41.   Spacecraft use electricity, while they are in flight, to provide power for computers and other electrical equipment.

42.   The biggest difference between alternator and generator systems is how the car uses the new electricity they produce.

43.   The Amish do not drive cars, use electricity from public utilities, accept Social Security or Medicare benefits, or go to war.

44.   The company has just won approval from regulators to start a program that lets people pay less when they use electricity during low-demand times.

45.   The compressor machines that do use electricity will be backed up by diesel generators.

46.   The fact that people are not using the electricity much does not mean there has been no enthusiasm for it.

47.   The gear includes a water heater-sized Russian device that uses electricity to generate breathing oxygen from urine and other wastewater.

48.   The Elektron uses electricity to extract oxygen from wastewater generated aboard the station.

49.   The hot weather is increasing demand for air conditioning and the electricity used to power it, leading utilities to burn more natural gas than planned.

50.   The MFC does not produce enough power to move it, so instead the electricity is used to charge its batteries.