William Lawrence Sr Omnibit 3-27-15
Farmers feed cows magnets. Magnets sit in the stomachs and attract all the small sharp metal objects cows swallow since they don’t chew. It keeps the small bits of metal from doing real damage. How do you know if a cow already has a magnet? Check it with a compass.
I remember playing with those magnets when I was a kid. Some of my schoolmates lived on farms and they’d bring them in. I remember magnets of smooth, polished steel, oblong, about 3 inches long. Pretty cool.