According to an online poll conducted by the British technology
magazine T3, the greatest invention of the past 40 years was the beer widget, the small ball filled with nitrogen that is designed to release the
carbon dioxide dissolved in a can of Guinness beer, giving it a foamy head.
The device, introduced in 1989, previously won the Queen's Award for
Technological Achievement.
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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?