MISTS and mellow fruitfulness are the marks of this season in northern latitudes, so clear the mists from your mind and start feeling fruitful because the time has come to announce the Feedback end-of-year competition.
Our theme this year is time travel. When the Large Hadron Collider at CERN was about to go into operation, some physicists speculated that it might attract visitors from the future (Â鶹´«Ã½, 9 February, p 32, and Feedback, 5 April). For our competition, we ask you to imagine three such visitors arriving, each bringing glad tidings and bearing a gift…
