Can you tell me the algorithm for calculating hotness of questions on all SE sites?

Which factors are considered to calculate it?

Also if the code behind it is not of military level top secret which would leave me dead once I know it, you are welcomed to tell that too.

  • @hivert you cn see hot questions on every SE site.I want to know how they are decided/calculated. – Aditya Patil Mar 8 '14 at 9:43
  • @hivert I actually missed two words.I think the question makes sense now. – Aditya Patil Mar 8 '14 at 9:45

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