Here we have a fun and frustrating little game that exploits our engineering skills. How to build a stable bridge is what this game is all about. At each level of the game you're given a limited amount of imaginary cash with which to purchase your beams and supports. It's usually just enough to get the job done, if you do it right. Which isn't so easy.
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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?