The rise of magnets – from surgery to outer space

Permanent magnets, the kind that keep colourful souvenirs stuck to the door of your fridge, might seem a fairly mature, well-established technology. They've been used for centuries, after all. And yet, today, researchers and companies are expending huge efforts on making magnets more powerful and efficient than ever before. BBC - For more and to sign up click here To Return to the Main Aggregate News Page - click…