2006-08-28 08:48:52 · 3 answers · asked by goring 6 in Science & Mathematics ➔ Physics
Polarization really has meaning only for a changing electromagnetic field. A vertical antenna (like a flagpole) generates a vertically-polarized electromagnetic wave, where the electric field is primarily vertical and the magnetic field is primarily horizontal. Maxwell's equations let you calculate how these fields interact and propagate.
If you build a curtain of closely-spaced vertical wires, a vertically polarized EM field won't penetrate it, but a horizontal one will. You're not really changing the polarization of the EM wave, you're just blocking one and allowing the other to pass.
2006-08-28 19:06:50 · answer #1 · answered by Frank N 7 · 0⤊ 0⤋
By finding magnetic monopoles.
Good luck.
2006-08-28 15:51:29 · answer #2 · answered by Michael M 1 · 0⤊ 0⤋
How can it not
2006-08-28 15:54:09 · answer #3 · answered by Effie 2 · 0⤊ 0⤋