Optics: a micrometer, for range-finding [], with diagrams of its operation. Engraving by Barlow. https://www.rawpixel.com/image/14020385/image-paper-art-technologyFree Image from public domain licenseThe basket of a balloon with two men inside, and an engine with propellors. Wood engraving by E.A Tilly. https://www.rawpixel.com/image/14018501/image-person-art-skyFree Image from public domain licenseA Zouave soldier, holding a poison bottle, is carrying on his back Napoleon III, Emperor of the French, who is looking… https://www.rawpixel.com/image/13981381/image-cartoon-face-personFree Image from public domain licenseAstronomy: an ancient scholar (Aristotle) observing a meteor or comet using a telescope. Engraving by J. Kip, 1694, after G.… https://www.rawpixel.com/image/14003080/image-cartoon-person-crossFree Image from public domain licenseAn Early Telescope. A man is looking through a telescope, the parts of which are lettered for further identification and… https://www.rawpixel.com/image/8786608/image-moon-person-natureFree Image from public domain licenseAstronomy: a large aerial (tubeless) telescope, in use by an astronomer. Engraving, 1757, after Ph. de La Hire. https://www.rawpixel.com/image/13977238/image-cartoon-person-artFree Image from public domain licenseA female figure among astronomical apparatus: representing astronomy. Etching by F.D. Née after C-N. Cochin the younger… https://www.rawpixel.com/image/13982628/image-cartoon-face-peopleFree Image from public domain licenseA young woman is standing on a beach looking out to sea through a telescope which she is resting on the shoulder of a… https://www.rawpixel.com/image/14009125/image-cartoon-person-artFree Image from public domain licenseAn old man wearing spectacles and his four pupils experiment using optical instruments and materials. Line engraving by F.… https://www.rawpixel.com/image/14017108/image-cartoon-person-artFree Image from public domain licenseAstronomy: Thomas Phelps (left) and John Bartlett making astronomical observations in the observatory of the Earl of… https://www.rawpixel.com/image/14004271/image-cartoon-face-personFree Image from public domain licenseHand drawn telescope isolated on background https://www.rawpixel.com/image/411030/free-illustration-image-science-astronomy-tripod-grey-universeView licenseMen and women with telescopes, gyroscopes, a balloon, battle ships, and other forms of technology; representing the benefits… https://www.rawpixel.com/image/13971226/image-cloud-horse-cartoonFree Image from public domain licenseA young man, 'Sir Fopling Flutter' ogles women through a lens while a bailiff serves him a writ. Mezzotint, 1769, by J.… https://www.rawpixel.com/image/14000454/image-cartoon-face-personFree Image from public domain licenseAstrologia (1670 - 1724) by Jacob Gole, Jacob Gole and Staten van Holland en West Friesland https://www.rawpixel.com/image/13764572/image-paper-cartoon-faceFree Image from public domain licensePlaneten en een telescoop (1690) by Jan Luyken and Wilhelmus Goeree I https://www.rawpixel.com/image/13762661/planeten-een-telescoop-1690-jan-luyken-and-wilhelmus-goereeFree Image from public domain licenseAstronomy: a large refracting telescope, in a specially constructed observatory. Wood engraving, 1881. https://www.rawpixel.com/image/14004448/image-person-airplane-skyFree Image from public domain licenseAstronomy: a large observatory telescope at Hartwell House, with an astronomer using a transit telescope. Engraving by James… https://www.rawpixel.com/image/14001513/image-cartoon-person-artFree Image from public domain licenseA female figure among astronomical apparatus: representing astronomy. Stipple engraving, 1795, after C-N. Cochin the… https://www.rawpixel.com/image/13974138/image-cartoon-face-personFree Image from public domain licenseAstronomy: a large refracting telescope, at Birr Castle, Ireland. Lithograph by W. Bevan after Miss Henrietta M. Crompton… https://www.rawpixel.com/image/14008212/image-cloud-horse-plantFree Image from public domain licenseNavigation: the engraved titlepage to the Mariners Magazine. Engraving by T. Cross 1669 [after S. Sturmy]. https://www.rawpixel.com/image/14008277/image-stars-paper-cartoonFree Image from public domain licenseAstronomy: a large refracting telescope, at Birr Castle, Ireland. Engraving. https://www.rawpixel.com/image/13989222/astronomy-large-refracting-telescope-birr-castle-ireland-engravingFree Image from public domain licenseAstronomy: Galileo with his telescope in the Piazza San Marco, Venice. Wood engraving. https://www.rawpixel.com/image/13999927/image-dog-cartoon-personFree Image from public domain licenseAstronomy: a young astronomer in his study, talking with his sister, who holds a book in her lap. Engraving by C. Grignion… https://www.rawpixel.com/image/14003437/image-stars-cartoon-faceFree Image from public domain licenseDwarsdoorsnede van gebouw (1894 - 1933) by Philipp Bauknecht https://www.rawpixel.com/image/13774151/dwarsdoorsnede-van-gebouw-1894-1933-philipp-bauknechtFree Image from public domain licenseAstronomy: a number of ladies and gentlemen using telescopes and celestial globes, in a landscape of ruined classical… https://www.rawpixel.com/image/14008511/image-cartoon-plant-personFree Image from public domain licenseSheepshanks telescope first erected on Mount Guajara, the Peak of Teneriffe in the distance by Charles Piazzi Smyth https://www.rawpixel.com/image/14321176/image-person-art-clothingFree Image from public domain licenseAn old man wearing spectacles and his four pupils experiment using optical instruments and materials. Line engraving by F.