Why No One Has Measured The Speed Of Light
Veritasium · 6 則 HN 推薦
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Veritasium explains why the one-way speed of light has never been measured, only the round-trip speed, since measuring it requires synchronized clocks that assume the answer. It explores the implications for relativity.
HN 推薦的原因： Used as the standard reference in threads about light speed, clock synchronization and untestable assumptions in physics.
“I found the video very compelling even as a thought experiment.” 閱讀 HN 討論 ↗