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View Diary: Rick Santorum does not know what 'science' is (241 comments)

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  •  In fact, the sun does revolve around the earth (2+ / 0-)

    it just depends on your point of view. And it was difficult for people to imagine any point of view other than the direct evidence of their senses. It just turned out that it is easier to set up equations if you work from the point of view that you are in the middle of the sun. But nowadays, that wouldn't be good enough: you have to also include galactic rotation and the whole expanding universe thing and other stuff that I have no idea how it works.

    •  Actually (0+ / 0-)

      The Sun, the Earth, and the rest of the Solar System revolve around the system's center of mass.  It's just that the Sun is so very massive compared to the rest of the solar system that the center of mass is close to the Sun's center.

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