2006-11-02 09:53:19 · 5 answers · asked by krymarbet 1 in Science & Mathematics ➔ Engineering
For very long wavelengths (up to the visible spectrum), any thin layer will stop the radiation (consider a blindfold). Even clothing will stop most.
The one used most commonly for radio frequency waves is called a Faraday Cage. It is basically a metal screen box which has been grounded.
Ultraviolet rays can be stopped with a sun-screen.
If the wavelengths are very short (x-rays), then a lead shield is more suitable. X-ray technicians also have aprons and throws which will stop most, if not all, x-rays.
Some ultra-short wavelength EMF are almost impossible to stop.
2006-11-02 12:18:54 · answer #1 · answered by Richard 7 · 66⤊ 0⤋
Any grounded metal will absorb EM radiation. A layer of sheet metal wired to a grounding rod, or household plumbing, or the ground wire of household electrical wiring will block EM.
2006-11-02 18:03:58 · answer #2 · answered by dinotheorist 3 · 1⤊ 0⤋
A lead hat and face shield should protect your head, not sure about the rest of your body
2006-11-03 00:08:34 · answer #3 · answered by Anonymous · 0⤊ 1⤋
Also, wired grass for windows and grounded screen inside walls is effective
2006-11-03 17:57:44 · answer #4 · answered by itsbob1 5 · 0⤊ 0⤋
I wear a tin foil hat.
2006-11-02 22:46:49 · answer #5 · answered by Roadkill 6 · 0⤊ 1⤋