lightest metal

Boeing creates the lightest metal in the world

This metal is light enough to be balanced on top of a dandelion, because it consists of the air for 99.99% and it’s 100 times lighter than Styrofoam, Joinfo.ua reports with the reference to Geek.com. https://youtu.be/k6N_4jGJADY Researchers from HRL Laboratories of Boeing were