Material World - 18/11/2010

Quentin Cooper presents this week's digest of science in and behind the headlines. In this edition: the development of disease resistant crops the better to feed our swelling population; trapping anti-hydrogen atoms to unravel one of the great mysteries in physics; and exhuming the body of Danish astronomer Tycho Brahe to find out whether he really died of a bladder infection. The producer is Roland Pease.