Chances are you've played Rock, Paper, Scissors, but how do you calculate your strategy, if you have one at all? In Rock, Paper, Scissors: Game Theory in Everyday Life, physicist Len Fisher points out that putting yourself in your opponent's mindset is a key to success in the game.
Clamber down a bunk bed ladder in the black of night at your own risk, says a large new study of the double-decker berths: falls, head entrapment, strangulation, and even ceiling fan entanglement may await.
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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?