Hacker News stories for 4 AM on Monday May 06, 2013

0.804 Binary marble adding machine comments

0.729 Great Programmers Write Debuggable Code comments

0.718 Great Peter Thiel Talk:You are Not a Lottery Ticket comments

0.096 Worls’s first 3D printed gun test fired. comments

0.059 Hands-on With App Engine’s New Runtime comments

0.014 Why iPhone App Screenshots Matter and How to Make Good Ones comments