FLO4578805: Apple berry or changeable flowered billardiera, Billardiera mutabilis - Handcoloured copperplate engraving by F. Sansom Jr. after an illustration by Sydenham Edwards from William Curtis' Botanical Magazine, T. Curtis, London, 1810, Edwards, Sydenham Teast (c.1768-1819) / Bridgeman Images
FLO4578869: Glaieul cardinal - Lithography by James Sowerby (1757-1822), from the Botanical Magazine by William Curtis (1746-1799), 1790 (England) - Superb corn-flag, Gladiolus cardinalis - Handcolored copperplate engraving from an illustration by James Sowerby from W. Curtis's “” Botanical Magazine,” Lambeth, London, 1790, Sowerby, James (1757-1822) / Bridgeman Images
FLO4573261: Asian elephant, Elephas maximus, endangered, and Bactrian camel, Camelus bactrianus, critically endangered. Handcoloured copperplate engraving from Bertuch's “” Bilderbuch fur Kinder”” (Picture Book for Children), Weimar, 1792. Friedrich Johann Bertuch (1747-1822) was a German publisher and man of arts most famous for his 12-volume encyclopedia for children illustrated with 1,200 engraved plates on natural history, science, costume, mythology, etc., published from 1790-1830. / Bridgeman Images
FLO4573628: Roman antiquite: seat machines, shelter for digging a tunnel 1, semi-circular shelter 2, shelter with belier 3, shelter on rolling cylinder 4 - Roman siege engines: shelter for sappers digging a tunnel, Vineae 1, semi-circular shelter Pluteus 2, shelter Testudo with battering ram Aries 3, shelter on rolling cylinders Musculus 4. Handcoloured copperplate engraving from Friedrich Johann Bertuch's Bilderbuch fur Kinder (Picture Book for Children), Weimar, 1795. / Bridgeman Images
FLO4574143: Crystals magnified under a microscope: silver solution and Diana's tree 1, camphor 2, and niter 3. Handcoloured copperplate engraving from Bertuch's “” Bilderbuch fur Kinder”” (Picture Book for Children), Weimar, 1798. Friedrich Johann Bertuch (1747-1822) was a German publisher and man of arts most famous for his 12-volume encyclopedia for children illustrated with 1,200 engraved plates on natural history, science, costume, mythology, etc., published from 1790-1830. / Bridgeman Images
FLO4573911: Goliath bird-eating spider, Theraphosa blondi, with hummingbird 1, Italian tarantula, Lycosa tarantula 2, orange spider of Curacao 3, and species of scorpions of India 4, America 5, and Europe 6. Handcoloured copperplate engraving from Friedrich Johann Bertuch's “” Bilderbuch fur Kinder”” (Picture Book for Children), Weimar, 1792. / Bridgeman Images
FLO4573962: Meadow jumping mouse, Zapus hudsonius 1, sandy mole rat, Spalax arenarius 2, grey dwarf hamster, Cricetulus migratorius 3, Siberian hamster, Phodopus sungorus 4, Chinese hamster Cricetulus barabensis 5, northern mole vole, Ellobius talpinus 6, and Cape mole rat, Georychus capus ensis 7. Handcoloured copperplate engraving from Bertuch's “” Bilderbuch fur Kinder”” (Picture Book for Children), Weimar, 1798. Friedrich Johann Bertuch (1747-1822) was a German publisher and man of arts most famous for his 12-volume encyclopedia for children illustrated with 1,200 engraved plates on natural history, science, costume, mythology, etc., published from 1790-1830. / Bridgeman Images
FLO4574045: Tulip tree, Liriodendron tulipifera, and Japanese star anise, Illicium anisatum. Handcoloured copperplate engraving from Bertuch's “” Bilderbuch fur Kinder”” (Picture Book for Children), Weimar, 1798. Friedrich Johann Bertuch (1747-1822) was a German publisher and man of arts most famous for his 12-volume encyclopedia for children illustrated with 1,200 engraved plates on natural history, science, costume, mythology, etc., published from 1790-1830. / Bridgeman Images
