https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13975854Edit ImageSaveSaveEditCropCustom TextÉtienne-Louis Malus. Stipple engraving by A. Tardieu.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 784 x 1200 px | 300 dpiLarge JPEG 2244 x 3434 px | 300 dpiFree DownloadÉtienne-Louis Malus. Stipple engraving by A. Tardieu.More