Since its discovery, graphene, a 2D layer of carbon molecules, has taken the title of the strongest material in existence. But how to turn it into a 3D material that could be used for projects like building has remained a challenge. Now MIT says they've found a way to print graphene as a porous 3D material that has five percent of the density of steel while being ten times stronger. Creating a computer simulation of the material, the researchers were able to test different geometrical formations to find the strongest shape. In doing so, they realized that the strength had less to do with the material itself and more to do with the shape used. As you can see in the video below, one of the two