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View Resource TryScience

As part of the New York Hall of Science, TryScience is an interactive educational Web site that provides fun, engaging and stimulating learning material. The site has several activities such as the field trips page that links to science centers worldwide, the Star Trek Voyager Adventure that lets kids explore engineering and more. The page contains resources for parents, students and even...

View Resource Work Performed Against an Electric Force

This page, authored and curated by David P. Stern, illustrates the concept of work against an electric force using the examples of the Van de Graaff generator and lightening. There are also shorter examples of the Xerox machine and electric charge on transparency sheets as well as links to sites relating to the Van de Graaff machine or lightening. This is an optional section from a much larger...

View Resource Far-out Pathways to Space

This is a set of six web pages, authored and curated by David P. Stern, describing four unconventional methods of accelerating spacecraft. These are using cannons, nuclear power, solar sails and ion rockets. Gravity-assist maneuvers near moving planets or moons, is described later in the larger work. This is part of the work "From Stargazers to Starships" that introduces physical concepts using...

View Resource Parallax

This web page, authored and curated by David P. Stern, outlines the math and applications of parallax. Parallax is the shift in the apparent direction to an object when it is viewed from two separated locations. It allows the object's distance to be derived. A simple method is developed for distance estimation, with a related "extended thumb method" useful outdoors. The page ends by discussing...

View Resource Research and Evaluation, Arizona State University Modeling Instruction Program

This site, authored by Ibrahim Halloun and David Hestenes of Arizona State University, contains information and results about the ASU Modeling Instruction Program and three assessment tools for physics and science. These assessment tools are the Force Concept Inventory, the Mechanics Baseline Test, and the Views About Sciences Survey. Articles describing results of the assessments are also...

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