From my friend Doug:

Given the radius of a pizza "z", and the thickness of the pizza "a", the
volume can be calculated as pi*z*z*a.

http://steampunkworkshop.com/daveveloz.shtml

A replacement for email? Finally? Google seems to be on track to reinventing not only email, but the complete web-based communication experience.

http://wave.google.com/

Oh, and for all you Firefly fans, notice that Google is appropriating the show's nomenclature of "sending a wave".