{"repository":{"forks":0,"owner":"phetsims","created_at":"2013-02-07T20:27:21-08:00","description":"A realistic mass and spring laboratory. Hang masses from springs and adjust the spring stiffness and damping. You can even slow time. Transport the lab to different planets. A chart shows the kinetic, potential, and thermal energy for each spring.","has_issues":true,"has_downloads":true,"language":"JavaScript","open_issues":0,"fork":false,"size":376,"watchers":0,"has_wiki":true,"private":false,"stargazers":0,"pushed_at":"2013-02-08T12:32:32-08:00"},"actor_attributes":{"type":"User","email":"da39a3ee5e6b4b0d3255bfef95601890afd80709"},"url":"https://github.com/phetsims/masses-and-springs/compare/2038be4d1c...dc67314bba"}