Fossil fuels such as oil come from, well, fossils—organisms that died long ago. This means there is a limited supply, and at some point we'll be tapped out. Scientific American editor David Biello explains when the well may run dry.
Deadline: Aug 31 2013
Reward: $100,000 USD
The Geoffrey Beene Foundation Alzheimer’s Initiative (GBFAI) is launching the 2013 Geoffrey Beene Global NeuroDiscovery Challenge whose
Deadline: Jul 15 2013
Reward: $5,000 USD
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