Twas the night Yogsmas…..
Printable circuit items always catch my eye. Â The idea of being able to work up a project and share it far and wide in a common easy to work with material has its charms. This then caught my eye….
Of note …they figured out a way to make a printed ardunio clone using their pen and a plotter.  (Paperduino: How to Print a Paper Arduino) 
Circuit Scribe is a rollerball pen that writes with conductive silver ink. It makes creating circuits as easy as doodling.
We know they are , but HOW are they? Vidi well….
Professor Edward Frenkel discusses the mathematics behind the NSA Surveillance controversy – see lin
Warning, This video will hurt. 
Official Discussion on http://www.reddit.com/r/CGPGrey/comments/1tjaj4/the_video_will_hurt_grey_expl