A new Guinness World Record has been awarded - for the least dense, most lightweight 3D printed structure ever made. The record goes to a graphene aerogel developed by Dong Lin, assistant professor of industrial and manufacturing systems engineering at Kansas State University; Chi Zhou, assistant professor of industrial and systems engineering at the University at Buffalo; and Qiangqiang Zhang, associate professor at Lanzhou University. The material, which weighs 0.5 milligrams per centimeter, was developed in February of 2016 and will be featured in the 2018 edition of the Guinness Book of World Records. Learn how it was made at 3DPrint.com: http://3dprint.com/179508/graphene-a...-world-record/