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Eugene Turpin, French chemist

Picric acid crystals

Charles Edward Munroe, US chemist

Joseph Swan

Joseph Swan

Barbara Askins, US chemist

Alfred Nobel, Swedish chemist

Alfred Nobel, Swedish chemist

Wanda G. Bradshaw, American chemist

Frederick Augustus Abel, English chemist

Frederick Augustus Abel, English chemist

Jerome Alexander, US chemist

Ernst Beckmann, German chemist

Theodore William Richards, US chemist

Charles Gnadinger, US chemist

John Fleming, British engineer

Edouard Branly, French physicist

Yves Chauvin, French chemist

Yves Chauvin, French chemist

William Henry Perkin, British chemist

High-voltage generator being grounded

British munitions factory, First World War

Edward Acheson, US chemist

Edward Bartow, US chemist

Charles Baskerville, US chemist

Charles Chandler, US chemist.

Carleton Ellis, US chemist

Portrait Of Alfred Nobel

Adolf von Baeyer, German chemist

Adolf von Baeyer, German chemist

Victor Bloede, German-US chemist

Cressy Morrison, US chemist

Frederick Belding Power, American pharmaceutical chemist

James Kendall, British chemist

Arthur Linz, US chemist

Leo Baekeland, Belgian-US chemist

Leo Baekeland, Belgian-US chemist

Leo Baekeland, Belgian-US chemist

Rudolf Christian Bottger, German inorganic chemist

Linn Bradley, US chemical engineer

Jacob Hasslacher, German-US industrialist

Theodore William Richards, US chemist

Maud Menten, Canadian biochemist

Transmission electron microscopy, 1950s

Transmission electron microscopy, 1960s

Nikola Tesla, Serb-US physicist

Lee De Forest, US inventor

Hugo Schweitzer, German-US chemist

Fritz Haber, German chemist

Fritz Haber, German chemist

Lise Meitner, German chemist

Kathleen Lonsdale, British chemist

Mildred Rebstock, US chemist

Stephanie Kwolek, US chemist

Leslie Balassa, Hungarian-US chemist

High-voltage generator being grounded

Margaret Dorothy Foster, US chemist

Mary Lura Sherrill, US chemist

Herman Mark, Austrian-US chemist

Peter Debye, Dutch physical chemist

Bertram Boltwood, US radiochemist

William Cogswell, US industrialist

Austrian chemist Alfons Klemenc and colleague, 1927

Louis Daguerre, French chemist

William Hyde Wollaston, British chemist

Wallace Carothers, US chemist

Francis E. Lloyd and Helen Davis, botanist and chemist

Kary Mullis, US biochemist

Emma Perry Carr, American spectroscopist

Bennett Epstein, US chemical engineer

Leslie Jenness, US chemical engineer

Guglielmo Marconi, Italian physicist

Guglielmo Marconi, Italian physicist

Guglielmo Marconi, Italian physicist

Philo Farnsworth, US inventor

Operation Redwing Cherokee, Bikini Atoll, 1956

James Curtis Booth, American chemist

Thomas Edison, US inventor

Walter Brattain, US physicist

Edward Mellanby, British biochemist

Henry Parkhurst, US astronomer

Justus von Liebig (1803-73), German Chemist, Considered the Founder of Organic Chemistry, Portrait

Justus von Liebig (1803-73), German Chemist, Considered the Founder of Organic Chemistry, Portrait

King Camp Gillette, US inventor

Tesla with the boxing brothers Zivic, 1940s

Thomas Alva Edison (1847-1931), American Inventor, half-length seated Portrait, Louis Bachrach, Bachrach Studios, 1922

Thomas Alva Edison (1847-1931), American Inventor, three-quarter length Portrait, Unidentified Artist, 1906

Thomas Alva Edison (1847-1931), American Inventor, half-length Portrait, Louis Bachrach, Bachrach Studios, 1922

Thomas Alva Edison (1847-1931), American Inventor, head and shoulders Portrait, Detroit Publishing Company, 1920

Thomas Alva Edison (1847-1931), American Inventor, three-quarter length Portrait, National Photo Company, 1926

