To call wood frogs hardy would be an understatement. The species (Rana sylvatica) can survive winter temperatures that freeze up to two-thirds of the water in their bodies. They endure this annual popsicle phase with help from cryoprotectants, substances circulating in their blood that lower the freezing point of their body fluids. New research shows that frogs at the northern limits of the species' range are uniquely adapted to freezing.
Can humanoid robots save lives? Will they have the capacity to be our friends? Dennis Hong, founding director of Virginia Tech's Robotics & Mechanisms Laboratory (RoMeLa), is making this happen by teaching robots how to win at soccer and by entering the DARPA Robotics Challenge.
It transports electrons 10 times faster than silicon, and may soon be replacing it as the go-to material for transistors and computer parts. …
We're talking about "charging iPhones within five seconds" conductivity here. Imagine a world with electric cars that recharge as quickly as filling your tank with gas, or paper-thin foldable plastic phones that recharge the instant you set them down — that's exactly what graphene offers. And then there's the slight matter of its strength. Mix graphene with metals, and it increases their resilience 500-fold.