Who knows two hundred twelve?

Please cite/link your sources, if possible. At some point at least twenty-four hours from now, I will:

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2 Answers 2


The waters of the mabul were at least 212 degrees Fahrenheit. Source: Rav Chisda, Z'vachim 113:2.

  • 2
    But if they were "15 cubits above the highest mountains," wouldn't the temperature have been lower? The boiling point of water goes down by about 1 degree for every 500 feet of elevation.
    – Alex
    Mar 23, 2011 at 17:59
  • 1
    I had thought of that. But presumably all the water was boiling, not only the top part of it. 212 is still not exact: presumably the weight of the top water would pressurize the bottom water enough to raise its boiling point, and anyway I don't know what the boiling point a very tall mass of water is (considering the varying pressure). Also I didn't take solution/suspension, which changes the boiling point (albeit slightly, considering how much water there was), into account. 212 is the best I could do. Any physicists?
    – msh210
    Mar 23, 2011 at 19:03
  • 1
    However Noach measured temperature in Celsius? Mar 23, 2011 at 23:05
  • 1
    Checkmark for the interesting discussion, not for the inherently Jewish-212-ness of the fact.
    – Isaac Moses
    Mar 24, 2011 at 13:55

צלפחד = 212

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