Bulging water droplets could make for cheap and simple sensors.
Mini-lenses made out of water droplets have been made to bulge and contract in response to temperature and pH changes in their environment. The clever trick makes for a tiny sensor whose changing focal length could one day be used to quickly and simply monitor all sorts of things, from blood samples to miniature chemical reactors.
Read the full story here.
Bulging water droplets could make for cheap and simple sensors.
Mini-lenses made out of water droplets have been made to bulge and contract in response to temperature and pH changes in their environment. The clever trick makes for a tiny sensor whose changing focal length could one day be used to quickly and simply monitor all sorts of things, from blood samples to miniature chemical reactors.
Read the full story here.
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