Physics has always influenced other fields, from the mirrors of
Archimedes which were supposed to ignite the sails of enemy warships, to
the hydrogen bombs which could destroy Sao Paulo and Dusseldorf. More
recently, (com- putational) statistical physics has been applied to
biology, economics, world politics, etc. This book presents some
examples in this direction to explain these methods. We do not claim to
present a textbook of biology, or a so- lution of economic problems; we
merely explain how physicists like us did it, in order to encourage
others to try similar interdisciplinary work. The theo- ries presented
here may not be the best ones for the problems but should be the ones
closest to statistical physics methods. In most fields we give only the
general idea to guide the reader to the original literature; for the
Penna model of biological ageing we try to give a more complete
overview, including computer programs, so that readers can start their
own research immediately in this field. The selection of material
follows our own experience, and even with these selected applications we
would appreciate if readers would inform us about overlooked literature.
We prove our ignorance, if we do not cite impor- tant papers. We thank
many people, in particular M. Azbel, A. T. Bernardes, S. Dasgupta, S.
Galam, H. J. Herrmann, N. Jan, H. Milbrodt, T. J. P. Penna, S. Solomon,
D. Sornette, Y. C. Zhang and R.