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posted by martyb on Thursday July 09 2015, @02:06AM   Printer-friendly
from the Lindsay-Wagner-says-she-has-first-dibs dept.

In case you can't get enough news about graphene:

As a species, humans have evolved to have certain strengths and weaknesses. While we don't have the sonar-like range finding capabilities of bats or dolphins, we do have the brains to engineer a device that can give that capability to us.

Researchers at the University of California, Berkeley have done exactly that in their development of tiny ultrasonic microphones made from graphene.

[...] At only one atom in thickness, graphene possesses the key properties of strength, stiffness, and light weight; so it is extremely sensitive to a wide-range of frequencies. In this case, the microphone can pick up frequencies from across the human hearing range—from subsonic (below 20 hertz) to ultrasonic (above 20 kilohertz)—and as high as 500 kHz. (A bat hears in the 9 kHz to 200 kHz range.)

Daredevil, here we come!

 
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  • (Score: 3, Interesting) by seeprime on Thursday July 09 2015, @05:05AM

    by seeprime (5580) on Thursday July 09 2015, @05:05AM (#206799)

    I agree. It would be far more wondrous if humans were able to regrow or replace old or dead hair cells to restore lost hearing after the age of 35. I would love to hear the sizzle, and not just the crash, of a live cymbal again. I do not need a hearing aid. I just want to hear the top octave, of 10kHz to 20kHz, like I did when I was in my 20's. Growing old may bring wisdom, but the physical costs of aging suck.

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  • (Score: 2) by c0lo on Thursday July 09 2015, @09:19AM

    by c0lo (156) Subscriber Badge on Thursday July 09 2015, @09:19AM (#206885) Journal

    I just want to hear the top octave, of 10kHz to 20kHz, like I did when I was in my 20's. Growing old may bring wisdom, but the physical costs of aging suck.

    Have a bit of patience... I can assure you it will come a time where you'll start to hear that sizzle again... and again... until it's continuous... except it won't be caused of any cymbal, it will be the tinnitus caused by hypertension.

    --
    https://www.youtube.com/watch?v=aoFiw2jMy-0 https://soylentnews.org/~MichaelDavidCrawford