nanocardboard tagged posts

Engineers are suggesting a new way to explore the sky: tiny aircraft that weigh about as much as a fruit fly and have no moving parts. These flyers are plates of ‘nanocardboard,’ which levitate when bright light is shone on them...

Nanocardboard is made out of an aluminum oxide film with a thickness of tens of nanometers, forming a hollow plate with a height of tens of microns. Its sandwich structure, similar to that of corrugated cardboard, makes it more than ten thousand times as stiff as a solid plate of the same mass. A square centimeter of nanocardboard weighs less than a thousandth of a gram and can spring back into shape after being bent in half.
Credit: University of Pennsylvania

Engineers have demonstrated a new material they call ‘nanocardboard,’ an ultrathin equivalent of corrugated paper cardboard. A square centimeter of nanocardboard weighs less than a thousandth of a gram and can spring back into shape after being bent in half...