dgeake and fatty, you are both right. There is always a need to consider more sources. Britannica.com, for example, does not even have an entry for white holes, and a search through their entire database gives no results.
Here is another source, with lots of illustrations:
White Holes and Wormholes
It has a very interesting statement:
Quote:
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A white hole is a black hole running backwards in time. Just as black holes swallow things irretrievably, so also do white holes spit them out. White holes cannot exist, since they violate the second law of thermodynamics.
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Tormod
