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## Erica Klarreich's Articles

- News
## Spheres in Disguise: Solid proof offered for famous conjecture

A Russian mathematician has proposed a proof of the Poincaré conjecture, a question about the shapes of three-dimensional spaces. - Feature
## Digital Cells

Researchers are gearing up to create cells with computer programs hardwired into the DNA. - News
## Prime Finding: Mathematicians mind the gap

Mathematicians have taken a significant step toward proving the twin-prime conjecture by simplifying formulas for estimating the average spacing of primes. - Feature
## Knotty Calculations

An alternative approach to quantum computing takes advantage of space-time knots and braids. - Feature
## Election Selection

By ignoring how voters might rank all the candidates in an election, the plurality system opens the floodgates to unsettling, paradoxical results when there are three or more candidates.