Life is a matter of perspective, as this picture will testify. It's from the Science Museum which is one of the best free days out you can encounter. Just imagine a £100M treasure trove packed with hi-tech games and adventure, and you get the whole place to yourself, from time to time.
This one's from a bit earlier in the year, as I've been looking for some images from the archive that needed airing. Lewis as you'll notice is rolling the ball downhill, Mummy pushing it back up the hill!