... manyinterwoven strands of progress.In retrospect many triumphs of both classical and quantum physics seema stroke of luck: a few integrable problems, such as the harmonic oscillator and the Kepler ... successes of the theory are in statistical mechanics, quantum mechanics, and qu estions of long term stability in ce-lestial mechanics. In science popularizations too much has been made of the ... example):C. Chandre, F.K. Diakonos and P. Schmelcher, section “Discrete cy-clist relaxation method”, in P. Cvitanovi´c, R. Artuso, R. Mainieri,G. Tanner and G. Vattay, Chaos: Classical and Quantum...