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    • CommentAuthorLakes
    • CommentTimeSep 20th 2015
     
    Spin up the Laser Cannon! :)
    • CommentAuthorAsterix
    • CommentTimeSep 20th 2015 edited
     
    On a ship, it actually makes sense. After all, don't many ships employ gyroscopic stabilization? Cruise ships certainly do. I'd assume that a flywheel could do double duty both as a stabilizer and as energy storage.
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      CommentAuthorAngus
    • CommentTimeSep 20th 2015
     
    I believe a flywheel is pretty good for releasing a lot of stored energy quickly. Good for guns.
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      CommentAuthorDerrickA
    • CommentTimeSep 20th 2015
     
    Also, I imagine ruggedness and efficiency would rate more highly than energy density on board a ship.
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    I can't disagree. In fact characterising any energy storage system needs at least these 10 parameters:
    $/J
    $/W
    J/Kg
    W/Kg
    J/m3
    W/m3
    Energy efficiency
    Power efficiency
    MTBF
    Operating conditions
    • CommentAuthortinker
    • CommentTimeSep 20th 2015
     
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      CommentAuthorAngus
    • CommentTimeSep 20th 2015
     
    Gosh thanks.
    Now if SteornLabs could come up with something useful like that...
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    Fascinating.

    Whatever it's for, I'll bet it is useful. And expensive.

    (And since I don't know what it's for, I probably don't need one.)
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      CommentAuthorDerrickA
    • CommentTimeSep 20th 2015 edited
     
    Posted By: Angus
    Now if SteornLabs could come up with something useful like that...


    Well, there was this...
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      CommentAuthorAngus
    • CommentTimeSep 20th 2015
     
    I know. That's why I said it.
    There's test equipment, and then there's imitation test equipment.
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      CommentAuthorAngus
    • CommentTimeSep 20th 2015 edited
     
    Posted By: alsetalokinWhatever it's for, I'll bet it is useful. And expensive.


    True on all counts. It just measures how much light is emitted from something (lasers, fluorescent paint). In all directions and over a very wide spectral ranges. Then you can compare how many electrons go in to how many photons come out.
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      CommentAuthorDerrickA
    • CommentTimeSep 20th 2015
     
    I remember, I parodied that one, some years back...
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      CommentAuthorAngus
    • CommentTimeSep 20th 2015 edited
     
    Flip it up sideways and you can have a doner machine. Fantastic!

    But it is remarkable how much effort they put into making a machine to measure something nobody wants to measure.
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    That's brill, DerrickA
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      CommentAuthorDerrickA
    • CommentTimeSep 20th 2015
     
    Posted By: AngusBut it is remarkable how much effort they put into making a machine to measure something nobody wants to measure.


    It's easier to justify a big price tag with a big box. Hence, easier to convince investors of a sure return, while you burn through their cash.
  5.  
    I naturally thought of a shipping container when you mentioned that.

    Then I thought of Rossi.
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      CommentAuthorDerrickA
    • CommentTimeSep 20th 2015
     
    Posted By: Andrew PalfreymanThat's brill, DerrickA


    Thanks, and credit to joshs, who suggested adding the "As seen on TV" tag.
  6.  
    Posted By: Angus
    Posted By: alsetalokinWhatever it's for, I'll bet it is useful. And expensive.


    True on all counts. It just measures how much light is emitted from something (lasers, fluorescent paint). In all directions and over a very wide spectral ranges. Then you can compare how many electrons go in to how many photons come out.


    In that case, I suppose I do need one. We are currently interested in the efficiency of certain LEDs under various driving conditions.

    Hopefully it works a little better than one of these:
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      CommentAuthorAngus
    • CommentTimeSep 21st 2015
     
    Well there you go. My finder's commission is 10%.