We've seen a few hybrid tablet stylus/ballpoint pens kicking around, but the Polar Pen, with its barrel made out of rare earth magnets, takes the absolute biscuit. Michelle Starr Science editor ...

Walk into any college lecture hall, and you’ll see a sea of laptops clicking away, accompanied by the occasional frantic scribble of a ballpoint. But every now and then, you’ll spot a glint of metal ...