In order to remove our dependence on oil, renewable energies have to become cheaper and cost-effective, and this could finally happen as researchers from the University of Texas, Austin have developed a new carbon-based material called graphene which could double the capacity of batteries.
The graphene has an one-atom thick structure and thanks to it, the [...]

The inventor of the first modern portable handset is Dr Martin Cooper, who was the general manager for the systems division at Motorola at that time. In 1973, Dr Cooper made the first call on a portable cell phone. He called his rival Joel Engel, head of research at Bell Labs, to give him the [...]