… https://www.rawpixel.com/image/13993823/image-cartoon-person-artFree Image from public domain licenseA group of figures from antiquity are led into a garden by a woman with a telescope and a hand mirror. Etching. https://www.rawpixel.com/image/14014863/image-angels-cartoon-handFree Image from public domain licenseAstronomy: the astronomer Sidrophel, using a telescope, misidentifies a kite as a comet. Etching by W. Hogarth, ca. 1721. https://www.rawpixel.com/image/14014569/image-cartoon-face-personFree Image from public domain licenseAstronomy: telescopic and photographic equipment, set up to record the shadow of the moon. Wood engraving. https://www.rawpixel.com/image/13997824/image-cartoon-shadow-personFree Image from public domain licenseA woman looks at herself in her mirror; a man looks through a telescope; representing the sense of sight. Engraving by A.… https://www.rawpixel.com/image/13973972/image-cartoon-person-artFree Image from public domain licenseA woman having her extremely high wig (which towers over her head in an oval form and is flanked by parallel horizontal… https://www.rawpixel.com/image/14006905/image-cartoon-face-personFree Image from public domain licenseAn old man wearing spectacles and his four pupils experiment using optical instruments and materials. Line engraving by F.… https://www.rawpixel.com/image/13977113/image-cartoon-person-artFree Image from public domain licenseVlucht van Napoleon, 1815 (1815 - 1820) by Christoph Wilhelm Bock and Christoph Wilhelm Bock https://www.rawpixel.com/image/13782822/image-paper-cartoon-faceFree Image from public domain licenseGreenwich Hill, with many visitors, London in the distance. Engraving by T. A. Prior. https://www.rawpixel.com/image/14004569/image-plant-person-treeFree Image from public domain licenseAstronomy: the Great Melbourne Telescope, in use outdoors. Colour lithograph after H. Grubb. https://www.rawpixel.com/image/13998785/image-person-sky-technologyFree Image from public domain licenseScientific instruments and attributes of philosophy: gyroscopes, telescope, pestle and mortar, cosmological manuals, natural… https://www.rawpixel.com/image/13994100/image-paper-cartoon-artFree Image from public domain licenseMuted blue telescope in cute illustration https://www.rawpixel.com/image/2870263/free-illustration-image-beach-blue-cuteView licenseCaptain Cook's Statue by New South Wales Government Printing Office https://www.rawpixel.com/image/14322058/captain-cooks-statue-new-south-wales-government-printing-officeFree Image from public domain licenseAstronomy: two rococo allegorical compositions about the art and sciences, and on the stars. Engraving. https://www.rawpixel.com/image/14001915/image-stars-paper-cartoonFree Image from public domain licenseNederlands stel met telescoop en pijp (1740 - 1864) by anonymous https://www.rawpixel.com/image/13773666/nederlands-stel-met-telescoop-pijp-1740-1864-anonymousFree Image from public domain licenseMeasurement: a scholar making observations of a pendulum, with two servants, one writing at a table. Engraving by J. Basire… https://www.rawpixel.com/image/13998824/image-cartoon-person-booksFree Image from public domain licenseMuted green periscope in cartoon illustration https://www.rawpixel.com/image/2870320/free-illustration-image-cute-design-elementView licenseFive people looking through various types of spectacles.. Colour lithograph by F.S. Delpech after L.L. Boilly. https://www.rawpixel.com/image/13982875/image-cartoon-face-personFree Image from public domain licenseMr. Gray's School, Westminster: the interior. Lithograph by J. Miller. https://www.rawpixel.com/image/13991559/mr-grays-school-westminster-the-interior-lithograph-millerFree Image from public domain licenseAstronomy: an astronomer in his study, looking out of the window with a telescope. Engraving by C. Grignion after S. Wale. https://www.rawpixel.com/image/13987406/image-stars-person-booksFree Image from public domain licenseAn old man wearing spectacles and his four pupils experiment using optical instruments and materials. Line engraving by F.