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Photograph taken during the Exposition Universelle (World Fair) Paris, 1900

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Photograph taken during the Exposition Universelle...

The Deluge VII. Coils of Lightening and rain; Black chalk. Circa 1514-16. By Leonardo da Vinci

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The Deluge VII. Coils of Lightening and rain; Blac...

Portrait of Andreas Vesalius

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Portrait of Andreas Vesalius

Diagram of an experiment conducted by J J Thomson

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Diagram of an experiment conducted by J J Thomson

Gaston Tissandier

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Gaston Tissandier

Jean-Pierre Blanchard

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Jean-Pierre Blanchard

$Diagram illustrating the effect of refraction$

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Diagram illustrating the effect of refraction

A scientific experiment on vibration nodes

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A scientific experiment on vibration nodes

Heinrich Hertz's experiments of electromagnetic waves: demonstration proves James Clerk Maxwell's contention that a metallic surface should reflect electromagnetic waves

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Heinrich Hertz's experiments of electromagnetic wa...

Photograph showing particle physics experiment at the Brookhaven National Laboratory, New York

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Photograph showing particle physics experiment at ...

An experiment showing how condensing steam gives out heat

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An experiment showing how condensing steam gives o...

A mercury thermometer and linked apparatus

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A mercury thermometer and linked apparatus

A typical 19th century air pump

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A typical 19th century air pump

Lavoisier and Laplace's Calorimeter which he used to determine the amount of heat produced by combustion

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Lavoisier and Laplace's Calorimeter which he used ...

Illustration showing a stack of paper with a human thumb passing over the surface

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Illustration showing a stack of paper with a human...

An experiment involving an inclined plane used to demonstrate the action of gravity on a falling body

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An experiment involving an inclined plane used to ...

The trajectory of a cannon ball shown as a parabolic path rather than a circular arc

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The trajectory of a cannon ball shown as a parabol...

A Wheatstone stereoscope

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A Wheatstone stereoscope

Engraving depicting a stereoscope slide

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Engraving depicting a stereoscope slide

The design for water wheel driven by perpetual motion

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The design for water wheel driven by perpetual mot...

Australian aboriginal using a bow drill a prehistoric form of drilling tool, which was used to produce fire

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Australian aboriginal using a bow drill a prehisto...

A vortex box used for studying smoke rings

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A vortex box used for studying smoke rings

Three thermometer scales - centigrade, Fahrenheit and Réaumur

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Three thermometer scales - centigrade, Fahrenheit ...

A calibration of a mercury thermometer at boiling point of water at normal atmospheric pressure

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A calibration of a mercury thermometer at boiling ...

Photograph of a LASER FOR SPACE — Gas-filled electronic device whose first job will be to greatly sharpen the accuracy of a new space tracking radar is fired up by an engineer at Sperry Rand's Electro...

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Photograph of a LASER FOR SPACE — Gas-filled elect...

Various applications of the inclined plane

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Various applications of the inclined plane

Illustration of an 19th Century mechanical pulley

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Illustration of an 19th Century mechanical pulley

Various applications of the inclined plane

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Various applications of the inclined plane

The Pekin Observatory

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The Pekin Observatory

The Einstein Tower, an astrophysical observatory in the Albert Einstein Science Park in Potsdam, Germany

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The Einstein Tower, an astrophysical observatory i...

$Robert Stirling Newall's25 - inch refractor on a 'German' equatorial mounting$

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Robert Stirling Newall's25 - inch refractor on a '...

The Great Comet of1843

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The Great Comet of1843

A medal struck to commemorate the Great Comet of1596

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A medal struck to commemorate the Great Comet of15...

A transit instrument, used for finding celestial bodies crossing the meridian, within an observatory

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A transit instrument, used for finding celestial b...

John Henry Pepper demonstrating the giant induction coil at the Polytechnic Institute, London, before Princesses Louise and Beatrice

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John Henry Pepper demonstrating the giant inductio...

Engraving depicting an Louis Pasteur experiment demonstrating that fermentation and putrefaction are caused by air-borne organisms

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Engraving depicting an Louis Pasteur experiment de...

Ole Rømer's use of the eclipses of Jupiter's satellites to measure the speed of light

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Ole Rømer's use of the eclipses of Jupiter's satel...

Photographic portrait of Marie Curie

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Photographic portrait of Marie Curie

Medal depicting Andreas Vesalius

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Medal depicting Andreas Vesalius

Engraving depicting the days of the week in the order of the supposed distance of the planets from the Earth

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Engraving depicting the days of the week in the or...

$Diagram illustrating the effect of refraction$

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Diagram illustrating the effect of refraction

Photograph of the first two cyclotron models designed by Ernest Lawrence

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Photograph of the first two cyclotron models desig...

Lavoisier and Laplace's Calorimeter which he used to determine the amount of heat produced by combustion

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Lavoisier and Laplace's Calorimeter which he used ...

An air condenser

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An air condenser

Joseph Black lecturing on latent heat at Glasgow University

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Joseph Black lecturing on latent heat at Glasgow U...

Foucault'S pendulum invented by Léon Foucault

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Foucault'S pendulum invented by Léon Foucault

An experiment involving an inclined plane used to demonstrate the action of gravity on a falling body

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An experiment involving an inclined plane used to ...

The design for an air and weight driven by perpetual motion

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The design for an air and weight driven by perpetu...

A bow drill, a prehistoric form of drilling tool, which was used to produce fire

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A bow drill, a prehistoric form of drilling tool, ...

A bow drill, a prehistoric form of drilling tool, which was used to produce fire

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A bow drill, a prehistoric form of drilling tool, ...

