/members-area/b/blog/posts/engineers-discover-a-new-method-to-make-objects-levitate-using-lightMohsen Azadi, the paper’s lead author, wields a scalpel in preparation for the photophoretic experiment. (Image Credit: Eric Sucar, University Communications) Engineers at the University of Pennsylvania have successfully used light to levitate two smen-USTelligent Community 12