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09 July 2004 Wanderings Ralph J. Coppola Come join us on the Wanderings Chat Room. --- (See info and instructions) = = = = = = = = = = = = = = = = = = = = = = = = = = = ===== Feature Many months ago, Joe Huck, an artist and printer, sent me an excellent package, containing a CD and a set of transparencies that he has assembled to demonstrate the wondrous world of Moiré Patterns. As Joe shows, Moirés can be a problem in printing, but they can also find many uses in science and technology. A technique called Shadow Moire is used to pick surface imperfections and Moiré Fringe Contouring is a method of capturing 3D images. There are many examples of Moire Java Applets, such as Moiré Patterns: Interactive Java Tutorials, that can be found on the Molecular Expressions web site. Also, have a look at the F. Permadi collection of Java based games and Moiré Pattern generatorsand the Eluzion's Moiré Pattern Generator. Wanderings SAS member Charlie Neuhauser points us to the JPL Robotics page. They are NASA's prime designer of rovers and robots. Brian Carusella's Bizarre Stuff Site contains a wide selection of projects and experiments. Please read his FAQ before attempting to duplicate any of the items. Wayne Schmidt covers kaleidoscopes in great detail with his Kaleidoscope and Advanced Kaleidoscope Design pages. The amateur with some glass cutting skills can duplicate his designs and conduct various experiments. A geomagnetic storm, in conjunction with the 2000 Perseid meteor shower, triggered a spectacular aurora display that was visible across the northern US and Canada. Why not build Rick Boozer's DIY Automated System for Detecting Meteors before this August's Perseid meteor shower? You will also find Rick's e-book in progress, Amateur Astronomy (A Guide), on his Singularity Scientific web site. Mark Csele's The Homebuilt Lasers Site has a wide selection of information for the DIY laser experimenter. Microscopy-UK is an Internet portal serving microscope enthusiasts. Look through this collection of AV clips from Feynman and Pauling. Experiment with combining sine waves to produce musical tones and the human voice. The Kids Room Back in the dark ages, while trying to learn high school physics, we had to try and visualize the concepts that were being explained in our text books. All that has changed with the advent of Java applets. MyPhysicsLab is an example of one of the sites that make use of Java technology in physics simulation. With the Virtual Frog web site, you can dissect a digitized frog without getting your hands dirty and, more importantly, without harming an actual frog. The Physics Van, an outreach program of the University of Illinois Physics Department, conducts on site physics demonstrations at local elementary schools. They also offer an "Ask a Scientist" service and maintain a database of past questions and answers. During summer vacations, many of us are lucky enough to spend some time at the sea shore. Have you ever wondered about the tides or the waves? If so, perhaps Princeton's Science Curriculum Support Project feature about Water on Earth can answer your questions. Science NetLinks provides a collection of resources for K-12 science educators. On The Lighter Side Please help save the endangered Pacific Northwest Tree Octopus from extinction! Ideal Scientific has a wide selection of stock that was left over from their 1 April 2004 Super Sale. From The Far Side The Space Elevator --- Fact or Fiction? Tim
Ventura and the American Antigravity site presents links
to Lifter articles plus a wide selection of topics covering "both sides
of the line." |
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Copyright 2004 by Society for Amateur
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