It was examined in 1963 and was estimated to weigh more than two tonnes (4,409 lb). A seven metre long wasps nest has reportedly been discovered in an abandoned house by police officers in San Sebastian de La Gomera on the island of Tenerife after a series of calls from concerned neighbours.
battery-a device that produces electricity; may have several primary or secondary cells arranged in parallel or series. electric battery. A battery-the battery used to heat the filaments of a vacuum tube.
Batteries are used as energy sources in electrical circuits. Usually, a battery provides a constant potential difference (voltage) between two ends and supplies a direct current (DC). The potential difference provided by a battery is known as its âelectromotive forceâ and measured in Volts (V).