Energy & Green Tech

Salt battery harvests osmotic energy where the river meets the sea

Estuaries—where freshwater rivers meet the salty sea—are great locations for birdwatching and kayaking. In these areas, waters containing different salt concentrations mix and may be sources of sustainable, "blue" osmotic ...

Robotics

New robot swims and jumps like a Chinese rice grasshopper

Biologist, materials scientist and bionics specialist Professor Stanislav N. Gorb and his team at Kiel University's Institute of Zoology are known for analyzing the spectacular abilities of animals and translating them into ...

Engineering

Students build low-cost cold spray metal 3D printer prototype

A team of Rice University students has developed a cold spray metal 3D printing device that relies on pressure and velocity rather than temperature to create a metal part. Their work could help expand the repertoire of metal ...