Thanks to the massive success of the Beats by Dr. Dre headphones, a whole crop of celebrity-branded cans have popped up. But are they any good? Our audio-obsessive friends over at Sound+Vision have lent their finely-tuned ears to the task, reviewing en masse headphones from Bob Marley, Ludacris, Miles Davis, Justin Bieber, and the originals, the Beats by Dr. Dre. How did they stack up? Check out the review to see if they'd be a worthy accompaniment to your soon-to-be new iPhone. [Sound+Vision]
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.