Adding Machine, 1642. Inventor: Blaise
Pascal (France) (1623-62). Earliest commercial machine invented by
William Burroughs (USA) in St. Louis, Missouri in 1885.
Addressograph, 1893. Inventor: J.S. Duncan (USA). Manufactured in Chicago, Illinois.
Aeroplane, 1903. Inventors: Orville Wright (1871-1948) and Wilbur Wright (1867-1912), (USA) Kitty Hawk, North Carolina.
Airship (non-rigid), 1852. Inventor: Henri Giffard (France) (1825-82).
Steam-powered propeller flew over Paris (1852).
Airship (rigid), 1900. Inventor: Graf Ferdinand von Zeppelin (Germany) (1838-1917). Bodensee.
Antiseptic, 1867. Inventor : Dr. Joseph lister (England).
Arc Lamp, 1879. Inventor: C.F. Brush (USA) (1849-1929). Cleveland, Ohio.
Argon, 1894. Inventor: Sir William Ramsay and Baron Ray Leigh (Great Britain).
Aspirin, 1899. Inventor : Dr. Felix Hoffman, Germany.
Atom (Nuclear Model), 1911. Inventor: Ernest Rutherford, (1871- 1937) England.
Atom Bomb, 1945. Inventor : Julius Robert Oppenheimer (USA) (1904- 1967).
Atomic Theory (ancient) :
Leucippus Democritus (Greece) (500 BC).
Atomic Theory (modem) : John Dalton (England) (1808).
Autogiro, 1923. Inventor: Juan de la Cierva (Spain) (1896-1963). Horizontal unpowered rotor.
Addressograph, 1893. Inventor: J.S. Duncan (USA). Manufactured in Chicago, Illinois.
Aeroplane, 1903. Inventors: Orville Wright (1871-1948) and Wilbur Wright (1867-1912), (USA) Kitty Hawk, North Carolina.
Airship (non-rigid), 1852. Inventor: Henri Giffard (France) (1825-82).
Steam-powered propeller flew over Paris (1852).
Airship (rigid), 1900. Inventor: Graf Ferdinand von Zeppelin (Germany) (1838-1917). Bodensee.
Antiseptic, 1867. Inventor : Dr. Joseph lister (England).
Arc Lamp, 1879. Inventor: C.F. Brush (USA) (1849-1929). Cleveland, Ohio.
Argon, 1894. Inventor: Sir William Ramsay and Baron Ray Leigh (Great Britain).
Aspirin, 1899. Inventor : Dr. Felix Hoffman, Germany.
Atom (Nuclear Model), 1911. Inventor: Ernest Rutherford, (1871- 1937) England.
Atom Bomb, 1945. Inventor : Julius Robert Oppenheimer (USA) (1904- 1967).
Atomic Theory (ancient) :
Leucippus Democritus (Greece) (500 BC).
Atomic Theory (modem) : John Dalton (England) (1808).
Autogiro, 1923. Inventor: Juan de la Cierva (Spain) (1896-1963). Horizontal unpowered rotor.
Automobile (steam), c. 1769. Inventor:
Nicolas Cugnot (France) (1725- 1804). Three-wheeled military tractor.
Oldest surviving is Italian Bordino (1854) in Turin.
Automobile (gasoline), 1855. Inventor:
Karl Benz (Germany) (1844- 1929). Earliest model by Father Ferdinand
Verbiest (d. 1687) c. 1665 in China. Earliest internal combustion
automobile built (1862-63) by Jean Joseph Etienne Lenior (1822-1900)
(France). First run by Benz Motorwagon, Manneheim in November or
December 1885. Patented in January 29,1886. First powered handcart with
internal combustion engine was by Siegfried Marcus (Austria) (c. 1864).
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