Applied Physics Letters

Slip-and-slide power generators

Researchers from Vestfold University College in Norway have created a simple, efficient energy harvesting device that uses the motion of a single droplet to generate electrical power.

May 24, 2012 4.7 / 5 (3) 1

Return of the vacuum tube

Vacuum tubes have been retro for decades. They almost completely disappeared from the electronics scene when consumers exchanged their old cathode ray tube monitors for flat screen TVs. Their replacement – the semiconductor ...

May 18, 2012 5 / 5 (11) 3