Op. Amp. Reference Cannot remember where I picked this up, but have used it hundreds of times since.
Linux/Mac OS X Command Cheat Sheet
Thelema and the Libri of Aleister Crowley, nightthief: Thelemic Geometry
A recently discovered set of original Nikola Tesla drawings reveal a map to multiplication that contains all numbers in a simple to use system. The drawings were discovered at an antique shop in central Phoenix Arizona by local artist, Abe Zucca. They are believed to have been created during the...
Reddit user Proteon shared a fantastic image that itemizes all the ports, connectors, sockets, cards, slots and cables you’ll need to identify when piecing your baby together. The valuable resource quickly reached the front page of /r/pics.