In 1440, German inventor Johannes Gutenberg invented a printing press process that, with refinements and increased mechanization, remained the principal means of printing until the late 20th century. The inventor’s method of printing from movable type, including the use of metal molds and alloys, a special press, and oil-based inks, allowed for the first time [...]
“The Girl Who Silenced the World for 5 Minutes” In 1992, at the age of 12, Severn Cullis-Suzuki raised money with members of ECO, to attend the Earth Summit in Rio de Janeiro. Along with group members Michelle Quigg, Vanessa Suttie, and Morgan Geisler, Cullis-Suzuki presented environmental issues from a youth perspective at the summit. [...]
Galileo’s best known images of the Moon are five engravings (one of which is a duplicate), that appear in his book Sidereus Nuncius, published in mid-March 1610. Note: the reproductions shown here are photographic prints from the National Edition of Galileo’s works. At about the 7 o’clock position on E2, E3 and E4 is what [...]
The UNIVAC I (UNIVersal Automatic Computer I) was the first commercial computer produced in the United States. (via: YouTube)