Popular Science USA - May/June 2016

In this Issue:WELCOME TO DRONE-KOTA A cottage industry tries to put North Dakota on the map MARK SUNDEEN,CAN GENES MAKE YOU KILL? Science’s search for the root of violence LOIS PARSHLEY,Alexandru Duru on his hoverboard; photograph by John Kealey,Beef, leather, and milk now available at the synthetic butcher shop and much more…