Praeter Software on Monday released Physics 101 SE 4.1, an update to its tool set aimed at physics students of all grade levels. Version 4.1 adds support for more formulas, bringing the total to over 80, as well as a Body Diagram Simulator that shows how a mass would move under certain conditions, a RelativisticFX tool for calculating special relativity, a PeriodicX periodic table reference and a Springz tool for studying waves and oscillations. This is a free update for registered users. Physics 101 SE is US$9.95 and works with any version of Mac OS X through v10.2.
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