a three-dimensional coordinate system in which the coordinates of a point are its distances from each of three intersecting perpendicular planes along lines parallel to the other two

Posted online on Monday, January 1st, 2001

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Canada geese

Submitted by Sammy Smith (sammy@thesga.org) Canada geese are native to North America and eastern Siberia and northeastern China. They are migratory birds, and their scientific name is Branta canadensis. We see migrating geese frequently today in the spring and autumn.

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