Contents of the March/April 1997 issue of Quantum
Desperately Seeking Susan on a Cylinder
by A. Chkhartishvili and E. Shikin
A geometric approach to problems of search and detection.
Whistling in Space
by Pavel Bliokh
Its not an idle pastimeits a phenomenon that allows us to study the near-Earth region without leaving the ground.
Squaring the Hyperbola
by Andrey Yegorov
This article takes a different approach to the exponential function: it starts with a definition of the logarithm and then proceeds to its inverse function: the exponent.
Kaleidoscope: Volumes without Integrals
by I. F. Sharygin
Applications of a principle formulated by Francesco Bonaventura Cavalieri in 1629.
Physics Contest: Mars or Bust!
by Arthur Eisenkraft and Larry D. Kirkpatrick
In honor of the Mars Global Surveyor (launched November 7, 1996 and due to reach the Red Planet on September 12, 1997), a set of problems on a Martian theme.
Cowculations: Bottling Milk
by Dr. Mu
The challenge of finding an efficient algorithm for distributing milk among bottles of varying sizes.
At the Blackboard I: A Planetary Air Brake
by D. C. Agrawal and V. J. Menon
Determining how much viscous drag from the atmosphere slows the Earths rotation.
Looking Back: The Long Road to Longitude
by A. A. Mikhailov
A historical look at the problem of longitude and how to determine it.
At the Blackboard II: Three Physicists and One Log
by Roman Vinokur
When three friends carry a log, who bears the brunt and who gets off easy?
Math Investigations: The Equalizer of a Triangle
by George Berzsenyi
Questions related to a special line that divides a triangle into two parts with equal perimeters and equal areas.
In the Lab: Stirring up Bubbles
by T. Polyakova, V. Zablotsky, and O. Tsyganenko
Something curious happens when you stir a boiling liquid under certain conditions ...
How Do You Figure?: Challenges in Physics and Math
Brainteasers: Just for the Fun of It!
The Quantum Bulletin Board.
Scientific crossword puzzle.
Answers, Hints & Solutions
Copyright © 1997 National
Science Teachers Association