The Geometric Universe. Science, Geometry and the Work of Roger Penrose Edited by S.A. Huggett and others. Oxford University Press 1998 [ISBN 0198500599]. Proceedings of the five day symposium Geometric Issues in the Foundations of Science held in Oxford in June 1996 to honor Professor Sir RogerPenrose in his 65th year.
There are certainly many more fiendish equations than in Penrose's populist books, mostly covering the many outworkings of twistors in pure maths and physics. Twistors were conceived by Penrose in the 1960s as a mathematical foundation for the much sought after unification of GeneralRelativity and QuantumMechanics. StuartHameroff and Abner Shimony also delve briefly into the biological and philosophical implications of Penrose's speculations on time and the human mind.
Some pretty inspiring things are said about Penrose's contribution to people and ideas in modern mathematics and physics by a number of first rate thinkers, including John Wheeler of Princeton, StephenHawking and MichaelAtiyah. Atiyah summarizes Penrose's contribution as follows:
Where is the above from?
From the book TheGeometricUniverse, strangely enough. -- RichardDrake