The Cherenkov effect A charged particle traveling in a dielectric medium with n>1 radiates Cherenkov radiation if its velocity is larger than the phase velocity of light v>c/n or Î² > 1/n (threshold) The emission is due to an asymmetric polarization of the medium in front and at the rear of the particle, giving rise to a varying electric dipole momentum.
cyclo-. 1. Combining forms relating to a circle or cycle; or denoting an association with the ciliary body. 2. In chemistry, a combining form indicating a continuous molecule, without end, or the formation of such a structure between two parts of a molecule.
The Cyclades (/ËsÉªklÉdiËz/; Greek: ÎºÏÎºÎ»Î¬Î´ÎµÏ, [cikËlaÃ°es]) are an island group in the Aegean Sea, southeast of mainland Greece and a former administrative prefecture of Greece. They are one of the island groups which constitute the Aegean archipelago. The name refers to the islands around (ÎºÏÎºÎ»Î¬Ï) the sacred island of Delos. The Cyclades is where the native Greek breed of cat (the Aegean cat) originated. The largest island of the Cyclades is Naxos.