Surveying, early 17th century.
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AR926240 
Surveying and timekeeping, 1551.
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AR926236 
William Herschel's reflecting telescope of 40 ft (12 m) focal length, 1789 (1807).
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AR926097 
'Mr Frank Crisp', 1890. Artist: Spy
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AR926075 
Clepsydra (water clock) indicating hours and chiming, 1617-1619.
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AR926047 
Long focal length refracting telescope, 1728.
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AR926037 
John Leslie, Scottish natural philosopher and physicist, 19th century.
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AR925991 
Evangelista Torricelli, Italian physicist, inventing the mercury barometer, 1643 (1873).
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AR925793 
Torricelli's demonstration of the effect of atmospheric pressure on a column of liquid, 1643 (1873).
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AR925785 
Von Guericke's water barometer, 1672.
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AR925781 
Blaise Pascal, 17th century French mathematician, physicist and religious philosopher, 1878
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AR925777 
Experimental barometers used by the Accademia dell Cimento, Florence, Italy, 1691.
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AR925774 
Experimental barometers used by the Accademia dell Cimento, Florence, Italy, 1691.
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AR925770 
Experimental barometers used by the Accademia dell Cimento, Florence, Italy, 1691.
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AR925767 
Frontispiece of Ontledigen en Ondekkigen...Brieven by Anton van Leeuwenhoek, 1686.
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AR925757 
Reconstruction of a clepsydra (water clock), invented by Ctesibius of Alexandria, c270 BC (1857).
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AR925752 
Dorothea Klumpke Roberts, American mathematician and astronomer, 1903.
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AR925690 
Jules Pierre Cesar Janssen, French astronomer, 1893.
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AR925619 
Using a quadrant with a plumb bob to calculate the height of a tower by triangulation, 1551.
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AR925457 
Medal commemorating the discovery of penicillin, 1945.
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AR925410 
Sending a semaphore signal using flags, c1880. Artist: Geoffrey Douglas Giles
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AR925304 
William Henry Bragg, English physicist, early 20th century.
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AR925177 
James Brindley, English civil engineer and canal builder, c1770 (1835).
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AR925172 
Galileo observing the swaying of the chandelier in Pisa Cathedral, c1584 (1870).
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AR925068 
Foucault using his pendulum to demonstrate the rotation of the Earth, Paris, 1851 (1887).
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AR924841 
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601 - 650 of 1607
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