The 2006 Ig Nobel prizes have been announced in the USA.link Some of the winners included…

Maths: How many photos must be taken to almost ensure no-one in a group shot has their eyes closed, by Nic Svenson and Piers Barnes

Ornithology: Why woodpeckers do not get headaches, by Ivan Schwab and the late Philip RA May

Nutrition: Why dung beetles are fussy eaters, by Wasmia al-Houty and Faten al-Mussalam

Acoustics: Why the sound of fingernails scraping on blackboards is so annoying, by D Lynn Halpern, Randolph Blake and James Hillenbrand

Medicine: The Termination of Intractable Hiccups with Digital Rectal Massage, by Francis Fesmire, Majed Odeh, Harry Bassan and Arie Oliven.