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Tesla vs. Marconi: Who Invented Radio

Nikola Tesla gave a public demonstration of the wireless transmission of energy on March 1, 1893. He had created an induction coil to transmit and receive radio signals. Years later while he was preparing to transmit signals at a distance, so was another inventor: Guglielmo Marconi. Marconi transmitted the first transatlantic telegraph but Tesla had secured two radio patents in America. It became a story of fierce competition between two brilliant minds and a debate over who invented radio.

Shirley Temple Becomes a Star

On April 19, 1934, a movie premiere turned a little girl into Hollywood’s darling. “Stand ... more

First Handheld Calculator

The first scientific pocket calculator hit the market in 1972. It was the HP 35. It got its name ... more

Roosevelt's Nobel Peace Prize

The first American to win a Nobel Peace Prize was President Theodore Roosevelt. The prize, awarded ... more
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