When an external magnetic field is applied to a material, these current loops tend to align in such a way as to oppose the applied field. This causes all materials to be repelled by a permanent magnet; however, the resulting force is usually too weak to be noticeable.
Sources of E. coli. E. coli O157:H7 is most commonly found in cows, although chickens, deer, sheep, and pigs have also been known to carry it. Meat becomes contaminated during slaughter, when infected animal intestines or feces come in contact with the carcass.
E. Coli   Escherichia coli, usually abbreviated to E. coli, (coli is latin for of the colon) discovered by Theodor Escherich, a German pediatrician and bacteriologist, i â¦ s one of the main species of bacteria that live in the lower intestines of mammals, known as gut flora.. Coli   Escherichia coli, usually abbreviated to E. coli, (coli is latin for of the colon) discovered by Theodor Escherich, a German pediatrician and bacteriologist, i â¦ s one of the main species of bacteria that live in the lower intestines of mammals, known as gut flora.