Contents of the November/December 1998 issue of Quantum
Lattices and Brillouin Zones
by A. B. Goncharov
Geometrical by nature, the study of lattices has its roots in the physics of crystals.
Wave on a Car Tire
by L. Grodko
Does the engine limit the maximum speed of a car?
Functional Equations and Groups
by Y. S. Brodsky and A. K. Slipenko
Solving functional equations using one of the most important concepts of modern mathematics: the group.
Physics Contest: Warp Speed
by Larry D. Kirkpatrick and Arthur Eisenkraft
What is happening when objects appear to be breaking the universal speed limit, the speed of light?
At the Blackboard I: The Steiner-Lehmus Theorem
by I. F. Sharygin
If two _____ of a triangle are ______ , then the triangle is ______ .
At the Blackboard II: Errors in Geometrical Proofs
by S. L. Tabachnikov
The elusive nature of flaws in geometric reasoning.
At the Blackboard III: Hurling at the Abyss
by A. Stasenko
An errant knight, a pile of stones, a swinging platform, and a lady in waiting.
In the Lab: Why is a Burnt Match Bent?
by V. Milman
An exploration of the tendency of matches to curl up by a warm fire.
Looking Back: The Quantum Nature of Light
by D. Sviridov and R. Svirodova
How researchers devised an experiment to observe the discreteness of light with the human eye.
Gradus ad Parnassum: Completing the Square
by Mark Saul and Titu Andreescu
Circumventing a quadratic-equation trap that often ensnares beginning teachers.
Musings: I Can See Clearly Now
by David Arns
by Dr. Mu
Our bovine computer enthusiast taxes his CPU with the task of translating digitized ostrich utterances.
How Do You Figure?: Challenges in Physics and Math
Brainteasers: Just for the Fun of It!
Scientific crossword puzzle.
Answers, Hints & Solutions
Copyright © 1998 National Science Teachers