Lightning, the visible discharge of electricity that occurs when a region of a cloud acquires an excess electrical charge, either positive or negative, sufficient to break down the resistance of air. It can occur within the cloud, between clouds, between
He discovered a lot of facts about electricity(电). He proved that lightning (闪电) is a kind of electricity. He did this by flying a kite in a thunderstorm. Then he invented the lightning rod (避雷针). This helped save many people's lives. Some other things that he invented were ...
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Plant breeding, or the directed evolution of a plant species to fit human needs, is as old as species domestication. While pure line selection had been practiced for (Lupton1987; Shaltouki Rizi and Mohammadi2023) much of the 19th century, modern plant breeding, founded on the principles of ...
TheEmpire State Building, in New York City The Empire State Building TheEmpire State Buildingis designed to be a lightning rod. In fact, it is struck by lightning about 100 times each year! Citicorp Center New York's Citicorp Center (915 feet tall, 59 stories, built in 1977) was the fi...
Perkins devoted the rest of his life to the cause, becoming a lightning rod for controversy. Charles Perkins (right) with Aboriginal residents of Moree, New South Wales Charles Perkins (right) with Aboriginal residents of Moree, New South Wales, 1965.(more) Born into a mixed-race Aboriginal...
that he’d once climbed into bed with his mother and fondled her breasts, their genitals pressed against each other. While it’s unknown if these “confessions” were true, they were certainly sensational. Add to that Unruh’s sensational crime, and his case became a lightning rod for ...
By 1748, the 42-year-old was rich enough to hang up his printer’s apron and become a “gentleman of leisure.” Franklin’s retirement allowed him to spend his remaining 42 years studying science and devising inventions such as the lightning rod, bifocal glasses and a more efficient heatin...
he conducted experiments that contributed to the understanding of electricity, and invented the lightning rod, which protected buildings from fires caused by lightning. In 1752, he conducted hisfamous kite experimentand demonstrated that lightning is electricity. Franklin also coined a number of electrici...
Mary Tudor was the first queen regnant of England, reigning from 1553 until her death in 1558. She is best known for her religious persecutions of Protestants and the executions of over 300 subjects.