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Williams, Hollis – Physics Teacher, 2022
It is well known that Newton's work on mechanics depended in a crucial way on the previous observations of Galileo. The key insight of Galileo was that one can analyze the motion of bodies using experiments and mathematical equations. One experimental observation that roughly emerges from this work in modern terms is that two objects of different…
Descriptors: Scientific Principles, Mechanics (Physics), Motion, Equations (Mathematics)
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Dittrich, William A. – Physics Teacher, 2014
The drop towers of yesteryear were used to make lead shot for muskets, as described in "The Physics Teacher" in April 2012. However, modern drop towers are essentially elevators designed so that the cable can "break" on demand, creating an environment with microgravity for a short period of time, currently up to nine seconds at…
Descriptors: Science Instruction, Physics, Toys, Motion