Shape-Shifting Drones Could Be Made from Metal-Foam Hybrid

Designed by engineers from Cornell University, in Ithaca, New York, and with funding from the U.S. Air Force, the composite material consists partly of silicone and partly of a metal with a melting point of 144 degrees Fahrenheit (62 degrees Celsius). "The driving vision behind this is the puffin," said study first author Ilse Van Meerbeek, a Cornell graduate student in the field of mechanical engineering.