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Contents of the January/February 1999 issue of Quantum 


Feature articles

Satellite aerodynamic paradox

by A. Mitrofanov

Examining the forces affecting objects in near-Earth orbits.

Satellites
Art by Pavel Chernusky

The anthropic principle

by A. Kuzin

A key to deciphering the Universe?


Prime time

by G. A. Galperin

These numerical oddities exhibit a lack of factors.


As easy as (a, b, c)?

by S. M. Voronin and A. G. Kulagin

Searching for Pythagorean triples.


Departments

Physics Contest: Sportin’ life

by Larry D. Kirkpatrick and Arthur Eisenkraft

Analyzing the trajectories of a basketball or a broad jumper can help us appreciate athletics.


In the Lab: Cold boiling

by S. Krotov and A. Chernoutsan

Can we boil water by cooling it?


At the Blackboard I: The problem of eight points

by N. B. Vasiliev

Sometimes a problem with a simple statement has a complicated solution.


At the Blackboard II: Another perpetual motion project?

by A. Stasenko

Can the proposed device truly be considered a perpetual motion device? Judge for yourself.


Looking Back: Bohr’s quantum leap

by A. Korzhuyev

Revisiting the early days of quantum theory.


Musings: The Lorentz/FitzGerald diet

by David Arns

A poem.


Cowculations: Hula hoop

by Dr. Mu

Dr. Mu takes a Hawaiian vacation, gyrates on Waki-Kowa Beach, and poses a Mathematica animation problem.


How Do You Figure?: Challenges in Physics and Math


Brainteasers: Just for the Fun of It!

Check out this sample!


Crisscross Science

Scientific crossword puzzle.


Happenings

Bulletin Board.


Answers, Hints & Solutions


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