[ETL]

“moving through a medium faster than light”

Are they referring to the quantum mechanics phenomenon of “tunneling” ?

[doorgunner69]

After some thought, I suspect they are speaking of the slower velocity of electromagnetic radiation through materials. Like is evident in prism effects.

Maybe these particles are not affected by the material dielectric or refractive value, so they are effectively moving faster than photons while in the stuff?

[wideminded]

Are they referring to the quantum mechanics phenomenon of “tunneling” ?

Cherenkov radiation

Because light interacts with the atoms in clear materials, it effectively moves more slowly. Particles that are going faster than the speed of light in these materials can produce a kind of shock wave that appears as blue light, radiated in a cone around the direction of travel.