Scientists use trout to unlock the secrets of magnetic cells

This trout looks guilty for a reason. It's hiding one of nature's most intriguing mysteries: the secret of magnetoception. For decades, behavioral experiments have suggested that a variety of animals possess this ability to sense — and navigate by — the Earth's magnetic fields, but identifying what, exactly, endows… » 7/10/12 8:30am 7/10/12 8:30am

Scientists learn the secret of a famous anti-superconductor

Magnetite is, as its name implies, one of the most naturally magnetic materials on earth. Millennia ago, it was what first clued scientists in to magnetism. But magnetite is also something of a mystery. At low temperatures, the rock completely stops all electricity. At last scientists have figured it out why. » 12/23/11 7:20am 12/23/11 7:20am