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P09-08: Universal Gravitation

P09-08: Universal Gravitation

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This shows (a) how Newton's law was able to predict a planet no-one could see and (b) how one prediction was so wrong, we needed Einstein to give us a NEW Universal Law of Gravity.

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Tutorial

ASSIGNMENT

No figures or tutorials, but there are videos that I made and that the author made that should help.  Also, as long as they last, here are YouTube videos showing Neil deGrasse Tyson explaining how Neptune was discovered, and Vulcan was not.  Finally, here is the GRAVITY WEBSITE I showed you in class.  Left click and right click to play with it.

Source: Simulation by Hermann Björgvin Haraldsson

Universal Gravitation

The Author Describing the Discovery of Neptune

Source: HEWITT, P. G. (2015). CONCEPTUAL PHYSICS (12TH ED.). BOSTON, MA: PEARSON.

Neil deGrasse Tyson Describing the Discovery of Neptune

Source: The Great Courses: Inexplicable Universe

Neil deGrasse Tyson and Mercury's Orbit

Source: The Great Courses: Inexplicable Universe

BONUS COVERAGE! Gravity Waves

You won't be tested on this, but I thought you might like to learn about the recent discovery of gravity waves: how they did it, and what it might mean. Enjoy!