The Feuerbach Theorem
by V. Protasov
Exploring the inscribed and escribed circles of triangles.
On the Quantum Nature of Heat
by V. Mityugov
Finding direction in chaos.
Carl Friedrich Gauss
by S. Gindikin
A portrait of a "prince of mathematicians."
Physics Contest: A Question of Complexity
by Larry D. Kirkpatrick and Arthur Eisenkraft
Getting to simplicity in physics problems.
Kaleidoscope: Returning to a Former State
by A. Savin
Rubik's Cube redux.
At the Blackboard I: Selecting the Best Alternative
by V. Gutenmakher and Zh. Rabbot
"Mathematical programming" and business management.
At the Blackboard II: Obtaining Symmetric Inequalities
by S. Dvoryaninov and E. Yasinovyi
Muirhead's theorem and Young diagrams.
In the Lab: Heating Water from the Top
by V. Pentegov
Results from a topsy-turvy approach.
Commentary: The Toy that Drove the Universe
by Jef Raskin
Following up on A. Kuzin's article in the January/February 1999 issue.
How Do You Figure?: Challenges in Physics and Math
Brainteasers: Just for the Fun of It!
Check out this sample!
Scientific crossword puzzle.
Report on the XXX International Physics Olympiad, Bulletin Board.
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