Productive Product: What's the difference between speeding and not turning light offs when you leave a room? When you speed, there are cops and signs to remind you. But when you leave the lights on, or your computers, TVs, and other gadgets, the power they waste just disappears into a lump-sum electricity bill. That's why an alliance of UK energy companies is devisising "smart meter" technology that will display simple telemetry as it counts the watt-hours. A trial period will include 8,000 homes. Read more  at the Reuters site.