The cow magnet
Stories from Physics
for 11-14
14-16
Cattle may suffer from a condition known as hardware disease caused by the ingestion of foreign bodies. The condition is often treated by encouraging the cow to swallow a cow magnet, a 7 cm rod magnet with an anti-corrosive covering. The magnet remains in the cow’s stomach and collects magnetic foreign bodies, rendering them harmless.
References
K. J. Holtgrew-Bohling, Large Animal Clinical Procedures for Veterinary Technicians, St Louis, MI, Elsevier Mosby, 2012, p. 494.
U. Hãfeli, The Mystery and History of Magnetism, In U. Hãfeli,W. Schütt, J. Teller, & M. Zborowski (eds.), Scientific and Clinical Applications of Magnetic Carriers, New York, NY Springer Science+Business Media, 1997, pp. 1-10, pp. 5-6.
