According to a model described in the text, a neutron star has a radius of about 10 km. assume that the pulses occur once per rotation. according to einstein’s theory of relatively, nothing can move faster than the speed of light. check to make sure that this pulsar model does not violate relativity. calculate the rotation speed of the crab nebula pulsar at its equator, given its period of 0.033 s. (remember that distance equals velocity × time and that the circumference of a circle is given by 2πr).

it breaks and dirupture other materials and other sencews from the bottom

electromagnetic shielding is the practice of reducing the electromagnetic field in a space by blocking the field with barriers made of conductive or magnetic materials. shielding is typically applied to enclosures to isolate electrical devices from their surroundings, and to cables to isolate wires from the environment through which the cable runs. electromagnetic shielding that blocks radio frequency electromagnetic radiation is also known as rf shielding.

the shielding can reduce the coupling of radio waves, electromagnetic fields and electrostatic fields. a conductive enclosure used to block electrostatic fields is also known as a faraday cage. the amount of reduction depends very much upon the material used, its thickness, the size of the shielded volume and the frequency of the fields of interest and the size, shape and orientation of apertures in a shield to an incident electromagnetic

from wikipedia