This article was taken from the July 2012 issue of Wired magazine. Be the first to read Wired's articles in print before they're posted online, and get your hands on loads of additional content by subscribing online.
Canadian teenagers Asad Muhammad and Mathew Ho sent a Lego minifig 24,384 metres up (near-space) using a balloon. Ho explains how.
Keep it simple
"We used a box fixed to a parachute attached to a giant weather balloon," says Ho. Order the parachute from spherachutes.com and the balloon from kaymontballoons.com. The 350g model should be fine, but a bigger balloon will last longer in the air.