24.7 MB (9.7 MB compressed)
3691 x 2337 pixels
31.2 x 19.8 cm ⏐ 12.3 x 7.8 in (300dpi)
PHIL DEGGINGER / SCIENCE PHOTO LIBRARY PHIL DEGGINGER / SCIENCE PHOTO LIBRARY
Bar magnet showing 3-D magnetic field with iron filings. The magnetic field induces magnetism in each of the filings, which then line up in the field. Although the field is actually continuous, interactions between the filings cause them to accumulate in thin arcing lines.
Model release not required. Property release not required.