When we were kids, we were fascinated by Crookes radiometers, those supposedly light-powered spinny little things that were often on display in the science museum gift shop (and sometimes called "light mills"). Jerram must have been too, for he's made a chandelier out of them.
"Beautiful, flickering shadows are formed as sunlight passes through the artwork," Jerram says on his site. "Observed from a distance, the sculpture is a form of flickering, shimmering delicate moving glass. A gentle 'clinking' sound can also be heard as they turn."
At least one such piece will be shown in New York next month, Jerram says. The image above shows a digital mock-up of a 20-foot-tall chandelier (along with a detail of an existing, smaller, piece).
The radiometers can be powered at night with artificial light.