3 ms·
"speed of light" normally means "speed of light in a vacuum" (eg see https://en.wikipedia.org/wiki/Speed_of_light https://en.wikipedia.org/wiki/Speed_of_light)
by zodiac 11y ago
"speed of light" normally means "speed of light in a vacuum" (eg see https://en.wikipedia.org/wiki/Speed_of_light https://en.wikipedia.org/wiki/Speed_of_light)
- lunchTime42 11y agovacuum is not empty? So its speed of light in quantum foam?
- zodiac 11y ago¯\_(ツ)_/¯