… https://www.rawpixel.com/image/14014370/image-cartoon-person-artFree Image from public domain licenseJean Sylvain Bailly, Mayor of Paris, with his mistress, both represented as chickens. Etching, 1791. https://www.rawpixel.com/image/13984686/image-paper-cartoon-faceFree Image from public domain licenseSignal Tower on Elk Mountain, Maryland, overlooking battlefield of Antietam by Timothy H O Sullivan and Alexander Gardner https://www.rawpixel.com/image/14326186/image-plant-person-woodFree Image from public domain licenseLondon, seen from beside Flamsteed House in Greenwich park. Lithograph by T. S. Boys after himself, 1842. https://www.rawpixel.com/image/14003538/image-frame-plant-personFree Image from public domain licenseKing George I representing royalty, a bishop representing episcopacy; and a judge representing law, all as seen through a… https://www.rawpixel.com/image/13985904/image-cartoon-person-moonFree Image from public domain license"Lalande", Statue by Jean-Joseph Perraud, Decoration of the Louvre, Paris by Édouard Baldus https://www.rawpixel.com/image/14324322/image-face-person-artFree Image from public domain licenseSecond mate of yacht observing radiation thermometers on Mount Guajara by Charles Piazzi Smyth https://www.rawpixel.com/image/14319762/image-face-hand-personFree Image from public domain licenseEpidaure, restauration & description des principaux monuments du sanctuaire d'Asclépios / relevés et restaurations par… https://www.rawpixel.com/image/14010677/image-pattern-circle-public-domainFree Image from public domain licenseOptics: a telescopic microscope, and hand-lenses. Aquatint, 1787 [by R. Laurie after Milne ]. https://www.rawpixel.com/image/14019709/image-paper-hand-public-domainFree Image from public domain licenseA Day's Deerstalking: Now for it. Here Goes. Slap, Bang by Ronald Ruthven Leslie Melville https://www.rawpixel.com/image/14321897/image-face-people-grassFree Image from public domain licenseAstronomy: a large refracting telescope, and projection of the transit of Venus. Wood engraving. https://www.rawpixel.com/image/14021664/image-cartoon-person-artFree Image from public domain licenseThe workshop of the spectacle maker and examples of his craft. Line engraving by ÆB. https://www.rawpixel.com/image/14002223/image-cartoon-person-airplaneFree Image from public domain licenseThree men looking through telescopes at young women bathing in the sea. Wood engraving. https://www.rawpixel.com/image/14003617/image-dog-horse-cartoonFree Image from public domain licenseSecond mate of yacht observing radiation thermometers on Mount Guajara by Charles Piazzi Smyth https://www.rawpixel.com/image/14315249/image-hand-person-artFree Image from public domain licenseGreenwich, with people in the foreground, London in the distance. Photo-lithograph by Dawsons after H. Dawson. https://www.rawpixel.com/image/14013738/image-dog-cloud-horseFree Image from public domain licenseSpotprent op de Hollanders (nr. 2), 1795 / 1814 (1814) by anonymous, Vallardi and anonymous https://www.rawpixel.com/image/13783417/image-paper-cartoon-faceFree Image from public domain licenseA barber's shop in which men demonstrate the sense of sight. Etching by W. Peeters after C. de Wael. https://www.rawpixel.com/image/13993290/image-dog-cartoon-personFree Image from public domain licenseAn optical experiment using a giant lens to reflect sun-rays to create fire, with optical instruments scattered and… https://www.rawpixel.com/image/13998202/image-cartoon-person-artFree Image from public domain licenseAstronomy: an observatory telescope, with an astronomer recording the transit of Venus. Engraving by James Basire. https://www.rawpixel.com/image/13991658/image-cartoon-people-artFree Image from public domain licenseA man is looking out of the window through a telescope as young children play on a rocking horse. Etching. https://www.rawpixel.com/image/13986765/image-dog-angel-horseFree Image from public domain licenseGalileo Galilei. Line engraving by P. Bettelini after T. Minardi after D. Cresti, il Passignano, 1624. https://www.rawpixel.com/image/14015516/image-face-person-artFree Image from public domain licenseGalileo Galilei (1564-1642) holding a telescope. Oil painting after Justus Sustermans. https://www.rawpixel.com/image/14000887/image-face-hand-personFree Image from public domain licenseSheepshanks telescope first erected on Mount Guajara, the Peak of Teneriffe in the distance by Charles Piazzi Smyth https://www.rawpixel.com/image/14314313/image-person-art-clothingFree Image from public domain licenseAstronomy: telescopic and photographic equipment, with a device for projecting the shadow of the moon. Wood engraving, 1875. https://www.rawpixel.com/image/13983076/image-cartoon-shadow-personFree Image from public domain licenseThose Beastly Hinds Again! by Ronald Ruthven Leslie Melville https://www.rawpixel.com/image/14323485/those-beastly-hinds-again-ronald-ruthven-leslie-melvilleFree Image from public domain license