Hacker News on 12 January 2014

• India Manages to Free Itself of Polio
• Awful app review trend among Turkish users
• A 1,600-Year-Old Viking War Game
• Meanwhile, at code.org
• Best development book I've read, has no code in it
• Rare color film shows what London looked like in 1927
• How to stop feeling lonely
• ARM immediate value encoding
• Goodnight. Sleep Clean
• Money can buy happiness