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Portrait of Catherine II
Portrait of Catherine II, oil on canvas by Alexey Antropov, 18th century.
Art Gallery of Tver, Russia.
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Bluefly under Microscope
A pen and ink drawing by Robert Hooke (1635-1703) first published in his Micrographia in 1665. This page shows a bluefly seen under a microscope. (National Library of Wales)
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Frozen Structures under Microscope
A pen and ink drawing by Robert Hooke (1635-1703) and published in his Micrographia in 1665. This page shows frozen structures seen under a microscope. (National Library of Wales)
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Culpeper Microscope
A microscope with boxfoot made by George Adams in 1738. Based on a model designed by Edward Culpeper (1670-1737). The concave mirror at the base illuminated the specimen better than a flat mirror. (Science Museum, London)
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Microscope of van Leeuwenhoeck
A model of the microscope created by Antonie van Leeuwenhoek (1632-1723). Made by the Boerhaave Museum, Leiden, 1983. The microscope used a glass bead as a magnifier, giving a much greater magnification than other...
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Microscope of Louis Pasteur
The compound monocular microscope of Louis Pasteur (1822-1895). Made by Nachet et fils, 1861-70. (Science Museum, London)
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The Five Good Emperors of the Roman Empire (96 - 180 CE)
This infographic illustrates the succession of Roman emperors from 96 to 180 CE, commonly referred to as the Five Good Emperors - Nerva, Trajan, Hadrian, Antoninus Pius, and Marcus Aurelius. This...
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18th-Century Microscope
An early 18th-century microscope designed and made by John Marshall. It is a compound microscope, that is, it uses three lenses. Made of brass, wood, and other materials. (Science Museum, London)
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Galileo's Map of the Moon
A map of the Moon's surface by Galileo (1564-1642), drawn using a telescope the astronomer had built himself. The uneven line of shadow aided Galileo in identifying the nature of the Moon's surface and the approximate...
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Hevelius' Astronomical Telescope
A print showing one of the astronomical telescopes built by Johannes Hevelius (1611-1687) in Danzig in the 1640s. Helevius used such devices to map the surface of the Moon. (Harvard University)
