The MBTA bus turned and wobbled and wheezed forward. Then it zoomed ahead and crossed onto a bridge. The driver had unwittingly gunned the accelerator, reaching 50 miles per hour. What seems like a T ...

If you've been to a magic show, or even just walked past one of those blokes who spray paint themselves gold and 'levitate' by Covent Garden, you'll know the feeling. First it's something between a ...