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This web page published by the National Aeronautics and Space Adminstration (NASA) addresses basic, and not so basic, questions about our physical Universe, the characteristics of living in space and its technical...
This website, authored and curated by David P. Stern, provides teachers with lesson plans of astronomy, Newtonian mechanics and spaceflight such as Newton's theory of universal gravitation and Kepler's third law. Lesson...
Authored and curated by David P. Stern, this is a lesson plan for teaching Newton's formulation of gravity. It is linked to textual reference materials about the theory and history of gravity. The motion of...
This web page demonstrates Kepler's Laws through a Flash simulation. The user places an object at some distance from the sun and gives it an initial velocity to orbit the sun. Once the simulation begins, it shows the...
This page, from the New York Times, provides a series of news articles published in 1957 after the Soviet Union launched Sputnik, the first artificial satellite. A narrative outlines the events that occurred and the...
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