Energy & Green Tech

An electric vehicle battery for all seasons

Many owners of electric vehicles worry about how effective their battery will be in very cold weather. Now a new battery chemistry may have solved that problem.

Energy & Green Tech

US energy secretary says G7 can lead global emissions cuts

Wealthy nations can lead by example in cutting carbon emissions, though much faster action is needed to stem global warming, U.S. Energy Secretary Jennifer Granholm said Friday in an interview with The Associated Press.

Robotics

Bionic robot arms as flexible and gentle as an elephant's trunk

Artificial muscles and nerves made from the shape memory alloy nickel-titanium are making robot arms as supple and agile as their animal counterparts. But these artificial limbs also weigh less, will work tirelessly and can ...

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Liquid

Liquid is one of the principal states of matter. A liquid is a fluid that has the particles loose and can freely form a distinct surface at the boundaries of its bulk material. The surface is a free surface where the liquid is not constrained by a container.

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