https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13965909Edit ImageSaveSaveEditCropCustom TextMagnetism: electrical equipment and magnetic phenomena. Coloured engraving by J. Emslie, 1850.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 958 x 1200 px | 300 dpiLarge JPEG 1612 x 2020 px | 300 dpiFree DownloadMagnetism: electrical equipment and magnetic phenomena. Coloured engraving by J. Emslie, 1850.More