Printed Ear

Can you hear me now? Princeton University researchers have used off-the-shelf 3D printing tools to create a functional ears that can "hear" radio frequencies that humans cannot normally hear:

The finished ear consists of a coiled antenna inside a cartilage structure. Two wires lead from the base of the ear and wind around a helical "cochlea" – the part of the ear that senses sound – which can connect to electrodes. Although McAlpine cautions that further work and extensive testing would need to be done before the technology could be used on a patient, he said the ear in principle could be used to restore or enhance human hearing. He said electrical signals produced by the ear could be connected to a patient's nerve endings, similar to a hearing aid. The current system receives radio waves, but he said the research team plans to incorporate other materials, such as pressure-sensitive electronic sensors, to enable the ear to register acoustic sounds.

Link - via The Verge

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I'm 100% sure hearing aids aren't connected to a person's nerve endings...Also, HAs amplify sound, they do not restore it on any level.
Still, this is very cool!
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