John Ptak runs an interesting blog where he explores the “History of Ideas–unusual connections in the history of science and mathematics with the arts and social history.” His musings and reflections, his use of striking imagery, and his grounded historical approach make for some enjoyable online reading.

I ran across it while looking for an image of Darwin’s “branching tree” diagram, which he handily included in this post The Wrong Stuff, Righted–the Attack on Darwin’s Descent, 1871.

Ptak Science Books features in the same month of March this striking image of Albrecht Durer’s Geometrical Man, a creation that astounded me for dating to the 1500s.

More recently he’s explored the building and use of the atomic bomb, the hidden geography in old prints, and historical breakthroughs in astronomy.