https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/14014749Edit ImageSaveSaveEditCropCustom TextMechanics: Atwood's machine with pulleys and calibrated dials, for measuring force. Engraving, after 1861.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 768 x 1200 px | 300 dpiLarge JPEG 1316 x 2056 px | 300 dpiFree DownloadMechanics: Atwood's machine with pulleys and calibrated dials, for measuring force. Engraving, after 1861.More