Hacker News on 12 October 2015

• Blowing the Whistle on the UC Berkeley Mathematics Department
• Show HN: Exposé – a static site generator for photos and videos
• The Little Printf
• Facebook paid £4,327 corporation tax in the UK in 2014
• Off the Grid, but Still Online
• 507 Mechanical Movements (1868)
• Feynman's Letter to His Wife
• ‘99.99 percent air’: Boeing releases video of revolutionary lightweight metal
• Node.js: Some quick optimization advice
• Dell to Buy EMC in Deal Worth About $67B