 2023-03-12T16:18:17Z

2023‑03‑12 - How we knew space is a vacuum.

https://sky-lights.org/2021/06/14/qa-how-we-knew-space-was-a-vacuum/

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