## Is Bingo Fair?## by Mark KroskyCan an understanding of the probabilities involved in Bingo be used to gain an advantage? ## Tied into Knot Theory## by O. ViroWhen 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. ## Visionary Science## by V. NovoseltsevAn examination of halos, sun dogs, and other atmospheric optical phenomena. Extraordinary cases of these events may help explain certain historical “visions” and unidentified objects. ## Departments## Gradus Ad Parnassum: Symmetry, Part II## by Mark Saul and Titu AndreescuA second look at symmetry in algebra, with particular attention paid to polynomials and their roots. ## Kaleidoscope: The Nature of an Ideal Gas## by A. LeonovichTest your knowledge of ideal gas behavior and learn such interesting tidbits as who coined the word “gas.” ## Looking Back: Light Pressure## by S. V. GryslovThe history of attempts to measure the pressure light exerts on objects. ## Physics Contest: Depth of Knowledge## by Larry D. Kirkpatrick and Arthur EisenkraftA 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 BarryTeamwork adds excitement and anxiety to a math competition-turned-relay-race. Are you anchor material? ## At the Blackboard II: Homogeneous Equations## by L. Ryzhkov and Y. IoninExamples of what mathematicians call homogeneous equations abound in high school mathematics. But just what exactly is a homogeneous equation? ## Cowculations: Come, Bossy## by Dr. MuHelp Bud, the family dog, round up the cows more efficiently. ## In the Lab: Amusing Electrolysis## by N. ParavyanUse 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!## Crisscross ScienceScientific crossword puzzle. ## Answers, Hints & Solutions
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