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RE: Unraveling cosmic neutrino anomalies with Anita (and sterile neutrinos)
Hey @lemouth, thanks for another great piece.
I can understand (thanks to some previous blogs of yours regarding dark matter) that ultra-energetic neutrinos have a very weak interaction rate and therefore can travel enormous distances unaffected. But how is it possible that they can even travel faster than the speed of light in dense media? Even if they do yield energy from fainted radio-waves, what about general relativity?
Keep up the good work!
I will try to answer quickly. Feel free to ask for more information if needed (from my answer, for instance).
The golden rule is that the speed of light in the vacuum is the limit. In a specific medium, the speed of light is smaller.
It is similar to the Cherenkov effect, somehow, and there is thus no problem at all.
@lemouth I get your explanations during the comment session
Does it mean in specific medium one can't around the Earth 7.5 times in one second from the right numbers of speed of light (299,792 kilometers per second)
The speed of light in the atmosphere is roughly equal to the speed of light in the vacuum. The difference is actually of one third of a permile. Therefore, it can be practically ignored.
Okay...... I get it now
Yep, although this is different for ice, for instance.