https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13960478Edit ImageSaveSaveEditCropCustom TextClocks: two composite pendulums, and diagrams of their motions. Coloured engraving by J. Pass, 1809.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 894 x 1200 px | 300 dpiLarge JPEG 1476 x 1981 px | 300 dpiFree DownloadClocks: two composite pendulums, and diagrams of their motions. Coloured engraving by J. Pass, 1809.More