Angry Birds, one of the most popular mobile games, is pretty simple: you use a slingshot to fling outraged birds at the fortresses of greedy green pigs. So why do we play for hours on end? SA's Ferris Jabr takes a look from the inside out.
Deadline: Jan 11 2014
Reward: $20,000 USD
Conventional washing machines cause excessive damage and wrinkling to clothes primarily during the water removal step. With the introduc
Deadline: Jan 27 2014
Reward: $15,000 USD
The Dow Chemical Company is the leading producer of polyalkylene glycols (PAGs) used in synthetic fluids and lubricants where petroleum,
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