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I got a book in the mail from Princeton U. Press - they seem to be sending me math books in hopes that I'll blog about them, or something. It's called Guesstimation 2.0, it's by Lawrence Weinstein, and it seems like a good bunch of exercises. For example: estimate the total volume of all human-built structures in the US, and compare it with the volume of Mount Everest. I will, in fact, post a bunch of these puzzles on G+, at least if people seem to enjoy them.
But, the really fun part is that it was sent to
Centre for Quantum Technologies
So, somehow Azimuth is becoming more real. I'll be glad to pass on this book to one of you after I'm done with it.