Why four is the nemesis of happy numbers

What are happy numbers? Primarily, happy numbers are proof that mathematicians take joy in strange things. It seems they have been playing with numbers the way that more normal (cough) people play with action figures, and have decided that there are a whole category of numbers that are happy. And then there is the…

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British couple receive £325,000 for defending the honor of Doctor Who…

Sylvester McCoy didn't just wear the most question marks of any Doctor — he also played the role the longest. A British game show incorrectly claimed that David Tennant played the role for longer than McCoy, leading to a recount.

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