Your head's battery
Fluids in the inner ear can actually power an electronic device, such as an implant
By Sid Perkins, 12:03 PM January 17, 2013
A natural powerhouse in the ear of guinea pigs can run a tiny electronic device, researchers show. Human ears contain that same structure, which operates like a battery. Doctors might one day use this system to power implants. Some might monitor an individual’s blood. Others could dispense medicines.
Deep within the ear of all mammals is a spiral-shaped structure called a cochlea (KOKE lee ah). It contains two storage regions, each filled with a different liquid. One fluid contains dissol...
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