Smartphone & amp; Gadgets
It ‘was built the first display of hydrogel , material made more than 90% of water . Described in the journal Science, was carried out by the group Seoul National University coordinated by Chong-Chan Kim . The screen, which debuted with video games and writing programs, it Flexible and elastic. All the technologies studied before were based on conductor albeit elastic, such as carbon nanotubes and metal nanowires, but based on hard commodities. South Korean researchers have in fact tested the futuristic “ water screen ” writing, playing and even trying some video games, keeping the display (but not show images, but it works – for now – only input via touch controls) wrapped in arm. They used a hydrogel with salts of chloride lithium, which act as tenant and help retain water .
With the display on the arms, scholars have been able to write words, play the piano and play games.
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