 Springing a Physical Surprise  Ivars Peterson (MathTrek)
Consider a weight hanging from a spring, which in turn is suspended by a piece of string from an identical spring attached to the ceiling. Cutting the connecting string would send the weight and the lower spring plummeting to the floor. Now add two "safety"
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 Stardust Equations  Keith Devlin (Devlin's Angle)
On Sunday, February 7, at 4:04 PM, a Lockheed Martin Delta II rocket lifted off from Cape Canaveral carrying an unmanned spacecraft about the size of an office desk, having the romantic name of Stardust. If all goes well, on January 15, 2006, the spacecraft
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 The STEM Collaborative  Maryland Public Television, Arkansas Educational Television Network, Alabama Public Television, and Kentucky Educational Television
The four online adventures Scale City, ProportionLand, Math by Design (architecture), and Rock 'n Roll Road Trip (music) engage students to use geometry, algebra, and proportional reasoning for skateboard ramps, cooking, amusement park roller coasters
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 STEM Concept Videos  Teaching and Learning Laboratory, Massachusetts Institute of Technology
Concept "vignettes" for first and secondyear undergraduate engineering students to watch: conservation of mass, latent heat, electric potential, flux and Gauss' Law, motion, contaminant fate modeling, curl, divergence, enzyme kinetics, gradient, equilibrium
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 Student Activities from Jefferson Lab's BEAMS Program  Steve Gagnon
Middle school science and math activities from Jefferson Lab. Each activity includes a teacher overview, student and teacher materials which may be viewed online or downloaded in PDF format, and a list of the relevant Virginia State Standards of Learning.
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 SuanShu  Haksun Li
An objectoriented numerical library of methods for building engineering software, conducting research, or prototyping. SuanShu shares many algorithms in common with Netlib and other public domain libraries, but has advanced them through refactoring
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 Systems Theory; Control  Dave Rusin; The Mathematical Atlas
A short article designed to provide an introduction to systems theory; control: the mathematical study of complex dynamic structures in engineering. One
can attempt a mathematical or statistical test for system identification, that is, to deduce the
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 TeachEngineering Digital Collection
The TeachEngineering digital library provides teachertested, standardsbased engineering content for K12 teachers to use in science and mathematics classrooms. Engineering lessons connect realworld experiences with curricular content already taught
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 Teaching Introductory Statistics in the Social Sciences and Engineering (Mathematics Across the Curriculum)  Dartmouth College
A course that brings together faculty from many different departments who collaborate to produce instructional modules that can be used interchangeably in different introductory courses in statistics, and which integrate the most current technology available
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 Team America Rocketry Challenge  the Aerospace Industries Association (AIA) and the National Association of Rocketry (NAR)
Want to design, build, and fly model rockets? The first of these rocket contests was advertised as a oneoff celebration of the 2002 Centennial of Flight; but the enthusiasm about the event was so great that its sponsors, the AIA and the NAR, were asked
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 Tensegrity Structures  Paul Flavin
"Compression and Tension are good; Torque's a Killer. Plato, Fuller and the three little pigs." "Cubes (constructed with beams) and houses can and do collapse when a sufficient horizontal (shearing) force is applied above the foundation. The walls act
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 Thinking Fountain Shape Cluster  Science Museum of Minnesota
Activities, images, and experiments relating science, math, and language arts. The shapes and math cluster features shape walk, I C shapes (finding circles, squares, and triangles in everyday objects), soap bubble geometry, pyramids and cubes (building
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 Time Engineers  Ray Shingler, Clay Schultz, and David Bielat
In this video game, middle and high school students explore and apply fundamental principles of engineering by traveling in a time machine to build pyramids, irrigate farm land, steer a submarine, raise and lower medieval drawbridges, operate radar, launch
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 Time Engineers  Software Kids
A CDROM game of interactive, openended engineering problems to solve by using math and science skills, designed to help middle and high school students explore and apply some of the fundamental principles of engineering. Time Engineers encourages trialanderror
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 The Treb Challenge  GlobalSpec, Inc.
