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Download as PDF; Printable version ... The timeline of historic inventions is a chronological list of particularly important or ... 3.7 kya: Star chart in France, [71 ...
The timeline begins at the Bronze Age, as it is difficult to give even estimates for the timing of events prior to this, such as of the discovery of counting, natural numbers and arithmetic. To avoid overlap with timeline of historic inventions , the timeline does not list examples of documentation for manufactured substances and devices unless ...
1900 Fly swatter. A fly swatter is a hand-held device for swatting and killing flies and other insects. The first modern fly-destruction device was invented in 1900 by Robert R. Montgomery, an entrepreneur based in Decatur, Illinois. [75] On January 9, 1900, Montgomery was issued U.S. patent #640,790 for the "Fly-Killer". [76] 1900 Thumbtack
The following articles cover the timeline of United States inventions: Timeline of United States inventions (before 1890), before the turn of the century; Timeline of United States inventions (1890–1945), before World War II; Timeline of United States inventions (1946–1991), during the Cold War; Timeline of United States inventions (after ...
Print/export Download as PDF; ... Timeline of cosmological theories; ... The year 1900 in science and technology involved some significant events, listed below.
Print/export Download as PDF; ... This section of the timeline of United States history concern events from 1900 to 1929. U.S. territorial extent in 1900.
Brief History of Electronics Timeline ; Date Invention/Discovery Inventor(s) 1900: Old quantum theory: Planck 1905: Theory of relativity: Einstein 1918: Atomic transmutation: Rutherford 1932: Neutron: Chadwick 1932: Particle accelerator: Cockcroft and Walton 1935: Scanning electron microscope: Knoll 1937: Xerography: Carlson 1937: Oscilloscope ...
Download as PDF; Printable version; In other projects ... This is a timeline of the 20th century. 1900s ... Invention of the optical disc and the cassette tape.