Acupuncture/pressure points on the back of the body (spinal pressure points). Woodcut by a Chinese artist. https://www.rawpixel.com/image/14011422/image-paper-cartoon-faceFree Image from public domain licenseHeartbeat, health icon, 3D rendering illustration https://www.rawpixel.com/image/6748251/heartbeat-health-icon-rendering-illustrationView licenseHydraulics: diagrams showing water pressure. Engraving by Mutlow, 1810, after J. Farey. https://www.rawpixel.com/image/13974394/image-paper-art-patternFree Image from public domain licenseHeart, health icon, 3D rendering illustration https://www.rawpixel.com/image/6748250/heart-health-icon-rendering-illustrationView licenseEngineering: hydrostatics, illustrations of pressure gradients. Engraving. https://www.rawpixel.com/image/14011242/engineering-hydrostatics-illustrations-pressure-gradients-engravingFree Image from public domain licenseRoos met datum 10 oktober 1947 en 25 Jahre (1947) by Isabel Wachenheimer Elon https://www.rawpixel.com/image/13754279/roos-met-datum-oktober-1947-jahre-1947-isabel-wachenheimer-elonFree Image from public domain licenseLavoisier. Apparatus for controlling oxygen under pressure. 18th C https://www.rawpixel.com/image/13981400/lavoisier-apparatus-for-controlling-oxygen-under-pressure-18thFree Image from public domain licenseHeart, health icon, 3D rendering illustration https://www.rawpixel.com/image/6748247/heart-health-icon-rendering-illustrationView licenseWheel barometer from The Colliery Manager's Handbook... Fourth Edition, Revised And Enlarged published by Crosby Lockwood &… https://www.rawpixel.com/image/572414/machine-barometer-vintage-drawingFree Image from public domain licenseIllustration of beat the clock https://www.rawpixel.com/image/727/premium-illustration-vector-aging-beat-time-minuteView license