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.
From 1776 until the present day, July 4th has been celebrated as the birth of American independence, with typical festivities ranging from fireworks, parades and concerts to more casual family gatherings and barbecues. Play video Declaration of Independence. Play video History of the Fourth of July.
Independence Day of Australia. Independence Day or National day essentially commemorates a very significant day in the history of a country's struggle in the attainment of its freedom. Australia Day is celebrated as Australia's official National Day on the 26 January.