https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13981007Edit ImageSaveSaveEditCropCustom TextClocks: diagrams of the motions of composite pendulums. Engraving by Mutlow.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 772 x 1200 px | 300 dpiLarge JPEG 1436 x 2232 px | 300 dpiFree DownloadClocks: diagrams of the motions of composite pendulums. Engraving by Mutlow.More