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The coordinate system widget


If nothing else is stated, the length of the axis shown in the following are 5 (in the units discussed above). This length is measured from where the 3 axis cylinders join to the end of the cone - therefore, if we place a small sphere at the point (5,0,0), it will look like this:

Web Exhibition: Null Geodesics Around a Kerr Black Hole

Bo Milvang-Jensen (
Mon Jun 17 11:54:08 MDT 1996