Lund University

Though musicians could probably point to numerous exquisite examples of custom instruments with relative ease, we'd wager that few would compare to those produced by Olaf Diegel. Now he has taken his creations to the stage for what he claims is the world's first gig using 3D-printed instruments.

New research suggests that pneumatic or air hybrids that store energy captured from braking as compressed air could halve the fuel consumption of ICE powered vehicles.