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Skyscrapers Inquiry Unit
Patent, by African American inventor Alexander Miles, for new and useful improvements in elevators. The patent relates to mechanisms for closing the openings to the shafts of passenger and freight ele…
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Skyscrapers Inquiry Unit
Article that highlights the history and development of the electric elevator. Visit Source Download PDF…
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Inquiry Unit
When was the last time you lived without electric lights? Maybe a thunderstorm, hurricane, or blizzard caused a power outage in your neighborhood. Maybe you live in a village without electric lights. …
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Electric Lighting Inquiry Unit
An illustration of testing the first incandescent lamp in Edison's lab. Download PDF Visit Source…
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Electric Lighting Inquiry Unit
Images of old oil lamps from 1840 and 1840. Whale oil lamp, c. 1840. Mrs. Sauer putting oil in lamp, Cavalier County, N.D, Oct. 1940. Download PDF Visit Source 1 Visit Source 2 …
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Electric Lighting Inquiry Unit
Photograph of an electric lamp being illuminated by passing a current through the body of Mark Twain. Download PDF Visit Source 1 Visit Source 2…
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Electric Lighting Inquiry Unit
Promotional literature for the Westinghouse Electric Co. Download PDF Visit Source…
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Electric Lighting Inquiry Unit
"Lewis Howard Latimer (1848-1928)...attended only grade school, and the remainder of his education was self-taught...He had a fabulous appetite for reading, drawing, and learning in general. In 1880, …
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Electric Lighting Inquiry Unit
Hertha Marks Ayrton was a British engineer, mathematician, physicist and inventor. She was the first woman elected member of The Institution of Electrical Engineers (London) 1899, the first woman to r…
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Electric Lighting Inquiry Unit
Thomas A. Edison's patent for "Fitting and Fixture for Electric Lamps". Patented on 18 October 1881. Download PDF Visit Source…
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