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The piano first known as the pianoforte evolved from the harpsichord around 1700 to 1720, by Italian inventor Bartolomeo Cristofor. Harpsichord manufacturers had been determined to produce an instrument with a better dynamic response than the harpsichord.
Chew Gum was invented by Thomas Adams in 1870. At that time Adams tried to make toys, masks, and rain boots out of chicle, but every experiment failed. Sitting in his workshop one day,tired and discouraged, he popped a piece of surplus stock into his mouth. In 1870, he opened the world’s first chewing gum factory making Adams New York No. 1. He was born in 1818 and died in 1905
Invention of Zipper by Gideon Sundback, in 1913. The design used today, based on interlocking teeth, was invented by an employee of Whitcomb Judson's, Swedish born scientist Gideon Sundback. After that more improvements patented in 1917 as the "Separable Fastener". Only after Gideon Sundbach, had remodeled Judson's fastener into a more streamlined and reliable form, was the fastener a success.
Yale Lock was invented by Linus Yale Jr. in 1860. He was born in April 4, 1821 and died in Dec 25 1968. Yale's lock used a flat key with serrated edges like the ones we still use today. Yale lock is based on a mechanism first employed by the ancient Egyptians over 4000 years ago.
The first hair dryer was the vacuum cleaner! In early models of hair dryer, the front of a vacuum cleaner sucked air in, the back blew air out, and the hose could be attached to either end.
The first hair dryer was invented in 1920 but the size of the hair dryer was too large and heavy. In 1951 was the first really workable dryer made. The device consisted of a hand-held dryer connected to a pink plastic bonnet fitted over the woman’s head.
