A 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 licenseWood deck floor cleaning outdoors smoke architecture. AI generated Image by rawpixel. https://www.rawpixel.com/image/12882682/photo-image-person-fire-smokeView licenseCleaning congrete floor adult architecture cleanliness. https://www.rawpixel.com/image/13224641/cleaning-congrete-floor-adult-architecture-cleanlinessView licensePascal's experiment in the Puy de Dôme to test the relation between atmospheric pressure and altitude. Oil painting by… https://www.rawpixel.com/image/13963372/image-person-art-clothingFree Image from public domain licenseTracks for Army halftracs cars, made of rubber firmly bonded to steel members, are cured under heat and pressure in tracks… https://www.rawpixel.com/image/12307026/image-plant-hand-personFree Image from public domain licenseHydraulics: diagrams of water pressure and capillary action. Engraving by W. Lowry, 1806. https://www.rawpixel.com/image/13990221/image-paper-water-public-domainFree Image from public domain license