100 Mind-Blowing Electrical Facts

Nikola Tesla hated pearls. The electrical engineer paved the way for current system generators and motors; the way electricity gets transmitted and converted to mechanical power is thanks to his inventions. But despite his patience with scientific experimentation, he had no tolerance for pearls. When his secretary wore pearl jewellery one day, he made her go home.

The electric chair was invented by a dentist. In more shocking fun facts (perhaps literally): Alfred Southwick was a dentist who conceptualized electrical execution when he heard of an intoxicated man who died from touching a live electric generator. Realizing the man’s quick death, Southwick concluded that electricity could be an alternative to hanging for executions. However, he first intended for electrocution to euthanize stray dogs.

Scientists have taught rats to drive. According to an experiment, rats can learn how to drive. Scientists made tiny cars with an aluminium floor and a “steering wheel” made out of three copper bars. When the rat stood on the car’s aluminium floor and touched the copper bars, it would start an electrical charge that moved the car. By the end of the experiment, they had taught the rats to steer the car in different directions by touching different copper bars. Their secret? Froot Loops. The scientists conditioned the rats to manoeuvre in different ways by rewarding them with cereal pieces.

Sharks use the electrical signals from their prey’s muscles to detect them.

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