The fact that current carrying loops experience a net torque in a magnetic field is the principle behind the electric motor, where the electrical energy involved in establishing a current is converted into the mechanical energy of rotating a shaft.
Independence Day in the United States. Independence Day is annually celebrated on July 4 and is often known as the Fourth of July. It is the anniversary of the publication of the declaration of independence from Great Britain in 1776. Patriotic displays and family events are organized throughout the United States.
And although the signing of the Declaration was not completed until August, the 4th of July has been accepted as the official anniversary of United States independence. The first Independence Day celebration took place the following year â July 4 1777. By the early 1800s the traditions of parades, picnics, and fireworks were established as the way to celebrate Americaâs birthday.