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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.
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
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.
1930: Subrahmanyan Chandrasekhar discovers his eponymous limit of the maximum mass of a white dwarf star; 1931: Kurt Gödel: incompleteness theorems prove formal axiomatic systems are incomplete; 1932: James Chadwick: Discovery of the neutron; 1932: Karl Guthe Jansky discovers the first astronomical radio source, Sagittarius A
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 ...
1900: Drude model by Paul Drude [449] 1900: Planck constant and Planck's law by Max Planck [450] 1900–1930: 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 ...
By the 1930s, the broadcast receiver had become a common household item, with standardized controls that anyone could use. [85] The invention of the transistor in 1947 again revolutionized radio technology, making truly portable receivers possible, beginning with transistor radios in the late 1950s. [86]
Worst industrial accident in American history. 1908 – Ford Model T appears on the market; 1908 – Root–Takahira Agreement; 1908 – Federal Bureau of Investigation established; 1908 – Aldrich–Vreeland Act; 1908 – U.S. presidential election: William Howard Taft elected president; James S. Sherman vice president.