Oct 16, 2012 | 1
Israeli entrepreneurs say they're about to take the cycling world by storm with their new bicycle made of recycled cardboard. Each bike costs less than $10 to produce.
Deadline: Jun 30 2013
Reward: $1,000,000 USD
This is a Reduction-to-Practice Challenge that requires written documentation and&
Deadline: Jul 15 2013
Reward: $5,000 USD
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