A quantum pump without a crank

Pumps, in a nutshell, are devices that use cyclic motion to attain the steady transport of some cargo. In a bicycle pump, the repeated up and down strokes of a piston create air flow. In a Archimedean screw pump, water is ...

A new liquid crystal ink for 3D printing

Cholesteric liquid crystals, a man-made material with properties between liquids and solid crystals, can mimic the colors of butterfly wings. Liquid crystals are used in televisions and smartphones, but future applications ...

A new fuel cell electrolyte

As far back as the 1930s, inventors have commercialized fuel cells as a versatile source of power. Now, researchers from Japan have highlighted the impressive chemistry of an essential component of an upcoming fuel cell technology.

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