FLO4591426: Robert Salmon's portable thrashing mill. Copperplate engraving by Wilson Lowry after a drawing by J. Farey from Abraham Rees' Cyclopedia or Universal Dictionary of Arts, Sciences and Literature, Longman, Hurst, Rees, Orme and Brown, London, 1820. / Bridgeman Images

FLO4591432: Anatomy of human musculature showing outer muscles from the front, 1820 (copperplate engraving) / Bridgeman Images

PIX4591486: Star Sky, from the Coach to the Lyre - Starry sky, from Auriga to Lyra - At the beginning of the night of late June, the Coach is almost lying. Higher, the Big Bear and Little Bear are visible, with the Dragon winding between them. Above the head of the mythical animal, the Lyre, then Hercules on the left and below, the Boreale Crown and the Bovier. The constellations are traced. June 24, 2008. In this beginning of night of late June, Auriga is almost set. Higher, Ursa Major and Ursa Minor are visible, with Draco between them. Above the head of the mythic animal, the Lyra, then Hercules on the left and lower, Corona Borealis and Bootes. Constellations are drawn. June 24 2008 / Bridgeman Images

FLO4591502: Henry Maudslay's revolutionary screw-cutting lathe, 1800. Copperplate engraving by Wilson Lowry after a drawing by J. Farey from Abraham Rees' Cyclopedia or Universal Dictionary of Arts, Sciences and Literature, Longman, Hurst, Rees, Orme and Brown, London, 1815. / Bridgeman Images

OMG4591505: Nanjing Long Lu Street, Puxi District, Shanghai, China. / Bridgeman Images

OMG4591528: Nanjing Long Lu Street, Puxi District, Shanghai, China. / Bridgeman Images

PIX4591397: Constellations of the Great Bear, Little Bear and Dragon - Polaris, the Big Dipper to Arcturus - Also visible are the constellations of the Little Lion, the Hunting Dogs, the Boreale Crown (with Arcturus, the brilliant star at the top of the picture), the Boreale Crown, Cephee, Cassiopee, the Giraffe and the Lynx. Also visible are the constellations of Leo Minor, Canes Venatici, Botes, Corona Borealis, Cepheus, Cassiopeia, Camelopardalis and Lynx / Bridgeman Images

OMG4591570: Nanjing Dong Lu Street, Puxi in Shanghai, China. / Bridgeman Images

FLO4591615: Plan and elevation of an iron forge, with chafery, finery, blowing engine, and balling or pudding furnace. Copperplate engraving by Wilson Lowry after a drawing by John Farey Jr. from Abraham Rees' Cyclopedia or Universal Dictionary of Arts, Sciences and Literature, Longman, Hurst, Rees, Orme and Brown, London, 1811. / Bridgeman Images

FLO4591468: Winches, pulleys and other machinery, early 19th century. Copperplate engraving by Wilson Lowry after a drawing by J. Farey from Abraham Rees' Cyclopedia or Universal Dictionary of Arts, Sciences and Literature, Longman, Hurst, Rees, Orme and Brown, London, 1820. / Bridgeman Images

OMG4591638: Night in Shanghai, China. Photography 21/04/05. / Bridgeman Images

FLO4591669: Types of hygrometers, 18th century, to measure moisture content. Jean-Andre De Luc's whalebone hygrometer, and others by Horace-Benedict de Saussure, Benjamin Meggot Forster, Henry Kater and the Hungarian Machine. Copperplate engraving by Sidney Hall from Abraham Rees' Cyclopedia or Universal Dictionary of Arts, Sciences and Literature, Longman, Hurst, Rees, Orme and Brown, London, 1820. / Bridgeman Images

OMG4591551: Nanjing Long Lu Street, Puxi District, Shanghai, China. / Bridgeman Images

