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There IS such a thing as a tesseract.

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Initial post: Jan 19, 2006, 7:38:42 AM PST
Last edited by the author on Jan 19, 2006, 7:40:38 AM PST
Harry J. Smith's applet,
"The Tesseract:
A Look into 4-Dimensional Space,"

In reply to an earlier post on Jun 26, 2007, 10:06:01 AM PDT
Beyond Ken says:
Is not:

In reply to an earlier post on Jun 15, 2010, 1:28:47 PM PDT
Actually there is:

"According to the Oxford English Dictionary, the word tesseract was coined and first used in 1888 by Charles Howard Hinton in his book A New Era of Thought, from the Greek "τέσσερ;εις ακτίνες;" ("four rays"), referring to the four lines from each vertex to other vertices. Some people have called the same figure a tetracube, and also simply a hypercube (although the term hypercube is also used with dimensions greater than 4)."

The 4th dimension is also known as time, which is what this book deals with, hence why the term is used in it.
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Initial post:  Jan 19, 2006
Latest post:  Jun 15, 2010

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A Wrinkle in Time
A Wrinkle in Time by Madeleine L'Engle (Hardcover)
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