Sigfus Johnsen at 70

摘要

Sigfus Johnsen: ice physicist, ice core scientist, 'drill master', friend and colleague, was 70 years old on 27 April 2010. So how do you celebrate the 70th birthday of one of the pioneers in a scientific field? Sigfus's Icelandic and Danish colleagues had a great plan. First you invite all his colleagues to a symposium in his honour in Iceland just before his birthday. They will all want to come, they will make their travel plans and prepare their talks. Then you arrange a giant firework display as a national celebration, in the form of the eruption of Eyjafjallajokull. This seems like a great idea, until international airspace is closed, and you have to rearrange the whole thing!