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Question: In 1879, Edison successfully tested the incandescent light. What did he use for a filament?
Incorrect Answer
Correct Answer Edison made the filament for the light bulb from burned sewing thread, which produced a light that wasn't as bight as the carbon arc light. Later Edison began to use bamboo filaments.
Question: In 1876, Edison built his famous laboratory in which U.S. state?
Incorrect Answer
Correct Answer Edison built his famous laboratory in Menlo Park, This was the first ladoratory built for Edison. This is where he did his research on the telephone, phonograph and other great inventions.
Question: At what age did Edison become a telegraph operator?
Incorrect Answer
Correct Answer Edison become a telegraph operator because he saved a telegraph operator's son from the path of a railroad car. As a reward, the operator gave him free telegraph lessons - which started Edison on his way of becoming one of the greatest men in history.
Question: Which one of these inventions did Edison not discover or help improve?
Incorrect Answer
Correct Answer After making improvements to the telegraph, Edison started research on a "speaking telegraph" or what became known as the telephone. He was not the only one who experimented with this device; Edison improved the telephone by making it easier to hear the person on the other end.
Thomas invented the phonograph in 1877. The phonograph was a device used to record and play back messages sent over the telegraph and telephone.
In 1878, Edison began important research on electric lighting. He saw a demonstration of a carbon arc light that was really bright. So, Edison started to work an incandescent light, which would be less bright, for everyday use. In 1879, Edison tested a carbon filament made from burned sewing thread and it worked.
Question: How many years was Newton the president of the Royal Society?
Incorrect Answer
Correct Answer In the seventh year of Newton's Trinity fellowship, he was expected to be ordained into the Anglican church or resign his professorship. On Feb. 9, 1675, Newton went to London and petitioned King Charles II for a dispensation. While in London, Newton attended his first meeting of the Royal Society and was admitted as a member. He became president of the Royal Society in 1703 and served until his death on Mar. 27, 1727. On April 27,1675, the king granted Newton's petition, and the Lucasian professorship was no longer tied to the taking of holy orders.