Links for Jane and Others

Philosophy 101 – Real Simple – HT Mental multivitamin. Short summaries of the ideas of six major philosophers.

Mount Wilson Observatory – wildfire photos and info. (I flagged this when the Observatory was under threat from the wildfire but forgot to move the autopost out of drafts. The threat is past now—hurray!—but the Observatory site and webcam are worth a look in themselves.)

The Math Book: From Pythagoras to the 57th Dimension, 250 Milestones in the History of Mathematics – Boing Boing