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Sep 13, 1440
The printing press
Invented by Johannes Gutenberg. This machine remained the principal means of printing until the late 20th century. The method Gutenberg used in its printing press allowed the first time mass production of printed book could be done -
Sep 13, 1500
The Clock
In the 15th century the first portable, spring- driven clocks appeared in Germany. Several clock makers began using this technology around the same period so it would be very difficult to say who its inventor was. This first design led to the creation of many other type of clocks. -
First Tv
Created by Paul Gottileb Nipkow by sending images through wires with the help of a rotating metal disk -
Electrical Light
Invented by Humphry David when he was experimenting with electricity. He connected wires to the battery,that he also created, to a piece of carbon the reaction was the carbon started to glow, thus producing light -
The refrigerator
Various inventors contributed to the creation of the refrigerator. The first succesful one was the creation of John Gorrie, who constructed this unit to create a cooling atmosphere for his patients suffering from yellow fewer -
Phonograph
The first practical method of recording an playing back sound on a metal foil -
The lightbulb
Although believed by many, Thomas Edision was not the inventor of the lightbulb. Edison bought the patent of Henry Woodward and Matthew Evans since theirs wasnt very succesful -
Punching Card System
Created by Herman Hollerith to calculate census, it took 3 years for this device to be created. -
Penicillin
Sir Alexander Fleming was a young bacteriologist when an accidental discovery led to one of the great developments of modern medicine on this day in 1929. Having left a plate of staphylococcus bacteria uncovered, Fleming noticed that a mold that had fallen on the culture had killed many of the bacteria. He identified the mold as penicillium notatum, similar to the kind found on bread. On February 14, 1929, Fleming introduced his mold by-product called penicillin to cure bacterial infections -
Bluetooth
Adopted by manufacters who used it on their mobile phones, it was unveiled at 1999