GK
INVENTIONS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The light bulb reduced the crime rate in many urban areas.
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Thomas Edison also invented the phonograph, the motion picture, and the stock ticker.
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Americans gained control over light in homes and offices, independent of the time of day.
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The light bulb was first tested by Thomas Edison in 1879, and he patented the invention in 1880.
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Detailed explanation-1: -One of the most famous and prolific inventors of all time, Thomas Alva Edison exerted a tremendous influence on modern life, contributing inventions such as the incandescent light bulb, the phonograph, and the motion picture camera, as well as improving the telegraph and telephone.
Detailed explanation-2: -His best-known invention was the first commercially viable incandescent light bulb. But much of what afforded Edison’s light bulb its success was his brilliance in creating equally viable electrical systems-the widespread systems on which electricity is distributed throughout our communities.
Detailed explanation-3: -Edison created a battery for electric cars. Edison’s first patent was for a vote recorder. Thomas Edison saved a three-year-old boy from getting hit by a train. Thomas Edison suggested using the word “hello” as a telephone greeting. Nikola Tesla worked for Thomas Edison. More items •10-Oct-2021