Who Invented the Telephone?
Who Invented the Telephone? Credit for the invention of the electric telephone is frequently disputed, and new controversies over the issue have arisen from...
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Who Made Steel First?
Sir Henry Bessemer (1813-1898) of England invented the first process for mass-producing steel inexpensively. An American, William Kelly, had held a patent for ‘a system...
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How Did Ancient Civilizations Record Time?
How Did Ancient Civilizations Record Time? After the Sumerians, the Egyptians were the next to formally divide their day into parts something like hours. Slender,...
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Did Thomas Edison Really Invent the Light Bulb?
Did Thomas Edison Really Invent the Light Bulb? Thomas Edison didn’t invent the light bulb, but rather, he improved upon a fifty-year-old idea, the famous American...
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Who Invented Photography?
Who Invented Photography? In the mid-1820’s, Nicéphore Niépce succeeded, but several days of exposure in the camera were required and the earliest results were...
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