The speed faster than light speed were observed in many experiments. (Speed of light in the media of coarse)
The particle moving faster than light starts to emitt "Cherenkov radiation".
No time reversing were observed so far.
Speed of light is not a constant.
That's why my glasses works.
Speed of light depend on the media it propagete through.
Refractive index indicates how the light speed slowing down.
There are a lot of publications show that air refractive index depends on temperature and on pressure.
The...
Could somebody explain me the following:
According to GR time dilation due to gravitational field is expressed as:
T_{g}=T_{f}*\sqrt{1-\frac{2GM}{rc^{2}}}
where Tg is time with gravitation,
Tf is time somewhere without gravitation
G - gravitational constant
M -...