[ Information | Background | The CyberTeaser | Quantum News | Miscellaneous Stuff ] Contents of the January/February 1996 issue of QuantumFeature articlesWho Owns Roman Numerals?by Steven SchwartzmanAfter all these years, you’d think everyone would know how to write Roman numerals! What are the "rules"? Was there ever a time when they were followed strictly? A Walk on the Sword’s Edgeby V. MeshcheryakovNot only does the yogi walk along the blade of a sword, he "dismounts" with a somersault! How on earth does he do it? The Orchard Problemby Vladimir JankovicA classic problem: how does one plant as many trees as possible and still have a view through the trees? This article provides a solution to the general form of the problem. The Wind in the Quicksilverby Ivan VorobyovAn explanation of a strange phenomenon: the backward flow of ions in mercury amalgams. DepartmentsKaleidoscope: Fluids and Gases on the MoveA grab-bag of questions, problems, and curious facts related to fluid dynamics. At the Blackboard I: The Discriminant at Workby Andrey YegorovHow to extract information from the well-known conditions for the solvability of quadratic equations and inequalities in real numbers. In the Lab: Behind the Mirrorby N. M. RostovtsevHow to measure the thickness of a mirror’s reflective layer. Mathematical Surprises: The Magic of 3 x 3by Martin GardnerVariations on the lo shu (magic square), including a special challenge to Quantum readers. At the Blackboard II: Shall We Light a Fire in the Fireplace?by Victor LangeEven though the internal energy of the air in our house won’t change as a result? Physics Contest: Focusing Fieldsby Arthur Eisenkraft and Larry D. KirkpatrickFinding a magnetic field that can focus charged subatomic particles. Math Investigations: Nonstandardly Continued Fractionsby George BerzsenyiAn infinite process that is worthy of at least a finite amount of attention. Toy Store: Nesting Puzzlesby Vladimir DubrovskyFrom matryoshkas to the Tower of Hanoi and beyond. Feedbackby Paul HorwitzA response to a recent Publisher’s Page editorial on the National Science Education Standards. How Do You Figure?: Challenges in Physics and MathBrainteasers: Just for the Fun of It!HappeningsCrisscross ScienceScientific crossword puzzle. Answers, Hints & SolutionsQuantum Control Panel Copyright © 1995 National
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