Since 2007 ig nobel, I thought it was a solved problem: http://www.nature.com/news/2007/070521/full/news070521-1.html http://www.nature.com/news/2007/070521/ful

Since 2007 ig nobel, I thought it was a solved problem: http://www.nature.com/news/2007/070521/full/news070521-1.html http://www.nature.com/news/2007/070521/full/news070521-1.htm... ;-)