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Weird idea day - Journal of Omnifarious

Mar. 28th, 2006

11:51 am - Weird idea day

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Today seems to be a day for weird ideas for me.

New rule! New rule!

From now on, my programs that print debug messages stating that they've received a message when they receive a message from somewhere will say "For the love of God, why won't the voices leave me alone?!". That is all.

Sound lasers

Lasers work by getting a whole bunch of electrons bound to atoms in a higher energy state than they are normally in. This state can be triggered to collapse and release a photon when the electron encounters a photon of the exact frequency that it would release. This results in two photons that are travelling in the exact same direction who's wave functions exactly coincide.

This eventually cascades to all the electrons in the substance, causing them to collapse back to their lower energy state and release the energy as a photon who's wave function is in sync with all the others.

The process is often helped by having mirrors at either end of the cavity containing the substance that are a multiple of the photons wavelength apart from each other. This sets up a standing wave. The mirror at one end either has a small hole, or is only half silvered, letting the photons out.

I was in a smallish room once that had echoey walls and a very obvious resonant frequency. This means that by humming at just the right note you could set up a standing wave for sound.

The challenge would be to somehow get energy into the air of the room or the walls of the room that would only be released by sound of the appropriate frequency and would result in the sound being amplified. You could create 'sound lasers' this way. A small hum at the right frequency would suddenly cause an explosion of focused coherent sound to be released.

But, I can't think of a good way to store the energy.

Current Mood: [mood icon] amused

Comments:

From:rosencrantz319
Date:March 28th, 2006 08:25 pm (UTC)
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From:omnifarious
Date:March 29th, 2006 05:36 am (UTC)
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Not the new rule, but perhaps the sound lasers are. :-)

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From:ladon13
Date:March 28th, 2006 08:31 pm (UTC)
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shakes her head chuckling
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From:catarzyna
Date:March 28th, 2006 08:49 pm (UTC)
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Haha!
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From:omnifarious
Date:March 29th, 2006 03:02 pm (UTC)
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:-) What do you think of the sound laser idea?

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From:(Anonymous)
Date:March 29th, 2006 04:01 pm (UTC)
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What is the purpose of a sound laser?
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From:catarzyna
Date:March 29th, 2006 04:04 pm (UTC)
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Sorry, that was me... I got logged out somehow.:-(
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From:omnifarious
Date:March 30th, 2006 04:13 am (UTC)
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It doesn't have a purpose yet. :-)

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From:sassy_54
Date:March 28th, 2006 10:10 pm (UTC)
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You really need to get out more :o)
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From:omnifarious
Date:March 29th, 2006 05:44 am (UTC)
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How would that help? I would just get even more weird ideas that way. :-)

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From:klicrai
Date:March 29th, 2006 07:47 am (UTC)

That's the idea!

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The weirder *your* ideas, the more entertaining *our* reading. Three out of five of the voices in my head agree with Sassy, but they all love the new rule.
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From:omnifarious
Date:March 29th, 2006 02:54 pm (UTC)

Re: That's the idea!

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*laugh*

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From:omnifarious
Date:March 29th, 2006 02:54 pm (UTC)

Re: That's the idea!

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Is this like a poll (60% of the voices in my head) or do you really only have 5 voices? :-)

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From:(Anonymous)
Date:March 29th, 2006 08:18 pm (UTC)

Re: That's the idea!

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It *is* like a poll, (and also a pole, and also a pool now that I think about it). As to how many voices I have, it depends on which one of us you ask. I even get an excuse for a couple of them, being a Gemini and all. :-)
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From:klicrai
Date:March 29th, 2006 08:20 pm (UTC)

Got logged out

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That was me, in case you're wondering. Forgot to log in.

I wonder where those particular terms come from, anyway? "Log in/out"? It's not like the internet and lumber processing have anything in common.
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From:oniaka
Date:March 28th, 2006 10:13 pm (UTC)
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interesting... Though I can see it being a very NOT nice thing on the ear drums and hearing... if I understand what you are saying...
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From:omnifarious
Date:March 29th, 2006 05:36 am (UTC)
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No, it wouldn't be. Not nice at all.

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From:hattifattener
Date:March 29th, 2006 02:00 am (UTC)
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Maybe a tableful of small objects balanced on end, which would fall over if excited at the right frequency, thus releasing a bit of acoustic energy? The tricky part would be getting true coherent sound amplification. I can't think of a way to do that.

(Some friends and I once realized that the traditional optical properties of vampires — visibility, but invisibility in mirrors, and something to do with shadows — implied that they could be used as an optical amplifier of sorts. Trap a vampire in an appropriately-mirrored chamber and you can create a beam of light, possibly a very intense one, with no energy input.)
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From:omnifarious
Date:March 29th, 2006 05:42 am (UTC)
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That's an interesting idea. Probably a much better one than my wall full of dimples that are precisely balanced and ready to pop out at the slightest disturbance.

I was also thinking about the fact that sonoluminescence can actually result in fusion on a very small scale in some cases. If you could harness the energy released by the fusing hydrogen atoms and turn it into a compression wave that was exactly synched with the compression wave that caused the bubble to collapse in the first place, you might be able to create a fusion powered sonic laser that was very powerful.

I would really like to hear your reasoning about the vampire thing. That sounds highly amusing.

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From:omnifarious
Date:March 29th, 2006 05:53 am (UTC)

I found a paper on it!

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And they were doing something with bubbles in a liquid, but I don't think quite what I was thinking.

Saser (Sound Amplification by Stimulated Emission of Radiation)

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From:codesamurai
Date:March 29th, 2006 05:46 am (UTC)
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Hm, shouldn't that be Saser? (Sound Amplification by Stimulated Emission of Radiation)

Oh and I know this guy who has similar thoughts like that and I think he really built prototypes of his ideas, just for fun. So you're not alone in the weirdness department. heh.
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