A more environmentally friendly air conditioner

Summer is in full swing in the U.S., and people are turning up their air conditioners to beat the heat. But the hydrofluorocarbon refrigerants in these and other cooling devices are potent greenhouse gases and major drivers ...

Magnetic material 3D-printed from nonmagnetic powder

Scientists from Skoltech and their colleagues have used a 3D printer to fuse two materials in an alloy whose composition continuously changes from one region of the sample to the other, endowing the alloy with gradient magnetic ...

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