A visco-elastic material is one with both the properties of a liquid and the properties of an elastic solid. The combination of these two types of properties is excellent when it comes to absorbing or spreading energy because these two types of materials deal with energy in different ways.
Electric and magnetic fields (EMF) are invisible lines of force that surround any electrical device. Electrical wiring, electrical equipment and power lines all produce electric and magnetic fields. Electrical fields and magnetic fields can be characterized by their wavelength, frequency and amplitude (strength).
The energy needed to push the electrons from one point to another point is called voltage or volts. The total amount of electrons flowing through a wire is called current and is measured in amperes or amps. It is similar to the amount of water flowing through a hose. Bigger hoses can move more water, and bigger wires can move more electrons. The more current (amps), the more force, just like the hose.