Hacker News on 2 January 2013

• Make the Metric system the standard in the United States
• Ubuntu for phones
• Canonical announces Ubuntu for smartphones
• Regexper: Beautiful regexp visualizations
• SQL Injection Vulnerability in Ruby on Rails; affects all versions
• A world without power
• Avis acquires car sharing company Zipcar for $500 million
• The physics of that ‘kickalicious’ kick
• Patent trolls want $1,000 per employee for using scanners
• Why did a Train Carrying Biofuel Cross the Border 24 Times and Never Unload?