Lots of tech companies think the future is going to involve flexible screens that we wear. So far, though, most of what we've seen is either impractical or ugly or both. Now researchers in Korea at Seoul National University have a different idea; in a report they plan to release in Science tomorrow, they’re showing off a flexible touchpad they created with a squishy, stretchy material called hydrogel. They stretched it into various positions and eventually were able to put it on a person’s arm. The hydrogel contained lithium chloride salts, which acted as a conductor and helped the gel stay moist.
The report explains how electrodes on the ends of the touchpad applied similar voltages and created a uniform electrostatic field, so when a...
I’d consider wearing this gel touchpad on my arm
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