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The Rotunda at Ranelagh Gardens, London, mid-18th century. Artist: Thomas Bowles
 
Hanover Square, Westminster, London, early 18th century. Artist: Sutton Nicholls
 
The Committee 18th century. Artist: William Hogarth
 
Portrait of Dr Benjamin Hoadly, Lord Bishop of Winchester, 1743. Creator: Bernard Baron
 
The actor David Garrick in the role of Richard III, 1746. Artist: William Hogarth
 
Thomas Alva Edison, American inventor, with an early hand-driven model of his phonograph, 1878
 
Thomas Alva Edison, American inventor, c1879
 
Thomas Edison, American inventor, in his laboratory, Menlo Park, New Jersey, USA, 1870s (1920s)
 
Thomas Alva Edison, American inventor, c1906
 
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
 
Joseph Priestley, English chemist and Presbyterian minister, 1835
 
Joseph Priestley, English chemist and Presbyterian minister, 19th century
 
Copernican (heliocentric) system of the universe, 17th century. Artist: Johannes Hevelius
 
Voltaic battery (pile), 1887
 
Thomas Young (1773-1829), physicist and Egyptologist, 19th century
 
Thomas Young (1773-1829), physicist and Egyptologist, 19th century
 
Spectroscopic apparatus used by Robert Wilhelm Bunsen and Gustav Robert Kirchhoff, c1895
 
Spectroscopic apparatus used by Robert Wilhelm Bunsen and Gustav Robert Kirchhoff, c1895
 
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), c1890
 
Finding the angular distance between two edges of a wood using a cross-staff, 1617-1619
 
Measuring the distance of an inaccessible object by triangulation using a hinged staff, 1617-1619
 
Reiner Gemma Frisius, Dutch astronomer, geographer, cartographer and mathematician, 1539
 
Planimeter used in conjunction with a set square for surveying, 1605
 
A surveyor's level, 1547
 
Forms of astrolabe in use for surveying, 1650
 
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
 
Andreas Vesalius, 16th century Flemish anatomist, c1789-c1798
 
Andreas Vesalius, 16th century Flemish anatomist
 
Charles Darwin (1809-1882), English naturalist, in his greenhouse
 
Charles Darwin, English naturalist, 1875. Artist: Edward Linley Sambourne
 
Charles Darwin, English naturalist, 1883
 
Charles Darwin, English naturalist, c1880
 
Darwin's study at Down House, his home near Beckenham, Kent, 1883
 
Down House, near Beckenham, Kent, from the garden, 1883
 
Experiment to calculate the speed of sound in air, Paris, 1822 (1873). Artist: Amedee Guillemin
 
Joseph Louis Gay-Lussac, French chemist, physicist and balloonist, c1870
 
Joseph Louis Gay-Lussac, French chemist and physicist, c1895
 
Joseph Louis Gay-Lussac, French chemist and physicist, c1860
 
Richard Owen, British naturalist, c1856 (1891)
 
Cashew nut - Anacardium occidentale, c1798
 
Roller bridge or inclined plane for transferring vessels from one level of a canal to another, 1737
 
Pound lock, 1664
 
Von Guericke's demonstration of the power of air pressure, 1672
 
Experiment designed to show that air has weight, 1672
 
Von Guericke's demonstration of the strength of a vacuum, 1654 (1672)
 
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