Some Useful Mathematics For A Saturday Morning

First, a good heads-up from Magic Realism Bot, a Twitter feed which every two hours produces a new magic-realist story, some of which sound pretty good, must say:

(Hi, Ben!)

Second, something I learned from following the Everydata twitter feed:

It is, as promised, an estimate of how many calories you save, and how much weight you might expect to lose each year, if you dab excess grease off pizza. It also makes me aware that I apparently eat rather less pizza than the national average. I may want to work on that.