Surely you've sat high in the stands at a stadium or, at least, while watching TV, looked down by way of the blimp camera and wondered how they managed to get the grass to take on those festive patterns of light-and-dark strips. Sometimes the field looks as if it's striped in alternating shades of light- and dark-green grass, and if you're lucky, you've seen a game played on a really elaborate plaid, sunburst or... More >>>