Scientists used Kevlar to create a thin membrane with holes large enough to allow lithium ions pass through and create a charge.
The science could lead to rust- and ice-free metals and water-repellant electronics.
The technique resembles that used to create children's pop-up books, except instead of using paper, the researchers used materials such as silicon.
A new material called Prism can be programmed to display different colors and patterns in a way that consumes very little power.
Antennae and sensors can be made invisible to remote inspection.
In the process, 3D-printed items change shape after they're printed.
Check out ten technologies from 2014 that never let up the entire year.
This novel drone can self-assemble anywhere to do its job and then melt into a harmless puddle of sugar, if it gets lost.
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