A hydrometer, an instrument that measures the specific gravity

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A hydrometer, an instrument that measures the spec...

Barker'S Mill'

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Barker'S Mill'

Various applications of the inclined plane

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Various applications of the inclined plane

Illustration of an 19th Century mechanical pulley

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Illustration of an 19th Century mechanical pulley

Illustration of an 19th Century mechanical pulley

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Illustration of an 19th Century mechanical pulley

A disintegrating meteor, recorded in the 6th Century

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A disintegrating meteor, recorded in the 6th Centu...

The Pekin Observatory

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The Pekin Observatory

$Refractor on a 'German' equatorial mounting$

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Refractor on a 'German' equatorial mounting

The Great Comet of1843

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The Great Comet of1843

A medal struck to commemorate the Great Comet of1596

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A medal struck to commemorate the Great Comet of15...

The Great Comet of1811

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The Great Comet of1811

A transit instrument, used for finding celestial bodies crossing the meridian, within an observatory

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A transit instrument, used for finding celestial b...

Photographic portrait of William Henry Perkin

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Photographic portrait of William Henry Perkin

Engraving depicting an Louis Pasteur experiment demonstrating that fermentation and putrefaction are caused by air-borne organisms

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Engraving depicting an Louis Pasteur experiment de...

Photograph of Walter Wislicenus

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Photograph of Walter Wislicenus

Portrait of Sir Thomas Watson, 1st Baronet

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Portrait of Sir Thomas Watson, 1st Baronet

The organs of the body and the zodiacal influences on them by Robert Fludd

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The organs of the body and the zodiacal influences...

Crowds gathered, in the Champs de Mars, to watch the landing of the first successful hydrogen filled balloon

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Crowds gathered, in the Champs de Mars, to watch t...

The landscape of Mars photographed by Curiosity Rover, a robotic rover exploring Gale Crater on Mars as part of NASA's Mars Science Laboratory mission since it was landed on Aeolis Palus in Gale Crate...

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The landscape of Mars photographed by Curiosity Ro...

A general view of early x-ray apparatus powered by wet cells

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A general view of early x-ray apparatus powered by...

The two different effects of freezing water in an iron sphere - left, ejection of stopper by column of ice; right, splitting of the sphere

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The two different effects of freezing water in an ...

Two boys trying to pull apart two Magdeburg hemispheres

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Two boys trying to pull apart two Magdeburg hemisp...

Instruments for measuring sound waves within water and pressurised air

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Instruments for measuring sound waves within water...

The mechanism of an air pump

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The mechanism of an air pump

Joseph Black lecturing on latent heat at Glasgow University

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Joseph Black lecturing on latent heat at Glasgow U...

A gunner firing ball from a mortar

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A gunner firing ball from a mortar

An electric gyroscope, a device consisting of a wheel or disc mounted so that it can spin rapidly about an axis which is itself free to alter in direction

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An electric gyroscope, a device consisting of a wh...

An experiment used to investigate the inertia of bodies using two suspended weights whose movements could be accurately measure, and allowing one to collide with the other, which was stationary

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An experiment used to investigate the inertia of b...

The path of a projectile according to Niccolò Fontana Tartaglia

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The path of a projectile according to Niccolò Font...

Perpetual motion by magnetism

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Perpetual motion by magnetism

Australian aboriginal using a bow drill a prehistoric form of drilling tool, which was used to produce fire

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Australian aboriginal using a bow drill a prehisto...

The studying of vortex rings in liquid

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The studying of vortex rings in liquid

A calibration of a mercury thermometer at boiling point of water at normal atmospheric pressure

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A calibration of a mercury thermometer at boiling ...

A hydrostatic bellows

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A hydrostatic bellows

Illustration of an 19th Century mechanical pulley

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Illustration of an 19th Century mechanical pulley

Illustration of an 19th Century mechanical pulley

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Illustration of an 19th Century mechanical pulley

Illustration of an nineteenth century cog and gear mechanism

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Illustration of an nineteenth century cog and gear...

Illustration of parallax showing the apparent displacement of the finger when viewed with first one eye and then the other, due to the different position from which it is observed

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Illustration of parallax showing the apparent disp...

Photograph of the interior of the Pulkovo Observatory, Russia, the principal astronomical observatory of the Russian Academy of Sciences

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Photograph of the interior of the Pulkovo Observat...

The United States Naval Observatory, Washington

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The United States Naval Observatory, Washington

The Great Comet of1843

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The Great Comet of1843

Tycho Brahe's planetary system showing at X the comet of1577

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Tycho Brahe's planetary system showing at X the co...

A meridian circle, used to determine altitude of celestial bodies, and a transit instrument, used for finding the celestial bodies crossing the meridian

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A meridian circle, used to determine altitude of c...

Georg Richmann being killed by while repeating Benjamin Franklin's experiment on the electrical nature of lightning: struck by a fireball

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Georg Richmann being killed by while repeating Ben...

Photographic portrait of William Henry Perkin

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Photographic portrait of William Henry Perkin

Engraving depicting Louis Pasteur's first apparatus for cooling and fermenting wort during his work on beer

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Engraving depicting Louis Pasteur's first apparatu...

The night and day of the microcosm by Robert Fludd

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The night and day of the microcosm by Robert Fludd

Crowds gathered, in the Champs de Mars, to watch the landing of the first successful hydrogen filled balloon

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Crowds gathered, in the Champs de Mars, to watch t...

High voltage x-ray equipment, x-ray tube on right, Ruhmkorff high voltage coil on left

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High voltage x-ray equipment, x-ray tube on right,...

A case of spontaneous combustion

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A case of spontaneous combustion

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