Wolfram Demonstrations Projecthttp://demonstrations.wolfram.com/An Open Resource of Interactive Mathematica VisualizationsCopyright 2009 Wolfram Demonstrations Project & ContributorsTemperature and Entropy of a Black Holehttp://demonstrations.wolfram.com/TemperatureAndEntropyOfABlackHole/]]>http://demonstrations.wolfram.com/TemperatureAndEntropyOfABlackHole/