has the speed of light always been constant? Submitted by 2bornnot2b t3_zynqno on December 30, 2022 at 1:59 AM in askscience 48 comments 66
[deleted] t1_j29hdzy wrote on December 30, 2022 at 4:52 PM Reply to comment by cdstephens in has the speed of light always been constant? by 2bornnot2b [deleted] Permalink Parent −1−
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