Recent projects:
Ravec:Â a 3D evidence grid library, with uniform array and octree backends.
FUSE for Google Drive: also includes a simple rsync-like tool.
Passe-partout: an implementation of transferable virtual property using the bitcoin blockchain.
An article by David Burch on refraction in celestial navigation.
Coyote Point Geology and History: an incomplete study of Coyote Point.