5 ms·
Technically, no. However there are metamaterials in which certain wavelengths exhibit a negative index of refraction, which cause light to behave in some ways
by aidenn0 21d ago
Technically, no. However there are metamaterials in which certain wavelengths exhibit a negative index of refraction, which cause light to behave in some ways similarly to if it were moving faster.
https://en.wikipedia.org/wiki/Negative-index_metamaterial https://en.wikipedia.org/wiki/Negative-index_metamaterial