PoliticsWhite House Posts First VinesLeVar Burton and Bill Nye star in first-ever six-second White House video press release announcing 2013 White House Science Fair.By by Evan McMorris-SantoroBuzzFeed News ReporterPosted on April 22, 2013, 4:19 pmTwitterFacebookLink The White House @whitehouse Bill Nye @TheScienceGuy & @LevarBurton welcome you to the #WHScienceFair! https://t.co/wKoIjJqklh 03:39 PM - 22 Apr 2013 Reply Retweet Favorite Bill Nye @TheScienceGuy & @LevarBurton welcome you to the #WHScienceFair! https://t.co/wKoIjJqklh-- The White House The White House @whitehouse 17-year-old Easton introduces his 3D printed robotic arm. #WHScienceFair https://t.co/6MC6BDJKMx 05:31 PM - 22 Apr 2013 Reply Retweet Favorite 17-year-old Easton introduces his 3D printed robotic arm. #WHScienceFair https://t.co/6MC6BDJKMx-- The White House The White House @whitehouse The President rides a bike-powered water filtration system at the #whsciencefair: https://t.co/S9ATE5bXt6 05:55 PM - 22 Apr 2013 Reply Retweet Favorite The President rides a bike-powered water filtration system at the #whsciencefair: https://t.co/S9ATE5bXt6-- The White House