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Science is reinventing play, from extreme sports to gamification to ridiculous roller coasters to the playgrounds of tomorrow, and this issue is chock full of fun. Also, on a less fun note: Did global warming destroy my hometown?
At least others are doing the plug-in conversion on the prius. A123 and a few others. Plug in supply now have a system that can go up to 50 mph and stay all electric, even a 10Kw lithium battery option for about 40 miles all electric. At 15K it's better than GM or Toyota will offer.
With the economy the way it is no one is buying much of anything. That looks like it will change soon. As soon as gas spiker higher with summer demand it will be a new day.