Scientists Invent the World’s Lightest Metal: “The new metal consists of 99.99 percent air. The other 0.01 percent is made up of interconnected hollow tubes with a wall thickness of 100 nanometers. It’s so light that it can sit ON TOP OF THE FLUFF OF A DANDELION.”

Scientists Invent the World’s Lightest Metal: “The new metal consists of 99.99 percent air. The other 0.01 percent is made up of interconnected hollow tubes with a wall thickness of 100 nanometers. It’s so light that it can sit ON TOP OF THE FLUFF OF A DANDELION.”