Sir, - I refer to Dr William J. Reville's letter of Wednesday (January 8th). I appreciate that Dr Reville is answering a specific question posed in Bryan F Smyth's letter and I am sure he answers it very scientifically.
I must admit that the actual workings of the atomic bomb do not mean much to me or the average person in the street. However I once visited an exhibition in California on Hiroshima and Nagasaki. One of the exhibits was particularly terrifying. It was a bunch of about five or six copper coins. They had been in a human being's pocket at the instant of the detonation. They were stuck together as surely as if they had been welded. - Yours, etc.,
19 Sheraton Park,
Foylesprings, Derry.