For some time we have had the ability to manufacture huge lenses. We also have computers and software that could make this idea happen. For a prototype, why not construct a large glass lens maybe 12 feet in diameter. Mount it about 30-50 feet above the ground. The base would be round and by computer be able to move round and up and down; tracking the sun 365 days of the year. The intense heat created by this large magnifying glass could be focused on some hybrid turbine and or steam...

Don't you hate sites with pop-up ads every three seconds and if your pop-up killer doesn't get them all you race to see how many you can close - only to have more pop up?! Instead of having pop up killer programs, how about a search engine like Google add an extra option or feature to their advanced search. The bots could tell which sites have more than one or two pop-ups and put them in the idiot webmasters category. Some people don't get the idea that annoying advertising is bad...