Hacker News on 31 May 2015

• Tell HN: Thank you whoishiring, a.k.a. Matthew Walsh-Cloonagh
• Lego Universe's Dong Detection Problem
• The Archer's Paradox in Slow Motion [video]
• Why do airplane windows have tiny holes?
• Apple I discarded as junk sells for $200k; mystery woman stands to get half
• Coursera is phasing out free certificates
• ØMQ - The Guide
• An Introduction to Statistics with Python
• FBI doesnt want you to know it uses NSLs to correlate identities you use online
• C for high level programmers (slides)