The inventions tag has no wiki summary.
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1answer
362 views
How much faster were the printing presses than hand writing?
How many times faster were the printing presses, which gave Europe an advantage over other continents in term of access to knowledge, compared to copying of books by hand?
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0answers
25 views
When was the electric iron introduced to the state of Georgia?
I am aware that the electric iron was invented in 1882 by Henry W. Seely, but I would like to find out when rich and middle-class Georgians started using it.
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0answers
38 views
Was there a race to patent the use of Freon as a home refrigerator coolant?
Thomas Midgely, Jr.'s hands were in two of the most detrimental scientific breakthroughs of the 20th century: the proliferation of leaded gasoline and the use of Freon (a chlorofluorocarbon) as a ...
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86 views
How did China go from “inventing” to reverse-engineering? [closed]
In the past millenium, China was known for inventions such as paper, block type, gunpowder and others.
Nowadays, we see China is copying everything. Electronic calculators to microprocessors. ...
