User contributions for 2601:80:C97F:EFD0:C901:84BE:3D6A:D71D
For 2601:80:C97F:EFD0:C901:84BE:3D6A:D71D talk block log logs filter log
23 December 2021
- 06:5406:54, 23 December 2021 diff hist +755 Talk:Refractive index →"how fast light travels" vs "how slowly light travels": new section Tags: Mobile edit Mobile web edit
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