World's Largest Crossbow Edit

Propel Yourself Into Space
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There is no subtle way to say this: Brian Walker plans to shoot himself nearly 20 miles into the air aboard a homemade rocket launched from what could be the world’s largest crossbow. (Seriously.)

This isn’t Walker’s first outlandish invention. He’s responsible for the “light chaser” whirly toy, a 300-gallon water-balloon launcher (for putting out forest fires – still in prototype), and Taser gloves (featured in “Garage Geniuses Go Prime Time,” issue 14.03). But Project RUSH – for “rapid up superhigh” – is hands down his most preposterously dangerous effort. “I missed out on the opportunity to be the first private citizen to fly to the edge of space in a private rocket, so I decided to do something even more fun,” Walker says.  (Wired)