How do you weigh an atom? To be honest, that's a question with plenty of problems which need answering, but one thing's certain: you need some accurate scales. Now, scientists have made a set that can measure the smallest unit of mass, the yoctogram—which is less than the mass of a single proton.
Here's a new weight loss tool that uses public humiliation to force you to lose weight. Available from Hammacher Schlemmer, the projection scale will display your current weight on the wall ... where everyone can see it.