ELI5: How do we know that light is the fastest thing in existence? Submitted by Grump-Dog t3_10pfa2s on January 30, 2023 at 9:54 PM in explainlikeimfive 32 comments 10
Chadmartigan t1_j6k5jrl wrote on January 30, 2023 at 10:15 PM Reply to comment by is_this_the_place in ELI5: How do we know that light is the fastest thing in existence? by Grump-Dog Same speed, c. Permalink Parent 4
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