Alternating Current. Nikola Tesla invented the alternating-current generator; in 1893 Westinghouse used AC to light the World's Columbian Exposition in Chicago.
More Science Trivia
Serendipity. A fortunate discovery made in the process of looking for something unrelated is "serendipity".
Chlorofluorocarbons. "Freon" is a registered trademark for DuPont's brand of chlorofluorocarbons.
330,000 Times. The earth's magnetic field has boundaries, but doesn't fade into space.
Saturn. One day on Saturn is equivalent to 10 1/2 hours on Earth.
Doppler Radar. Doppler radar uses the Doppler Effect to gather velocity data about objects at a distance.
2 Feet. An anteater's long tongue is about 1/2 inch wide and covered with a sticky saliva.