Custom build a trebuchet for three challenges: distance, accuracy, and power. Between launches, continue modifying the catapultlike seige engine's projectile weight, launch angle, gravity, wind, counterweight mass and height. After each challenge, the
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 TreeAge Software, Inc.
Producer of decision analysis software. Product information, interactive demos and trial download, FAQ and technical support, ordering, and registration.
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 The Tunnel of Samos  Project MATHEMATICS!, California Institute of Technology
A videotapeandworkbook module that explores a basic topic in high school mathematics in ways that cannot be done at the chalkboard or in a textbook. This video describes a remarkable engineering work of ancient times: excavating a onekilometer tunnel
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 Turn of the Screw  Ivars Peterson (MathTrek)
Mathematician Chris Rorres of Drexel University in Philadelphia has taken a close look at Vitruvius's specifications for constructing an Archimedes screw... Recent years have seen a revival of interest in the Archimedes screw, particularly for its proven,
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 VisualMath  Software And Engineering Co.
A graphic language for solving all types of problems, providing over 80 components, all of which are capable of using matrix input. Many dialogs are used to define properties. A special 3D plotter and table viewer show the results of the solution. VisualMath
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 Visual Thought
A crossplatform diagramming & flowcharting tool running on Windows 95/NT and UNIX. Visual Thought moves ideas onto the screen quickly by making it easy for the user to draganddrop shapes and make rubberbanding connections between objects. It is
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 The Wavelet Tutorial  Robi Polikar
The engineer's ultimate guide to wavelet analysis: a tutorial that explains basics of signal processing with a focus on the technique of wavelet transformations (WT). Basic concepts of importance in understanding wavelet theory; Short Term Fourier Transform
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 The West Point Bridge Design Contest  United States Military Academy, West Point, New York
A challenge for U.S. students age 13 through grade 12. The purpose of the contest is to provide middle school and high school students with a realistic, engaging introduction to engineering. Learn about how engineers use the computer as a problemsolving
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 White Group H2 Maths Tuition  Koh Y.S. Frederick
This Singaporean tutor offers examination advice and recommendations ("A level H2 maths question spotting thoughts"), a section for those "pursuing mathematics beyond the Singapore H2 9740 standard," and a "question locker" for students who "wish to challenge
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 The Why Files  University of Wisconsin
An electronic exploration of the issues of science, math, and technology that lurk behind the headlines of the day, presenting those topics in a clear, entertaining and accessible manner. Provides a bimonthly feature on the science of everyday life, archived
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 Wolfram Research in Precollege Education  Wolfram Research
"In the Classroom" highlights how some schools and organizations use Mathematica extensively in their curricula. The section on "Collaborative Initiatives" illustrates how businesses have teamed up with Wolfram Research to sponsor handson workshops,
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 Women, Minorities, and Persons with Disabilities in Science and Engineering: 1994  Division of Science Resources Studies (SRS), National Science Foundation (NSF)
An NSF report that describes the status of groups traditionally underrepresented in science and engineering, and documents factors important to choice of study and to success in pursuing science and engineering.
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 Women, Minorities, and Persons With Disabilities in Science and Engineering: 1996  Division of Science Resources Studies (SRS), National Science Foundation (NSF)
This report presents data on participation of underrepresented groups in science and engineering, and documents factors important to success in science and engineering in precollege education, undergraduate and graduate education, and employment. The
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 Women of NASA  Tish Krieg, National Aeronautics and Space Administration
The Women of NASA resource was developed to encourage more young women to pursue careers in math, science, and technology. The project showcases outstanding women who are enjoying successful careers, and demonstrates how these women balance personal and
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 Women's Adventures in Science  National Academy of Sciences
This project of the National Academy of Sciences showcases contemporary women in science, and highlights for young people the varied careers of some of today's most prominent scientists. The site draws from and accompanies Women's Adventures in Science,
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 Young Engineers  The Decade Group
Enrichment courses for children and teenagers using LEGO and K'nex. Sessions such as Big Builders, LEGO Challenge, and GaliLEGO teach basic and complex mathematics, introduce famous scientists, and demonstrate powers and principles of physics. Based in
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