Electromagnetism Casts a Large Net

Most of us would not associate the cause for an electrical fire, the heat and radiation from a thermal nuclear explosion, the pulsing energy generated from your cell phone, or the warmth created from a home appliance, with electromagnetism.

Electromagnetism has been with us since the Big Bang. It is considered one of the four natural forces of the universe, along with gravitational force, strong nuclear force (which holds atoms together), and weak nuclear force (radioactive decay).