- #1
aster79
- 4
- 0
I’ve heard that the reason radio telescope dishes can be made out of wire mesh is because, so long as the size of the holes is less than (I believe) 1/10 the wavelength of the radio wave, the wave be reflected (it will see the dish as being solid). I was wondering what the physical reason was that this should be true, as I haven’t seemed to have found an adequate answer for this anywhere.