Whats so cool about this new material (made of nickel)?

-Volume = 99.99% air

-Density = 0.9 milligram per cubic centimeter (less than one-thousandth that of water)

- Wall thickness of 100 nanometers, 1,000 times thinner than a human hair. (Material is made out of tubes basically)

-Check out the second set of pics; When it’s squashed, the tiny tubes buckle, but when the pressure is removed, it rebounds. A sample compressed to half its original height rebounds 98 percent of the way.