Pick-A-Number From 10 to 10000...
Pretty impressive online 'guess-the-number' game here:
(H/T to Sol for leading me to it)
More on the Oct. 21 worldwide "Celebration of Mind" in memory of Martin Gardner here:
And last month I mentioned Carl Gauss as one of my "Fab Four" mathematicians of all time. If you need to know more about him, Steven Colyer recently posted a nice mini-biography at his blog: