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  2. Timeline of historic inventions - Wikipedia

    en.wikipedia.org/.../Timeline_of_historic_inventions

    1900: The first Zeppelin is designed by Theodor Kober. 1901: The first motorized cleaner using suction, a powered "vacuum cleaner", is patented independently by Hubert Cecil Booth and David T. Kenney. [455] 1903: The first successful gas turbine is invented by Ægidius Elling. 1903: Édouard Bénédictus invents laminated glass.

  3. Timeline of United States inventions (1890–1945) - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_United_States...

    Ruth Wakefield of Whitman, Massachusetts, invented chocolate chips and chocolate chip cookies in 1930. Her new cookie invention was called the "Toll House Cookie" which used broken-up bars of semi-sweet chocolate. [236] 1930 Thermistor. A thermistor is a type of resistor with electrical resistance inversely proportional to its temperature.

  4. Timeline of United States inventions - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_United_States...

    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

  5. List of German inventions and discoveries - Wikipedia

    en.wikipedia.org/wiki/List_of_German_inventions...

    1900: Drude model by Paul Drude [449] 1900: Planck constant and Planck's law by Max Planck [450] 19001930: Quantum mechanics by i.a. Max Planck and Werner Heisenberg [451] 1901: Modern pyrometer by Ludwig Holborn and Ferdinand Kurlbaum [452] 1904: Boundary layer theory by Ludwig Prandtl [453] 1904: First radar system by Christian Hülsmeyer ...

  6. Timeline of scientific discoveries - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_scientific...

    12 1900–1949. 13 1950–1999. 14 21st century. ... To avoid overlap with timeline of historic inventions, ... 1930: Subrahmanyan ...

  7. Timeline of electrical and electronic engineering - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_electrical_and...

    It was not until 1930, he is called a " telescreen sold "at a price of 20 pounds. 1927 The first fully electronic music boxes ("Jukeboxes") used in the USA on the market. German Grammophon on sale due to a license agreement with the Brunswick-Balke-Collender Company. Its first fully electronic turntables.

  8. List of British innovations and discoveries - Wikipedia

    en.wikipedia.org/wiki/List_of_British...

    Engineers during World War Two test a model of a Halifax bomber in a wind tunnel, an invention that dates back to 1871. The following is a list and timeline of innovations as well as inventions and discoveries that involved British people or the United Kingdom including predecessor states in the history of the formation of the United Kingdom ...

  9. Timeline of the history of the United States (1900–1929)

    en.wikipedia.org/wiki/Timeline_of_the_history_of...

    This section of the timeline of United States history concern events from 1900 to 1929. U.S. territorial extent in 1900. 1900s Presidency of William McKinley ...