Frederick Abel, British chemist

Henry Bessemer, British metallurgist

Thomas Graham, Scottish chemist

Thomas Graham, Scottish chemist

Clyde Tombaugh, US astronomer

Charles Martin Hall, US chemist

Charles Herty, US chemist

Charles Herty, US chemist

Mary Engle Pennington, US chemist

Peter Debye, Dutch chemical physicist

Peter Debye, Dutch chemical physicist

Researcher using a microscope, 20th century

E-Cat cold fusion research

Frederick Settle Barff, English chemist

George Curme, US industrial chemist

Louis Dohme, German-US pharmacist

Chemist working in laboratory

Chemist working in laboratory

Chemist working in laboratory

Chemist working with microbalance

Chemist working in laboratory

Chemist working in laboratory

Chemist adjusting burette

Chemist working with samples

Chemist working with samples

Chemist using NMR spectrometer

Chemist with spectroscopy results

Wilbur Atwater, US chemist

Wilbur Atwater, US chemist

Marcellin Berthelot, French chemist

Cliffs Shaft Mine Museum, Michigan, USA

James Andrew Harris, American nuclear chemist

Chemist working with vacuum pump

Chemist working with vacuum pump

Chemist working with vacuum pump

Chemist working with vacuum pump

Chemist working with vacuum pump

Chemist working with vacuum pump

Chemist working with vacuum pump

Chemist working with vacuum pump

Chemist working with vacuum pump

Chemist working with vacuum pump

Chemist with NMR spectroscopy phials

Sir Henry Roscoe, British chemist

Wilhelm Ostwald, German physical chemist

Harold Levey, US chemical engineer

Seaborg receiving the Arches of Science award, 1968

Payne and Rebstock, US antibiotics researchers

Rathe, Folkers and Kaczka, US antibiotics researchers

Selma Hayman, US biochemist

Firman Bear, US soil scientist

Jermain Creighton, US electrochemist

Colin Fink, US electrochemist

Francis Frary, US electrochemist

Kamikaze attack in World War II

1950s Soviet atom bomb test at Semipalatinsk

1950s Soviet atom bomb test at Semipalatinsk

1950s Soviet atom bomb test at Semipalatinsk

First Soviet hydrogen bomb test, 1953

1950s Soviet atom bomb test

1950s Soviet nuclear torpedo test at Novaya Zemlya

1950s Soviet nuclear torpedo test at Novaya Zemlya

Night drill by British troops, First World War

First World War mine-laying ship

First atomic bomb detonation

Liftoff of the Space Shuttle Challenger

Dust explosion in interconnecting vessels

Bucket elevator dust explosion, 1990s

Model of Bell's telephone of 1875

Herbert Charles Brown, American chemist

Michael Faraday, British physicist

Paul Ehrlich, German immunologist

Jane Stafford, US medical writer and chemist

Joseph Priestley, British chemist

Jonathan Hartwell, US cancer researcher

Aluminium powder explosion

Confederate marine explosives, 1865

Alchemical elements, 18th century

Claude Louis Berthollet, French chemist

Max von Pettenkofer, German chemist

Jeanne Osiecki, Swiss-US chemist

Guglielmo Marconi, Italian physicist

Marion Eppley, US physical chemist

17th Century chemist, artwork

Atomic emission spectroscopy analysis

Electricity pioneers, historical image

General Electric research, 1900s

Theodor Boveri, German geneticist

Theodor Boveri, German geneticist

Theodor Boveri, German geneticist

Jacques Montgolfier, French hot air balloon inventor

Leo Szilard, Hungarian-US physicist

C H Johnson, US physicist

William Swann, US physicist

William Swann, US physicist

William Swann, US physicist

William Swann, US physicist

George Downing Liveing, British chemist

Alfred Taylor, British toxicologist

Melvin Calvin, American biochemist

Florence Seibert, US biochemist

Michel Eugene Chevreul, French chemist

Gunpowder explosion

Essay on Combustion, 1794

Essay on Combustion, 1794

Stephen Hales, English botanist and physiologist

1799 Joseph Priestly Chemist oxygen

Martin Rodbell, US biochemist

Thomas Edison, US inventor

Michael Glazer, British physicist