Balance hydrostatic illustration vector https://www.rawpixel.com/image/572763/scientific-apparatus-vintage-drawingView licensePNG Drawing of a balance hydrostatic, transparent background https://www.rawpixel.com/image/571871/png-drawing-balance-hydrostatic-transparent-backgroundView licenseBalance hydrostatic from Six Weeks Vacation by Paul Poire (1880). Original from the British Library. Digitally enhanced by… https://www.rawpixel.com/image/572601/scientific-apparatus-vintage-drawingFree Image from public domain licenseDensity tool from Six weeks of vacation (1880) published by Paul Poiré. Original from the British Library. Digitally… https://www.rawpixel.com/image/571620/density-scientific-equipmentFree Image from public domain licenseEggs in salted water and in pure water from Six Weeks Of Vacation (1880) published by Paul Poiré. 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Emslie, 1850, after himself. https://www.rawpixel.com/image/13966650/image-person-art-waterFree Image from public domain licenseMan looking in a telescope silhouette illustration vector https://www.rawpixel.com/image/573425/man-using-telescope-silhouetteView licenseEggs in salted water and in pure water illustration vector https://www.rawpixel.com/image/573422/egg-test-scientific-experimentView licensePNG Drawing of a balancing tool, transparent background https://www.rawpixel.com/image/572324/png-drawing-balancing-tool-transparent-backgroundView licenseDrawing of the Mouchot Apparatus https://www.rawpixel.com/image/571367/solar-generator-vintage-styleView licenseA sphygmograph: an instrument (also known as a 'pulsometer') for recording graphically the features of the pulse and… https://www.rawpixel.com/image/13957196/image-paper-cartoon-artFree Image from public domain licenseA sphygmograph: an instrument (also known as a 'pulsometer') for recording graphically the features of the pulse and… https://www.rawpixel.com/image/13954546/image-paper-cartoon-handFree 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 licenseSir Isaac Newton showing an optical experiment to an audience in his laboratory. Wood engraving by Martin after C. Laverie. https://www.rawpixel.com/image/13996829/image-person-art-clothingFree Image from public domain licenseLaboratory flask with yellow solution graphic illustration https://www.rawpixel.com/image/429421/free-illustration-vector-chemistry-white-lab-glass-measuringView 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 licenseAn old man wearing spectacles and his four pupils experiment using optical instruments and materials. 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Coloured wood engraving. https://www.rawpixel.com/image/13959256/image-paper-cartoon-personFree Image from public domain licenseElectricity: four figures illustrating electrical apparatus and experiments. Engraving by W. Lowry, after J. Farey, 1818. https://www.rawpixel.com/image/13975738/image-paper-cartoon-personFree Image from public domain licenseGalvanism: 25 figures illustrating experiments and instruments, including the galvanism of a frog's legs and a cow's head… https://www.rawpixel.com/image/13999060/image-paper-cartoon-cowsFree Image from public domain licenseLaboratory png sticker illustration, transparent background. Free public domain CC0 image. https://www.rawpixel.com/image/6820635/png-sticker-vintageFree PNG from public domain licenseAquatic creature illustration vector https://www.rawpixel.com/image/573261/aquatic-creature-vintage-styleView licenseMachell's pump for extracting fluids. 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Free public domain CC0 image. https://www.rawpixel.com/image/6266168/vector-vintage-public-domain-artFree Vector from public domain licenseChemistry science experiment illustration, vintage education drawing. Free public domain CC0 image. https://www.rawpixel.com/image/6266072/image-vintage-public-domain-artFree Image from public domain licenseA chemist holds up a flask to show his young assistant. 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