From the Red Queen's chessboard in Alice in Wonderland to Harry Potter's Wizard's Chess, chess is amazingly popular for a game that takes up less space than a mahjong table. It helps to know the moves. Rather than feel like a dolt, this rollable USB Chessboard lets you practise and master the game on your own. We certainly like that it plugs right into a USB port, with software that helps you see a virtual representation of the game in progress, even giving hints as what the next best move should be. You'll never be a Garry Kasparov, but at least you won't have to put up with chess, ah, jests that go: "I was having dinner with Garry Kasporov and on the table was a checkered tablecloth. It took him 2 hours to pass me the salt." Doh.
For more than two years, Terry Lovejoy of Queensland, Australia, has been chasing comets with his digital camera--and last month he caught one. Using a Canon 350D with a zoom lens set to 200-mm focal length at f/2.8, Lovejoy spotted, in exposures of 90 seconds, a green comet that now carries his name. This was the first first-time sighting of a comet using a digital camera.
Comet Lovejoy reached its closest approach to the sun on March 27 and will become visible in the Northern Hemisphere next week. Unfortunately, it won't be visible to the naked eye, but it can probably be seen with binoculars or a small telescope. Here's where to look.