We tested two new night-vision systems that are available in the top-of-the-line Mercedes Benz S550 and BMW 7-Series luxury sedans. They operate on virtually opposite principles-Mercedes illuminates the environment with projected infrared light; BMW detects thermal energy emitted from objects-and each works well under different circumstances.
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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?