One fact about electricity is that it travels at the speed of light, which measures approximately 186,000 miles per second. Despite popular belief, Benjamin Franklin did not discover electricity. He simply proved lightning is a form of electricity and invented the lightning rod.
Scientists measure electricity in volts. A bolt of lightning, while lasting less than a second, can produce up to 3 million volts, travel up to 130,000 miles per hour and measure more than 54,000 degrees Fahrenheit.
Thomas Edison invented most of the products needed to run electricity in a home, including switches, fuses and sockets. He also owned the first power plant, which was located in New York City and opened in 1882. Though credited with the invention of the light bulb, Edison did not invent it. He simply improved the light bulb by determining the best filament.
Electricity is the flow of electrons, and there are two types of electrical currents, AC and DC. In a direct current, or DC, electrons flow in one direction, but in an alternating current, or AC, the electrons flow in two directions. Most homes and appliances run on AC current because it is safer than DC and can be used over longer distances.
Electricity going through the heart contracts the muscles and controls the way the heart beats. An electrocardiogram, or EKG, measures the electricity flowing through the heart.