QUANTUM
VOLUME 10, NUMBER 1, SEPTEMBER / OCTOBER 1999


FEATURES

4 Atypical Systems
Electric multipoles
by A. Dozorov

10 Equations out of Time
Ttioroughly modern Diophantus
by Y. Soloviev

16 Problematic Planets
Wtien Trojans and Oreeks collide
by I. Vorobyov

20 Polynominal Potpourri
A Cliebyshev polyplayground
by N. VasHyevandA.Zelevinsky

DEPARTMENTS

3 Brainteasers

9 How Do You Figure?

28 Kaleidoscope
Do you really know time!

30 Physics Contest
Breaking up is hard to do

35 At the Blackboard I
Alexandrian
astronomy today

38 Looking Back
The great law

42 In the Lab
An unsinkahle disk

44 At the Blackboard II
Physical optics
and two camels

4B Crisscross Science

50 Happenings
Bulletin Board

51 Answers, Hints ,Solutions

55 Cowculations
out to pasture

57 Index of Advertisers