Saturday, November 27, 2010

Graphene supercapacitor breaks storage record

Graphene supercapacitor breaks storage record - physicsworld.com
Researchers in the US have made a graphene-based supercapacitor that can store as much energy per unit mass as nickel metal hydride batteries – but unlike batteries, it can be charged or discharged in just minutes or even seconds. The new device has a specific energy density of 85.6 Wh/kg at room temperature and 136 Wh/kg at 80 °C. These are the highest ever values for "electric double layer" supercapacitors based on carbon nanomaterials.

Saturday, November 13, 2010

Happy 100th Birthday to the Neon Sign

Happy 100th Birthday to the Neon Sign - LAist

On November 9, 1910 Frenchman Georges Claude patented the first commercially affordable neon sign to the public