inventions

In which decade was the first solid state integrated circuit demonstrated? A. 1950s B. 1960s C. 1970s D. 1980s

BUTTER STICKER TRANSPARENT TOASTER

BAIRD, JOHN LOGIE John Logie Baird (1888-1946) was a Scottish inventor and engineer who was a pioneer in the development of mechanical television. In 1924, Baird televised objects in outline. In 1925, he televised human faces. In 1926, Baird was the first person to televise pictures of objects...

1250 Magnifying glass Roger Bacon English 1450 Printing press Johann Gutenberg German 1504 Pocket watch Peter Henlein German 1590 Compound microscope Zacharias Janssen Dutch 1593 Water thermometer Galileo Italian 1608 Telescope Hans Lippershey Dutch 1625...