According to this month's Wired magazine, speed enthusiast and self-described "inventrapreneur" Brian Walker is planning on shooting himself into space (or at least 20 miles into the atmosphere) via an enormous home-made crossbow. The plan is simply to "stretch a carbon-fiber bowstring 24 feet along a rail, fire up a jet turbine with 1,350 pounds of thrust, hit a trigger and pull 10 G's." Easier said than done, of course. Aside from catapulting himself, Walker is also... READ ON