Interesting Links for 06-05-2014

• You never did math in high school
  (tags: education math )
• Would you donate your days off to a co-worker with a sick child?
  (tags: holiday work )
• Things you should know as a PHP developer
  (tags: programming php )
• Obama is hilarious
  (tags: obama funny )
• DOD tests “pilot-optional” aircraft
  (tags: robots aircraft )
• The 85-year-old sex-positive feminist who's making a comeback
  (tags: sex feminism age )
• Rich, well-educated men and women are working much longer hours than those on low incomes
  (tags: education money work working_hours )
• Why Sweden has so few road deaths
  (tags: sweden safety cars )
• What it's like to make a joke and have it taken seriously by the international press
  (tags: media reporting jokes apple )
• Volvo’s first self-driving cars now being tested live on public roads in Gothenburg
  (tags: cars driving computers technology ai robots )