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. ...
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.
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?
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 ...