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Early warning radar, air defence systems. Air traffic control systems, microwave oven. Walkie-talkie. 1930s. Canada (Donald Hings) [3] United States (Alfred J. Gross, Motorola SCR-300) Portable two-way radio communications system for military. Portable radio communications – business, public safety, marine, amateur radio, CB radio.
Timeline of United States inventions (1890–1945) Robert H. Goddard (1882–1945), the American physicist and inventor who built and launched the world's first liquid-propellant rocket on March 16, 1926. [1] Goddard held 214 patents for his inventions and pioneering innovations in liquid-propelled, guided, and multi-stage rockets.
History of military technology. The history of military technology, including the military funding of science, has had a powerful transformative effect on the practice and products of scientific research since the early 20th century. Particularly since World War I, advanced science-based technologies have been viewed as essential elements of a ...
Technology during World War I. The machine gun emerged as a decisive weapon during World War I. Picture: British Vickers machine gun crew on the Western Front. Technology during World War I (1914–1918) reflected a trend toward industrialism and the application of mass-production methods to weapons and to the technology of warfare in general.
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 1991), after the Fall of the Soviet Union.
1941 – June 22 – Operation Barbarossa, the 1941 German invasion of the Soviet Union, begins. Soviet nuclear research is subsequently delayed. 1941 – October – President Roosevelt receives MAUD report on the design and costs to develop a nuclear weapon. Roosevelt approves project to confirm MAUD's finding.
1886: Charles Martin Hall and independently Paul Héroult invent the Hall–Héroult process for economically producing aluminum in 1886. 1886: Karl Benz invents the first petrol or gasoline powered auto-mobile (car). [ 440 ] 1887: Carl Josef Bayer invents the Bayer process for the production of alumina.
Timeline of United States inventions (before 1890) Eli Whitney (1765–1825) is best known for inventing the cotton gin in October 1793 and patenting it on March 14, 1794; [1] a key invention of the Industrial Revolution that shaped the economy of the antebellum South. [2]