[ Information | Background | The CyberTeaser | Quantum News | Miscellaneous Stuff ] Contents of the July/August 1997 issue of QuantumFeature articlesColder Means Slowerby Henry D. SchreiberThe elegant and wide-ranging Arrhenius equation tells us how much slower. All Sorts of Sortingby P. Blekher and M. KelbertAn introduction to the comparatively young science of pattern recognition theory—specifically, a look at various classification methods. Can You See the Magnetic Field?by Alexander MitrofanovHow to use your TV in a new and enlightening way.
DepartmentsKaleidoscope: The Complete Quadrilateralby I. F. SharyginIt’s a figure formed by four straight lines on the plane none of which are parallel and no three of which pass through the same point. This article examines some interesting properties of complete quadrilaterals. Physics Contest: A Physics Souffléby Arthur Eisenkraft and Larry D. KirkpatrickIn physics as in cooking, you can have too much of a good thing. When is a piece of information crucial, and when can you get by without it? Math Investigations: Counting Problems in Finite Groupsby George BerzsenyiIn his last column for Quantum, Dr. Berzsenyi presents a problem from the Research Experiences for Undergraduates program. At the Blackboard I: Whirlwinds over the Runwayby Albert StasenkoA look at the vortices created by large planes near the ground. Cowculations: Out Standing in the Fieldby Dr. MuHow to divvy up the championship purse in a storm-shortened season of baseball: the Holsteins vs. the Jerseys. At the Blackboard II: Remarkable Limitsby M. Crane and A. NudelmanTwo sequences created by two different types of means (arithmetic, geometric, or harmonic)—repeatedly taking the means of the means obtained—converge to a common limit. This article presents various ways of finding that limit. Fundamentals: Internal Energy and Heatby Alexey ChernoutsanWhy does “Q” appear in the reference tables and not “delta U”? Feedback: Caution: No Air Brakes on This Planet!by David P. SternA response to “A Planetary Air Brake” (Quantum, March/April 1997). How Do You Figure?: Challenges in Physics and MathBrainteasers: Just for the Fun of It!HappeningsThe Quantum Bulletin Board. Crisscross ScienceScientific crossword puzzle. Answers, Hints & SolutionsIndex (1996–97)Quantum Control Panel Copyright © 1997 National
Science Teachers Association |