New efficiency record advances spray-on solar cells

New efficiency record advances spray-on solar cells: To make quantum dot solar cells that can be sprayed or painted on, the tiny nanoscale semiconductors need to be dispersed evenly within another substance - this is known as a colloid.

The world's oldest running car up for sale

The world's oldest running car up for sale: A very special car will cross the autcioneers block next month - it's the world's oldest running motor car, a historic 1884 de Dion Bouton et Trepardoux Dos-a-Dos Steam Runabout. The second prototype built by Count de Dion, the car participated in the world's first automobile race.

The spherical genius of the Hüttlin Kugelmotor

The spherical genius of the Hüttlin Kugelmotor: The car is not going to disappear anytime soon and neither is the combustion engine, despite the inevitable rise in fuel prices. We have said it before, electrical motors are an energy-efficient method for driving vehicles but battery technology is simply not going to advance quickly enough for all-electric vehicles to be a practical reality for most uses anytime soon.