2min chapter

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245 | Solo: The Crisis in Physics

Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas

CHAPTER

How to Modify Gravity

It is easy to imagine the strength of gravity changing. But what if you wanted to change the direction in which gravity pointed? If the game you are playing is the source of gravity is just ordinary matter, there is no dark matter. It is very hard to imagine just changing the theory of gravity so that the force of gravity points in a different direction. Points somewhere other than where the ordinary matter is. Guess what? I guess why I am leaving you down this primrose path because that is exactly the data we have.

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