All Tastes Are Different but Mine Rock

Notes: 31 / 2 weeks ago from shelikessexncomics

Notes: 2711 / 2 weeks ago from laughingsquid

laughingsquid:

High Speed Photos of Flying Liquids by Manon Wethly

Notes: 222 / 2 months ago from emergentfutures (originally from smarterplanet)

smarterplanet:

Graphene Ultracapacitors Offer Blistering Performance and Charge in a Couple of Minutes

Researchers at the University of California are developing graphene supercapacitors that can charge and discharge in a couple of minutes. The ability to discharge in a couple of minutes means that they are extremely powerful. More importantly though, these researchers developed a technique for printing graphene supercapacitors using a DVD burner.

The researchers dissolved graphite oxide in water and heated it with a laser from a standard DVD burner to obtain flexible graphene sheets. These graphene sheets are one-atom thick, yet can hold a remarkable amount of energy, while being charged or discharged in very little time compared to standard batteries.

Ultracapacitors have tremendous advantages over typical lithium-ion batteries, some of which are of paramount importance to the adoption of electric cars, such as their ability to charge in as little as 1 second, and last 20 years (easily, and with very heavy usage).

Notes: 7 / 4 months ago from turcotteinc