Publisher's Synopsis
In physics, the state of rest is somehow considered the same as the state of being in uniform motion. If an observer is moving with you at the same speed, you are at rest for that observer. So maybe a charge moving in uniform motion is not enough. We all know it takes an accelerated charge to create an electric field all around it.
This field creates a magnetic field of its own and then comes an electric field of this magnetic one and on and on it goes... we get a electromagnetic wave. These field waves are destroyed and born and forward this EM wave goes. Einstein's understandings comprehend that there is no magnetic field in the first place. You just have to see from a different reference frame or be a different observer.
But what are these individual electric fields made of? What is this spherical ball of energy all around an accelerated charge made up of? This space has energy, with which it can exert a force on another charged or charged object inside this space. So how this space has changed? What is this space made up of? What is this energy? If you are surrounded by electric appliances, which you are, you are swimming in electromagnetic waves.
So they say, space is not actually empty... and of course, also is under the influence of other forces in nature.
