4 ms·

Yes, it's pretty much the opposite of a dielectric. It's a good conductor with mobile charges, and cannot support any polarization.

• dukwon 8y ago
  But it's good enough for ANTARES/KM3NET to see Cherenkov light, which I believe requires a dielectric medium.
  • cozzyd 8y ago
    The problem is that radio doesn't propagate well in sea water (since it's conductive) so you can't observe the interaction from far away in the radio.
    • dukwon 8y ago
      Gotcha, thanks.