# Tweet by [@keefmoon](http://twitter.com/keefmoon) on 2011-04-17 14:57:43 > [!INFO] Archived from [original tweet](http://twitter.com/keefmoon/status/59631630041616384) RT @ben_research: A bicycle built for none: Riderless bike helps researchers learn how balance rolls along - In a discovery... http://tu ...