Notable Inventions And Discoveries

Notable Inventions and Discoveries Date

Invention Or Discovery

Inventor Or Discoverer

Nationality

1919

Mass spectrograph

1922-26 Sound motion pictures 1922 Insulin 1923 Autogiro 1923 Television iconoscope 1924 Quick-frozen food 1925 Television image dissector tube 1926 Aerosol can 1926

Liquid-fuel rocket

1928 1930

Penicillin Bathysphere

1930

Freon (low-boiling fluorine compounds)

1930

Modern gas-turbine engine

1930

Neoprene (synthetic rubber)

1931

1932

Cyclotron Differential analyzer (analogue computer) Phase contrast microscope

1932

Van de Graaff generator

1933 1935 1935

Frequency modulation (FM) Buna (synthetic rubber) Radiolocator (radar)

1931

Sir Francis William Aston Arthur Jeffrey Dempster T.W. Case Sir Frederick Grant Banting Juan de la Cierva Vladimir Kosma Zworykin Clarence Birdseye Philo Taylor Farnsworth Erik Rotheim Robert Hutchings Goddard

British American American Canadian Spanish American American American Norwegian

Sir Alexander Fleming (Charles) William Beebe Thomas Midgley and coworkers Sir Frank Whittle Father Julius Arthur Nieuwland and Wallace Hume Carothers Ernest Orlando Lawrence

British American

Vannevar Bush

American Dutch

American

American British American American

1935 1935 1935 1936 1937 1938 1939 1939 1940 1941 1942 1942

Electron microscope Sulfanllamide Nylon Twin-rotor helicopter3 Snowmobile Ballpoint pen DDT Helicopter4 Betatron Turbojet aircraft engine Guided missile Nuclear reactor

Frits Zernike Robert Jemison Van de Graaff Edwin Howard Armstrong German scientists Sir Robert Watson-Watt Edward Calvin Kendall Tadeus Reichstein German scientists Gerhard Domagk Wallace Hume Carothers Heinrich Focke Armand Bombardier Georg and Ladislao Biro Paul Müller Igor Sikorsky Donald William Kerst Sir Frank Whittle Wernher von Braun Enrico Fermi

1942

Xerography

Chester Carlson

American German British American Swiss German German American German Canadian Hungarian Swiss American American British German American American

1944 1945 1945

V-2 (rocket-propelled bomb) Atomic bomb Streptomycin

German scientists U.S. government scientists Selman A. Waksman

German American American

1935

Cortisone

American