David Hu and colleagues filmed 33 wet mammals as they shook themselves dry. Watch their slow-motion footage and find out what they learned about 'shaking frequencies'.
Deadline: Jun 30 2013
Reward: $1,000,000 USD
This is a Reduction-to-Practice Challenge that requires written documentation and&
Deadline: Jul 30 2013
Reward: $100,000 USD
The Seeker desires a method for producing pseudoephedrine products in such a way that it will be extremely difficult for clandestine che
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