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Q&A World with core of changing mass, gravitational effect on tides?

I'm building a fantasy world with a planetary core that gains and loses mass in a predictable manner. I want the gravity to increase and decrease by 50% in both directions over a period lasting 2-3...

1 answer  ·  posted 7y ago by Adam Halatek‭  ·  last activity 7y ago by Adam Halatek‭

Question planets physics gravity tides