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Submission + - Rubic's Cube Solved in 26 Moves

i_like_spam writes: Of the roughly 43 quintillion possible arrangements in a Rubic's Cube, a computer scientist at Northeastern University has developed a new algorithm that solves the cube in 26 moves. The results were presented at last month's International Symposium on Symbolic and Algebraic Computation. This beats the previous record of 27 moves set last year by researchers from the Lund Institute of Technology.

Submission + - Google Changes Background Color To Save Energy 6

i_like_spam writes: Commentary at Nature Climate Change describes an on-going debate about the energy savings associated with the background colors used by high-traffic websites such as Google and the NYTimes. Some back of the envelope calculations have suggested energy savings of 750 Megawatt hours per year if Google switched their background from white to black. Google responded by creating Blackle. Other calculations by the Wall Street Journal, however, suggest minimal energy savings. Who is right in this debate? And, should designers also consider potential energy savings when choosing colors for their websites?

I have a theory that it's impossible to prove anything, but I can't prove it.