‘Discovery, Invention and Exploration’ Archives
Typewriter
Typewriter The idea behind the typewriter was to apply the concept of movable type developed by Johann Gutenberg in the invention of the printing press century to a machine for individual use. Descriptions of such mechanical writing machines date to the early eighteenth century. In 1714, a patent something like a typewriter was granted to a man [...]
Television
Television Earlier TV devices had been based on an 1884 invention called the scanning disk, patented by Paul Nipkow. Riddled with holes, the large disk spun in front of an object while a photoelectric cell recorded changes in light. Depending on the electricity transmitted by the photoelectric cell, an array of light bulbs would glow or remain [...]
Telephone
Telephone Probably no means of communication has revolutionized the daily lives of ordinary people more than the telephone. Simply described, it is a system which converts sound, specifically the human voice, to electrical impulses of various frequencies and then back to a tone that sounds like the original voice. In 1831, Englishman Michael [...]
Printing Press
Printing Press The printing press is a mechanical printing device for making copies of identical text on multiple sheets of paper. It was invented in Germany by the goldsmith Johannes Gutenberg in 1450. Printing methods based on Gutenberg's printing press spread rapidly throughout first Europe and then the rest of the world, replacing most [...]
Polar Exploration
Polar Exploration I INTRODUCTıON Polar Exploration, history of European and American attempts to reach the North Pole and the South Pole, and the exploration of the surrounding Arctic and Antarctic regions. In the 1400s Europeans set out to explore the world, launching the great Age of Exploration. Europeans eventually mapped most of the [...]
