If you answered "one of Santa's reindeer" and "a popular video game from the '80s"--this episode of Instant Egghead is for you. Scientific American editor John Matson explains how our favorite space rocks differ.
Deadline: Jun 29 2013
Reward: $7,000 USD
The Seeker for this Challenge desires proposals for chemical methods that could rapidly degrade a dilute aqueous solution
Deadline: Jul 25 2013
This challenge provides an opportunity for Solvers to build a web-based or mobile “app” to explore data relationships in scholarly conte
Save 66% off the cover price and get a free gift!
Learn More >>X