Scientists solve the grass leaf conundrum

Grass is cut regularly by our mowers and grazed on by cows and sheep, yet continues to grow back. The secret to its remarkable regenerative powers lies in part in the shape of its leaves, but how that shape arises has been ...

Hollywood places biggest 3-D bet yet on 'Avatar'

(AP) -- When James Cameron directed his first 3-D film, "Terminator 2: 3-D," for Universal Studios theme parks more than a decade ago, the bulky camera equipment made some shots awkward or impossible.

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