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It has been 20 years since the fall of the Berlin Wall. In the wake of the upheaval, the East German society was radically remodelled. For physicists, it brought new opportunities — and fresh challenges.
Peer review is the cornerstone of scientific publishing. But it isn't always clear exactly what Nature Physics expects of its referees — let us explain.
The 2009 Nobel Prize in Physics has been awarded to Charles K. Kao for the development of optical fibres for telecommunications, and to Willard S. Boyle and George E. Smith for the invention of charge-coupled device sensors.