Is there any way invented so far to protect something from electromagnetic waves and fields?

Question

I know about just one way that by using a conductive cover, and making the current in the cover, we can isolate inside the cover.
But I think in this way, we should access to the earth, but in the case we don't access directly to the earth (or access is throgh a high resistance material), is there any alternative way? (maybe not using conductive material?)

Answer 1

Yes, it is called a Faraday cage and it works to protect against electric fields. I don't know what has been done for magnetic fields; since magnetic fields are usually so weak, it is not necessary to have protection--but there are always exceptions.

Answer 2

Not really, because electromagnetic waves do not exist.
.Is is just something that was concocted by science to explain light radiation.
Radiation is neither magnetic nor electric. No wonder they did not need a medium to propagate an electromagnetic wave. you dont need a medium to propagated a wave that does not exist.

As it makes comon sense that the definition of a wave IS a disturbance of a matter structure(called a medium). It takes matter(a medium) to transfer power and energy.

Example you can transfer energy back and forth with a vibrating rope. With out the rope there is no wave or energy transfer.
There are numerous other experiments which can prove energy transfer thru medium disturbance ,thus
causing a wave..

In orde to explain Fields it is neccessary to explain Gravity which takes many cofiguration. Einstein had a tough time trying to understand it. And to give you an answer on
field is beyond the space allotted for this inquiry.

Answer 3

find the frequency wave of the elctromagnetic field/wave and produce an electromagnetic wave/field that has a frequency that matches of that. principle of like attracts like and opposites attract. this idea was also inspired by star trek force fields and tractor beams.

Answer 4

Any shielded box or enclosure