Is Bingo Fair?
by Mark Krosky
Can an understanding of the probabilities involved in Bingo be used to gain an
Tied into Knot Theory
by O. Viro
When mathematicians try to study an everyday phenomenon, they usually replace it with a
convenient mathematical object. Ordinary knots, made of rope, have shared this fate.
by V. Novoseltsev
An examination of halos, sun dogs, and other atmospheric optical phenomena.
Extraordinary cases of these events may help explain certain historical
visions and unidentified objects.
Gradus Ad Parnassum: Symmetry, Part II
by Mark Saul and Titu Andreescu
A second look at symmetry in algebra, with particular attention paid to polynomials and
Kaleidoscope: The Nature of an Ideal Gas
by A. Leonovich
Test your knowledge of ideal gas behavior and learn such interesting tidbits as who
coined the word gas.
Looking Back: Light Pressure
by S. V. Gryslov
The history of attempts to measure the pressure light exerts on objects.
Physics Contest: Depth of Knowledge
by Larry D. Kirkpatrick and Arthur Eisenkraft
A look at the importance of air resistance, with a gentle admonishment not to strap
a bramble bush of outdoor gear to the roof of your car.
At the Blackboard I: Mathematical Relay Races
by Don Barry
Teamwork adds excitement and anxiety to a math competition-turned-relay-race. Are you
At the Blackboard II: Homogeneous Equations
by L. Ryzhkov and Y. Ionin
Examples of what mathematicians call homogeneous equations abound in high school
mathematics. But just what exactly is a homogeneous equation?
Cowculations: Come, Bossy
by Dr. Mu
Help Bud, the family dog, round up the cows more efficiently.
In the Lab: Amusing Electrolysis
by N. Paravyan
Use this simple setup to probe some lesser-known aspects of electrolysis.
How Do You Figure?: Challenges in Physics and Math
Brainteasers: Just for the Fun of It!
Check out this sample!
Scientific crossword puzzle.
Answers, Hints & Solutions
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