https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13965222Edit ImageSaveSaveEditCropCustom TextHydraulics: six different kinds of waterwheel, used for lifting weights. Engraving c.1861.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 810 x 1200 px | 300 dpiLarge JPEG 1674 x 2480 px | 300 dpiFree DownloadHydraulics: six different kinds of waterwheel, used for lifting weights. Engraving c.1861.More