“Sounds” of individual molecules captured

Discussion in 'General Science & Technology' started by cosmictraveler, Feb 24, 2008.

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  1. cosmictraveler Be kind to yourself always. Valued Senior Member

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    Phys­i­cists say they’ve rec­orded ti­ny vibra­t­ions of in­di­vid­ual mol­e­cules, that could be called sounds—de­pend­ing on how you de­fine sound—and put them in au­di­ble form.

    The re­sulting bell-like tones can be heard here..http://www.mpg.de/video/FilmundAudio-KdM.wmv. But the study went much fur­ther.

    The vibra­t­ions in their orig­i­nal form, sci­en­tists said, are too fast and small to hear, but oth­er­wise fit the phys­i­cal de­scrip­tion of what makes a sound: they can pro­duce si­m­i­lar vibra­t­ions in neigh­bor­ing mol­e­cules, which do the same to their neigh­bors, and so forth, spread­ing the os­cilla­t­ions out­ward.



    http://www.world-science.net/othernews/080206_molecule-sounds.htm
     
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  3. Orleander OH JOY!!!! Valued Senior Member

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    what with the **** ??
     
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  5. Stryder Keeper of "good" ideas. Valued Senior Member

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    I would guess you viewed his post initially after he'd "Cut/Pasted". It's possible that the Asterixes are a way to try and thwort articles being 'Stolen' through Cut/Paste. however as long as the article isn't reproduced in it's entirety and linked to it's root source for the most part we don't hear complaints.
     
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  7. Orleander OH JOY!!!! Valued Senior Member

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  8. zarlok Banned Banned

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    That's interesting. Many people who practice deep meditation have had dreams/visions of the unverse before creation, where they describe what they believe is energy all around them making a humming sound. A simiilar sound religious people use when praying in many cultures. Amen is thought to come from this sound too, or should I say aaaaaaaaaaaaaaaahhhhhmeeeeeeeeeeeeeeeeeeeeeeen?
     
  9. Vkothii Banned Banned

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    "Tiny vibrations of molecules" are phonons. They're otherwise called "allowed states" (modes) of vibration.
    Someone managed to store a bit of light from a laser as a phonon, and read it back.

    P.S. I remember someone has recorded the sound the Sun makes, or they've made the sound (energy) audible. It rings like a bell, too.
     
    Last edited: Feb 24, 2008
  10. cosmictraveler Be kind to yourself always. Valued Senior Member

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    I've had a ringing in my head for many years now, mostly after I drink to much!

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  11. Orleander OH JOY!!!! Valued Senior Member

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    are you sure its not that one tiny molecule inside your skull screaming out of boredom?

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  12. cosmictraveler Be kind to yourself always. Valued Senior Member

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    Could very well be but I'm not certain there's only one.

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  13. Vkothii Banned Banned

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    I've noticed transient "ringing" type noises for as long as I can remember. Sometimes it doesn't happen for ages, then I get a rash of "pings" or "gong" type sounds. It's like hearing a sudden ringing or singing sound inside my ears.
    When I learned about the structure of the inner ear and the Eustachian and tear ducts, I thought that it was because of sudden pressure changes, or something.

    It's like a sudden "on" signal, that dies away slowly, but quite loud at first. Sometimes this happens several times a day or even in an hour. Always had it, noises in my head.

    P.S. It's never a rising or falling tone -the pitch doesn't change, only the amplitude and only a single "note". But it's all over the spectrum -sometimes near middle C maybe, sometimes quite high and every note in between, but it's not tuned to A=440Hz like a piano, or anything.

    P.P.S. Maybe I should go ask for a tune-up? "They" might get a little more interested than I'd prefer though.
     
    Last edited: Feb 26, 2008
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