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Science News
May 31, 2003
Ivars Peterson |
Measuring with Jugs Given a 5-liter jug, a 3-liter jug, and an unlimited supply of water, how do you measure out exactly 4 liters?   |
Science News
May 17, 2003
Ivars Peterson |
Sequence Puzzles Neil A.J. Sloane of AT&T Shannon Labs in Florham Park, N.J., has been collecting number sequences ever since he was a graduate student at Cornell University in the 1960s. |
Science News
May 10, 2003
Ivars Peterson |
Coins for Making Change Efficiently Is ours the optimal choice of coin values for minimizing the number of coins required to handle typical transactions? Computer scientist Jeffrey Shallit of the University of Waterloo has worked out an answer. What the U.S. needs, he says, is an 18-cent piece. |
Science News
May 3, 2003
Ivars Peterson |
A Geometric Superformula The notion of a simple equation that you can use to generate a wide variety of geometric shapes is an immensely appealing one. Johan Gielis of Antwerp, Belgium, proposes one such formula in the March American Journal of Botany. |
Science News
April 26, 2003
Ivars Peterson |
Recycling Topology On the topology of an interesting form: the recycling symbol |
Science News
April 19, 2003
Ivars Peterson |
The Colors of an Equation's Roots A few artists have taken advantage of the techniques used to visualize mathematics to create aesthetically pleasing patterns and intriguing artworks. |
Science News
April 12, 2003
Ivars Peterson |
Constructing Domino Portraits One rendition of a famous portrait was constructed entirely from 48 complete sets of double-nine dominoes. The work of mathematician Robert Bosch of Oberlin College, this remarkable creation represents the successful application of a novel algorithm for approximating target images as arrays of dominoes. |
Science News
April 5, 2003
Ivars Peterson |
Fractured Granite and Fractal Prints A fractured edge of granite tends to show the same degree of roughness at different magnifications. Indeed, nature features many irregular shapes that are self-similar -- that repeat themselves on different scales within the same object. |
T.H.E. Journal
April 2003
Chuck Grant |
Math Sites Offer Helpful Homework Solutions If students and teachers search the Web for "math homework help," you may be surprised by all of the free, constructively helpful sites that are available. |
Industrial Physicist
Apr/May 2003
Marko Ledvij |
Curve fitting made easy In science and engineering it is often desirable to represent empirical data as a mathematical equation, from which calculus can be used to determine many important characteristics. The goal of curve fitting is to find values for parameters that produce a curve closest to the data. |
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