Wednesday 18 April 2007, 7:00 p.m.
Royal Institution,
Royal College of Surgeons of England, 35-43 Lincoln's Inn Fields, London.
Monday 9 April 2007, 6:00 p.m.
Edinburgh Science Festival,
National Museum of Scotland, Chambers Street.
Saturday 30 September 2006, 3:00 p.m.
Garcia Street Books,
376 Garcia Street, Santa Fe, New Mexico.
Monday 2 October 2006, 7:00 p.m.
Café Scientifique at Bar Pilar
1833 14th Street NW (between S & T Streets), Washington DC.