Elected F.R.S. 1990
On Tuesday 27 October 1992 David Bohm died of a heart attack while returning home from College, where we had been discussing the final details of our book The Undivided Universe (90).* We had been colleagues since joining Birkbeck College over 30 years ago and we spent many hours discussing a wide range of topics and writing many papers together. I will never forget those exciting and stimulating meetings. He would never spend any time on ordinary conversation, but he would immediately pick up on what we had been discussing the previous day and there would be no let–up in the discussion that followed until it was time to lecture or to go home. It was exhausting but it was exhilarating. What follows is an account of a radical independent thinker who made important contributions to physics yet had the courage to challenge the orthodoxy long before people realized there was a real problem. I hope that my personal involvment in his later work does not cloud the objectivity of this Memoir too much.