49.8 MB (6.0 MB compressed)
3401 x 5120 pixels
28.7 x 43.4 cm ⏐ 11.3 x 17.1 in (300dpi)
CHARLES D. WINTERS / SCIENCE SOURCE / SCIENCE PHOTO LIBRARY CHARLES D. WINTERS / SCIENCE SOURCE / SCIENCE PHOTO LIBRARY
A magnet is used to separate iron filings from sand. Sand is not attracted to the magnet but the iron filing are pulled out due to the magnetism. This image is before the filing have been attracted to the magnet.
Model release not required. Property release not required.