OMG4591697: Lane in Luwan district (Puxi) in Shanghai, China. / Bridgeman Images

FLO4591569: Varieties of masonry for walls, including reticulated, uncertain, isodomum, pseudisodomum with unequal courses, Roman emplection with core of rubble and Greek emplection. Copperplate engraving by Wilson Lowry from Abraham Rees' Cyclopedia or Universal Dictionary of Arts, Sciences and Literature, Longman, Hurst, Rees, Orme and Brown, London, 1816. / Bridgeman Images

FLO4591585: Diagrams of magnets, magnetic fields, iron filings, etc. Copperplate engraving by Wilson Lowry from Abraham Rees' Cyclopedia or Universal Dictionary of Arts, Sciences and Literature, Longman, Hurst, Rees, Orme and Brown, London, 1812. / Bridgeman Images

OMG4591683: Puxi district in Shanghai, China. / Bridgeman Images

OMG4591706: Lane in Luwan district (Puxi) in Shanghai, China. / Bridgeman Images

PIX4591733: Clock Constellation - The constellation Horologium - Clock is a constellation in the southern hemisphere, located just below Eridan. The constellation Horologium is one of those constellations of the southern hemisphere, which stands just under Eridanus / Bridgeman Images

FLO4591848: Canal swing bridge and canal navigator's tools including barow, grafting tool, shovel, scoop and horsing-block. Copperplate engraving by Wilson Lowry after a drawing by John Farey Jr. from Abraham Rees' Cyclopedia or Universal Dictionary of Arts, Sciences and Literature, Longman, Hurst, Rees, Orme and Brown, London, 1806. / Bridgeman Images

OMG4591872: Shanghai, China. Photography 21/04/05. / Bridgeman Images

FLO4591908: Furnace for enamelling watch dial plates and Henry Bone (1755-1834)'s enamelling furnace. Copperplate engraving by Wilson Lowry after a drawing by John Farey from Abraham Rees' Cyclopedia or Universal Dictionary of Arts, Sciences and Literature, Longman, Hurst, Rees, Orme and Brown, London, 1811. / Bridgeman Images

PIX4591930: Constellations of the Unicorn and the Little Dog - Constellations of Monoceros and Canis Minor - Constellation of the Unicorn, at its right Orion, at the top left the Little Dog with the star Procyon, at the bottom of Sirius. The stars Sirius, Procyon and Betelgeuse form the asterism of the winter triangle. Monoceros constellation, at right: Orion, top left Canis Minor with Procyon, bottom Sirius in Canis Major. Monoceros (the Unicorn) represents mythical creature set among the stars. This one has the forelegs and (horned) head of a horse, the hindquarters of a stag and the tail of a lion. Such creatures are sometimes seen in Assyrian (~ 2500 - 600 BCE) carvings, and have been interpreted as originating in traveller's tales of the Indian or African rhinoceros. The modern constellation sits astride both the Milky Way and the celestial equator. It is also enclosed on three sides by the bright stars of the Winter Triangle (Sirius, Procyon and Betelgeuse). Of course this refers to the northern hemisphere winter; these stars are equally visible in the southern summer and make Monoceros easy to find. However, the stars within the constellation itself are rather faint, though they can be joined tp produce a figure resembling a unicorn. The famous Rosette nebula is just visible in the only closed triangle of the constellation figure. Canis Minor (the Lesser Dog) is sometimes regarded as the smaller of the two dogs of Orion the hunter. It is minor indeed, just 185 degrees square, and 71st in size of the 88 modern constellations. The most obvious and interesting object Canis Minor is its main star, the pale yellow Procyon. Its name is from the Greek, meaning 'before the dog', since it rises before the Sirius, the Dog Star / Bridgeman Images

FLO4591962: Anatomy of the human eye showing eyeball, cornea, lens, optic nerve, etc.CopperPlate engraving by Milton from Abraham Rees' Cyclopedia or Universal Dictionary of Arts, Sciences and Literature, Longman, Hurst, Rees, Orme and Brown, London, 1820. / Bridgeman Images

OMG4591978: Huangpu (Puxi) district in Shanghai, China. / Bridgeman Images

PIX4592047: Constellations of the Hare and the Big Dog - Lepus and Canis Major constellations - Visible also near the horizon, the Dove and the Burin / Bridgeman Images

