https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13996829Edit ImageSaveSaveEditCropCustom TextSir Isaac Newton showing an optical experiment to an audience in his laboratory. Wood engraving by Martin after C. Laverie.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 803 px | 300 dpiLarge JPEG 3331 x 2228 px | 300 dpiFree DownloadSir Isaac Newton showing an optical experiment to an audience in his laboratory. Wood engraving by Martin after C. Laverie.More