FLO4574076: Chicken breeds, Gallus gallus domesticus: German stud 1, hen 2, English stud 3, hen 4, tailless stud 5, hen 6, Polish hen 7, and bantam stud 8, hen 9. Handcoloured copperplate engraving from Bertuch's “” Bilderbuch fur Kinder”” (Picture Book for Children), Weimar, 1798. Friedrich Johann Bertuch (1747-1822) was a German publisher and man of arts most famous for his 12-volume encyclopedia for children illustrated with 1,200 engraved plates on natural history, science, costume, mythology, etc., published from 1790-1830. / Bridgeman Images
FLO4574148: Pineapple flower 1 and fruit 2, Pineapple comosus. Handcoloured copperplate engraving from Bertuch's “” Bilderbuch fur Kinder”” (Picture Book for Children), Weimar, 1798. Friedrich Johann Bertuch (1747-1822) was a German publisher and man of arts most famous for his 12-volume encyclopedia for children illustrated with 1,200 engraved plates on natural history, science, costume, mythology, etc., published from 1790-1830. / Bridgeman Images
FLO4574183: Magnified image of common moss, Phasum cuspidatum 1, and microscopic enlargment of pond algae. Handcoloured copperplate engraving from Bertuch's “” Bilderbuch fur Kinder”” (Picture Book for Children), Weimar, 1798. Friedrich Johann Bertuch (1747-1822) was a German publisher and man of arts most famous for his 12-volume encyclopedia for children illustrated with 1,200 engraved plates on natural history, science, costume, mythology, etc., published from 1790-1830. / Bridgeman Images
FLO4574664: Cinereous vulture, Aegypius monachus 1, Egyptian vulture, Neophron percnopterus 2, bald eagle, Haliaeetus leucocephalus 3, Turkey vulture, Cathartes aura 4, secretary bird, Sagittarius serpentarius 5, and Maltese vulture, Vultur fuscus (Neophron percnopterus) 6. Handcoloured copperplate engraving from Bertuch's “” Bilderbuch fur Kinder”” (Picture Book for Children), Weimar, 1798. Friedrich Johann Bertuch (1747-1822) was a German publisher and man of arts most famous for his 12-volume encyclopedia for children illustrated with 1,200 engraved plates on natural history, science, costume, mythology, etc., published from 1790-1830. / Bridgeman Images
PIX4573959: Detection of an exoplanet by radial velocity - Detection of an exoplanet: Radial velocity or Doppler method - This detection method is based on the study of the light spectrum of the star. A planet orbiting around a star periodically influences the movement of that star. By Doppler effect (the star's light wave shifts to blue when it approaches and decals to red when it moves away), we can measure the radial velocity of the star and know the position of the planet's orbit. An exoplanet orbiting a larger star could produce changes in position and velocity of the star as they orbit their common center of mass. Those variations in the radial velocity are known in studying the spectral lines of the star due to the Doppler effect (blue shift when the star is approaching, redshift when it is receding) / Bridgeman Images
FLO4573972: Butterfly wing, showing structure, skeleton, scales and microscopic detail. Handcoloured copperplate engraving from Bertuch's “” Bilderbuch fur Kinder”” (Picture Book for Children), Weimar, 1798. Friedrich Johann Bertuch (1747-1822) was a German publisher and man of arts most famous for his 12-volume encyclopedia for children illustrated with 1,200 engraved plates on natural history, science, costume, mythology, etc., published from 1790-1830. / Bridgeman Images
FLO4574032: Great it, Parus major 1, blue it, Parus caeruleus 2, marsh it, Poecile palustris 3, long-tailed it, Aegithalos caudatus 4, coal it, Periparus ater 5, crested it, Lopophanes cristatus 6, and bearded reedling, Panurus biarmicus 7. Handcoloured copperplate engraving from Bertuch's “” Bilderbuch fur Kinder”” (Picture Book for Children), Weimar, 1798. Friedrich Johann Bertuch (1747-1822) was a German publisher and man of arts most famous for his 12-volume encyclopedia for children illustrated with 1,200 engraved plates on natural history, science, costume, mythology, etc., published from 1790-1830. / Bridgeman Images