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Leclanche wet cell, an early storage battery, 20th century
 
Leclanche wet cell, an early storage battery, 1896
 
Leclanche wet cell, an early storage battery, 1887
 
Copernican (heliocentric) system of the universe, 17th century. Artist: Johannes Hevelius
 
Voltaic battery (pile), 1887
 
Preparing and setting a Dynamite charge, Paris, 1890
 
Cartridge from Nobel Explosives Company Limited, Ardeer, Ayrshire, 1884
 
Workers at Nobel Explosives Company Limited, Ardeer, Ayrshire, 1884
 
Spectroscopic apparatus used by Robert Wilhelm Bunsen and Gustav Robert Kirchhoff, c1895
 
Scene from Jules Verne's From the Earth to the Moon, 1865
 
Jules Verne (1828-1905), De la Terre a la Lune, 1865
 
Jules Verne (1828-1905), De la Terre a la Lune, 1865
 
Jules Verne (1828-1905), Autour de la Lune, 1865
 
Jules Verne (1828-1905) Autour de la Lune, 1865
 
Jules Verne (1828-1905), Autour de la Lune, 1865
 
Leonhard Euler (1707-1783), Swiss mathematician, 1835
 
Leonhard Euler (1707-1783), Swiss mathematician, 1874
 
Leonhard Euler, 18th century Swiss mathematician, 1874
 
Leonhard Euler (1707-1783), Swiss mathematician, 1801
 
Colt Frontier revolver, invented by Samuel Colt (1814-62), c1850
 
Colt Frontier revolver, invented by Samuel Colt (1814-62), c1890
 
Samuel Colt (1814-1862), inventor of the Colt revolver, 1856
 
The apothecary's shop, Strasbourg, 1483. Artist: Johannis De Cuba
 
Assayer testing samples of gold or silver using a balance, 1683. Artist: Lazarus Ercker
 
A surveyor's level, 1547
 
Using astrolabes to calculate the height of a steeple, 1539. Artist: Petrus Apianus
 
Surveyors using quadrants to measure the height of a tower, c1617-c1619. Artist: Robert Fludd
 
Surveying, from Levinus Hulsius Instrumentorum Mechanicorum, Frankfurt-am-Main, 1605. Artist: Levinus Hulsius
 
Title page of Samuel Sturmy, Mariners Magazine, London, 1669. Artist: Samuel Sturmy
 
The moth Acontia luctuosa and orchid pollen, 1862
 
Pollen mass of Orchis mascula when first attached (A) and after depression (B), 1899
 
Darwinian Ancestor 1887. Artist: George du Maurier
 
George du Maurier cartoon from Punch illustrating Darwinism, 1887. Artist: George du Maurier
 
The Survival of the Fittest'; application of Darwinism in the 21st century, 1880. Artist: George du Maurier
 
Patagonians at Gregory Bay, 1831 (1839)
 
The Printer's Workshop 1568. Artist: Jost Amman
 
Fuegians at Woollya, with the Fitzroy expedition's camp in the background, 1831 (1839)
 
Charles Darwin, English naturalist, c1880
 
Experiment to calculate the speed of sound in air, Paris, 1822, (c1880). Artist: Robert Brown
 
Experiment to calculate the speed of sound in air, Paris, 1822 (1873). Artist: Amedee Guillemin
 
Joseph Louis Gay-Lussac making a balloon ascent from Paris, 14 September 1804 (1910)
 
Joseph Louis Gay-Lussac, French chemist, physicist and balloonist, c1824
 
Thomas Henry Huxley, English biologist, 1881. Artist: Edward Linley Sambourne
 
John Lubbock, first Baron Avebury, English banker, archaeologist, naturalist and politician, 1882. Artist: Edward Linley Sambourne
 
John Lubbock, first Baron Avebury, English banker, archaeologist, naturalist and politician, c1880
 
Idea for a video-phone using neon tubes to give the picture display, c1927
 
Abel Pifre's solar-powered printing press, c1894 ([c1927)
 
Sending a semaphore signal using flags, c1880. Artist: Geoffrey Douglas Giles
 
Mr O'Brien, the Irish Giant, the Tallest Man in the Known World 1803. Creator: John Kay
 
Chinese agriculture, 1825-1835
 
Crystallization of saltpetre (nitre, potassium nitrate, or KN03), 1683
 
Checking the quality of saltpetre (nitre, potassium nitrate, or KN03), 1683
 
Production of saltpetre (nitre, potassium nitrate, or KN03), 1683
 
Laboratory for refining gold and silver, showing typical laboratory equipment, 1683
 
Distillation of Nitric Acid, 1683
 
Athanor or Slow Harry a self-feeding furnace maintaining a constant temperature, 1683
 
Athanor or Slow Harry a self-feeding furnace maintaining a constant temperature, 1683
 
Furnace for processes where protracted heat required, such as cementation, 1580
 
Washing ore to extract gold, 1683
 
Alfred Moritz Mond, 1st Baron Melchett, British industrialist, c1926