Hacker News on 8 February 2012

• ASCII interactive fluid animation
• We are sorry
• Roger Boisjoly dies at 73; engineer tried to halt Challenger launch
• Advanced Data Structures MIT
• Hipster (like Path) uploads your address book emails to its servers
• Vim University - Screencasts and Articles for Serious Vim Students
• The Ruby on Rails Tutorial, 2nd Edition (full draft)
• Stealing Your Address Book
• BBC confronts Facebook troll
• Fast enough VMs in fast enough time