‘99.99 percent air’: Boeing releases video of revolutionary lightweight metal

Boeing has released a video of its groundbreaking microlattice metal, which is “the world’s lightest material,” scientists say. Microlattice is a 3D open-cellular polymer structure made out of small hollow metallic tubes, and represents a criss-cross diagonal pattern with small open spaces. The video gives exciting examples of the substance’s possible use, such as new structural components in aerospace. Microlattice could save a lot of weight and make planes much more fuel-efficient.