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 ...

Energy & Green Tech

At the end of the road, EV batteries have no particular place to go

Transport is at a crossroads as we move away from filling our tanks with liquid fossil fuels and powering them up from battery charging points. However, the lithium-ion batteries that displaced those tanks have a finite lifespan ...

Automotive

Driver in strange Tesla crash apparently moved to rear seat

Investigators from the National Transportation Safety Board apparently have solved the mystery of why no one was found behind the steering wheel of a Tesla that crashed in a Texas two years ago, killing two men.

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