Could a ball made of bamboo and biodegradable plastic detonate deadly landmines? Afghan designer Massoud Hassani says his device can do just that, despite the scepticism of some experts.
Deadline: Jul 15 2013
Reward: $5,000 USD
SciBX: Science-Business eXchange, a joint publication from the makers
Deadline: Jul 14 2013
Reward: $1,000,000 USD
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