FLO4591951: Plans and sections of a deviling machine, used for tearing rags in cotton manufacture, 18th century. Copperplate engraving by Wilson Lowry after a drawing by James Burton from Abraham Rees' Cyclopedia or Universal Dictionary of Arts, Sciences and Literature, Longman, Hurst, Rees, Orme and Brown, London, 1811. / Bridgeman Images

OMG4592086: 21st century avenue in Pudong district in Shanghai, China. / Bridgeman Images

OMG4592110: 21st century avenue in Shanghai, China. Photograph 21/04/05. / Bridgeman Images

PIX4588129: Star sky and planets - 2010.07.24 Four Planet Sunset - In the sky are the planets Mercury, Venus, Mars and Saturn 24 July 2010, Java, Indonesia. See image a-cnj05-00076 for annotee version. Sunset taken on the summit of Mt.Merbabu, Java, Indonesia. Mercury, Venus, Mars and Saturn are in a line above the horizon. See image a-cnj05-00076 for an annotated image / Bridgeman Images

OMG4588236: The San Miguel Marche in Madrid, Spain. Architecture by Alfonso Dube, 1916. Photography 24/05/09 / Bridgeman Images

LRI4588295: Scarab gold ring, 4th Century BC, Etruscan, (4th century BC) / Bridgeman Images

LRI4588381: Thirteen gold loops, 4th century BC, Etruscan, (4th century BC) / Bridgeman Images

FLO4592895: Surgical procedures from the 19th century: splints and bandages for a fracture of the leg. Copperplate engraving by Wilson Lowry from Abraham Rees' “” Cyclopedia or Universal Dictionary,” London, 1810. / Bridgeman Images

PIX4621062: Nebula Sh2 - 155 in Cephee - The Cave Nebula The north is at top. The Cave Nebula is a faint region of Hii emission and surrounding dust in Cepheus constellation. This area is rich of colours and fine details. The central “” cave - like”” structure name the nebula, but notice also the subtle patch of blue reflection nebulosity all around in the field. The star colors are also beautiful, which adds a nice touch to this celestial field. This image is based on data acquired by the Oschin Telescope at the Mount Palomar Observatory / Bridgeman Images

PIX4621130: Star Formation in the DR21 Region - Star Formation in the DR21 Region - This star-forming region is about 6200 years old - light. Hidden in light visible by interstellar dust, this region rises in infrared light. Gas filaments appear in red; they emphasize the presence of aromatic polycyclic hydrocarbons (PAH); they are organic molecules composed of carbon atoms and hydrogen that could be the germs on which the first bricks of life appeared. Image obtained by the Spitzer space telescope in 2003. Hidden behind a shroud of dust in the constellation Cygnus is a stellar nursery called DR21, which is giving birth to some of the most massive stars in our galaxy. Visible light images reveal no trace of this interstellar cauldron because of heavy dust obscuration. This image from Nasa's Spitzer Space Telescope allow us to peek behind the cosmic veil and pinpoint one of the most massive natal stars yet seen in our Milky Way galaxy. The never - before - seen star is 100,000 times as bright as the Sun. Also revealed for the first time is a powerful outflow of hot gas emanating from this star and bursting through a giant molecular cloud. The image is a large - scale mosaic assembled from individual photographs obtained with the Infraared Array Camera (IRAC) aboard Spitzer. The image covers an area about two times that of a full moon. The mosaic is a composite of images obtained at mid - infrared wavelengths of 3.6 microns (blue), 4.5 microns (green), 5.8 microns (orange) and 8 microns (red). The brightest infrared cloud near the top center corresponds to DR21, which presumably contains a cluster of newly forming stars at a distance of 10,000 light - years. Protruding out from DR21 toward the bottom left of the image is a gaseous outflow (green), containing both carbon monoxide and molecular hydrogen. Data from the Spitzer spectrograph, which breaks light into its constitutes / Bridgeman Images