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(PhysOrg.com) -- A thin sheet of plastic has been making headlines at Princeton as a magical flying carpet, after the publication of a paper describing experiments by the team with their prototype sheet of plastic that uses piezoelectric actuators and sensors to move.

UPS is testing trucks made of an ultra-light material that makes them more fuel efficient than their sheet-aluminum counterparts. UPS has the unfortunate task of figuring out how to deliver packages without bleeding cash in our resource-constrained world