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Successive improvements in battery technology facilitated major electrical advances, from early scientific studies to the rise of telegraphs and telephones, eventually leading to portable computers, mobile phones, electric cars, and many other electrical devices. Students and engineers developed several commercially important types of battery.
By 1910 he developed this into the first real tube amplifier, by creating a triode. His invention of the triode is almost simultaneously created by the American Lee de Forest. Max Dieckmann and Gustav Glage use the Braun tube for playback of 20-line black-and-white images. The first jukebox with records comes on the market.
This page aims to list inventions and discoveries in which women played a major role. Objects List Object 1 - "Almond Water" Object 2 - “Level Keys” (Trimmed; Open for Rewrite) Object 3 - "Smiler Repellent" In revision, please wait for this file to update Object 4 - "Deuclidators" Object 5 - "Candy" Object 6 - "The Mirror" Object 7 - "Memory Jar" Object 8 - "Lamps" Object 9 - "Dumb Gum ...
On International Women’s Day, here’s a look at some of the most important inventions created by women
Born in Raleigh, North Carolina, and later based in New York City, Henry was a pioneering figure who held 49 patents and developed over 110 inventions, significantly advancing technology while breaking gender barriers in her field. Her inventions include a bobbin-free sewing machine and a vacuum ice cream freezer.
2008: The launch of Tesla Roadster- the first highway legal, serial production, all-electric car to use lithium-ion battery cells, and the first production all-electric car to travel more than 244 miles (393 km) per charge- ushered a new era in the history of Li-ion batteries, which is signified as inflection points in the plots "The log number ...
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In the US, in 1954, only 1.5% of patents named a woman, compared with 10.9% in 2002. [1] Women's inventions have historically been concentrated in some areas, such as chemistry and education, and rare in others, such as physics, and electrical and mechanical engineering. [1]