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Thread: World's Longest Burning Lightbulb

  1. #1
    Flashaholic* Wits' End's Avatar
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    Default Over 100 years life with an incandescent

    Wasn't sure the best forum for this but thought all would be interested.


    This bulb has been burning for over 100 years. For the rest of the story check out
    Centennial Bulb

    Not a flashlight but interesting.

  2. #2
    Flashaholic* Chris M.'s Avatar
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    Default Re: Over 100 years life with an incandescent

    Actually that bulb is not the Centennial bulb. This one is:



    (live image updates every 30 seconds).

    I have a bulb in my collection of the exact type at Livermore fire station, made at the same time. It still works too, but has spent most of its time sitting in darkness somewhere. They are rare but not incredibly uncommon.

    The Livermore bulb however, is truly remarkable. Why it has lived so long has been a topic of discussion among light bulb collectors for quite some time. It would take too long to go over the points raised now, but when I`m more sober I`ll post some of the ideas that have come up.

    [img]images/icons/tongue.gif[/img] [img]images/icons/grin.gif[/img]

  3. #3
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    Default World's Longest Burning Lightbulb

    Pretty unbelieveable, this lightbulb has been burning since 1901!

    http://www.centennialbulb.org/

  4. #4
    *Flashaholic* gadget_lover's Avatar
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    Default Re: World's Longest Burning Lightbulb

    You know, I should run over to Livermore to see that before the great California Anti Incandescent bulb law gets passed.



    Daniel
    ================================================== =
    I have got to plan my procrastination better!

  5. #5

    Default Re: World's Longest Burning Lightbulb

    Yep i saw that on mythbusters, any way "WHEN " it burns out, i betcha it will winds up on ebay
    SLPP 4 AA LUX; AT-100 10 LED; ARC AAA P; photon 1;Pewter 2C M@G with LED drop in; NEXTORCH Saint HID; SF E1B; RR 2AAA headlight; Vector 1 MIL CP spotlight: Q-Beam 2 Mil CP spotlight ;Sams HID; L2D RB 100; 6P

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    Flashaholic* WAVE_PARTICLE's Avatar
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    Default Re: World's Longest Burning Lightbulb

    Not sure if this is true or not, but I've been told that current incandescent light bulbs are engineered to fail.....that all it takes is a slightly thicker filament to make the lightbulb last forever (or at least orders of magnitude longer). Myth? dunno.....


    WP

  7. #7

    Default Re: World's Longest Burning Lightbulb

    Quote Originally Posted by WAVE_PARTICLE
    Not sure if this is true or not, but I've been told that current incandescent light bulbs are engineered to fail.....that all it takes is a slightly thicker filament to make the lightbulb last forever (or at least orders of magnitude longer). Myth? dunno.....

    WP
    Not a myth. You can buy long lasting lightbulbs almost anyplace and every once in a while you'll find somebody marketing "forever" bulbs.
    The "secret" is indeed the thicker filiment.
    TANSTAAFL

    The thicker the filiment, the less light that gets put out for the same wattage.
    I have long life (7 year) bulbs in the places I don't have flourescent. They have 780 lumens and I think a normal 60 watt puts out around 1100.
    They are there because I use X-10 devices to control them.

  8. #8
    Flashaholic C4LED's Avatar
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    Default Re: World's Longest Burning Lightbulb

    Quote Originally Posted by gadget_lover
    You know, I should run over to Livermore to see that before the great California Anti Incandescent bulb law gets passed.



    Daniel
    That will be the first one to go!

  9. #9
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    Default Re: World's Longest Burning Lightbulb

    In the CA Bulb thread--I suggested for the betterment of all human kind that it be replaced with a CPFL and people can watch it with the webcam.

    -Bill

  10. #10
    *Flashaholic* gadget_lover's Avatar
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    Default Re: World's Longest Burning Lightbulb

    Quote Originally Posted by bb
    In the CA Bulb thread--I suggested for the betterment of all human kind that it be replaced with a CPFL and people can watch it with the webcam.
    I wonder about the irony of tens of thousands of people using their computer (using 300 watts or so) and all the internet resources to see a CPFL that was installed to save energy.

    The more important point is that some things are intrinsically valued just the way they are. The longest burning light should be one. After all, you would not add a catalytic converter to the first model T, would you?

    According to mapquest, it's only 10.44 miles (16 minutes) away from my house.

    Daniel
    ================================================== =
    I have got to plan my procrastination better!

  11. #11
    * The Arctic Moderator * Sigman's Avatar
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    Default Re: World's Longest Burning Lightbulb

    I know this subject has been posted before. I've seen it in a few threads, but I'm sure it's got it's own thread. If I find it, I'll close this one & we can continue there.

    Meanwhile, here's a link to the webcam on the bulb!
    Last edited by Sigman; 02-21-2007 at 04:53 PM.
    -"Must control self"-
    ....

  12. #12
    Flashaholic* benchmade_boy's Avatar
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    Default Re: World's Longest Burning Lightbulb

    i told my science teacher about this bulb and he did not believe me. but he finally got around to believing i wasnt pulling his leg.


  13. #13

    Default Re: World's Longest Burning Lightbulb

    Quote Originally Posted by WAVE_PARTICLE
    Not sure if this is true or not, but I've been told that current incandescent light bulbs are engineered to fail.....that all it takes is a slightly thicker filament to make the lightbulb last forever (or at least orders of magnitude longer). Myth? dunno.....


    WP
    Not a myth, more a half- truth. There are bulbs, that last a very long time, for applications where a failure would be critical (traffic lights), or in places where they are really hard to replace.
    These bulbs are very inefficient.
    So the bulb engineers have to decide whether the customer has to spend his money on wasted electricity or on replacing bulbs.
    Current lightbulbs are designed in a way that the total costs of illumination including electricity and replacement bulbs are the lowest possible.
    If a bulb lasted longer, one would spend more money on electricity than one would save because of longer replacement intervals.

    Cheers,

    Julez
    This message was morsed into the open end of a fiber-optic cable with a flashlight.

  14. #14
    Flashaholic* 3rd_shift's Avatar
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    Default Re: World's Longest Burning Lightbulb

    There are a few lightbulbs at my Mom's place that have been there and in regular use for over 17 years now.
    Feit Electric "130 volt" ones I got way back in 1989 at an old Home Depot I used to shop at.

    Every time I see a fixture that looks dim at her place, It's still being lit by the same Feit Electric 60 watt I put in there in 1989.
    It still provides light while I change out the other 2 failed cheapie bulbs in that same lamp fixture.

  15. #15
    Thread Killer Illum's Avatar
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    Default Re: World's Longest Burning Lightbulb

    Quote Originally Posted by Sigman
    I know this subject has been posted before. I've seen it in a few threads, but I'm sure it's got it's own thread. If I find it, I'll close this one & we can continue there.

    Meanwhile, here's a link to the webcam on the bulb!
    Sigman...you mean the thread posed back in 02?

    http://candlepowerforums.com/vb/showthread.php?t=14027

  16. #16
    * The Arctic Moderator * Sigman's Avatar
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    Default Re: World's Longest Burning Lightbulb

    Illum...you nailed it! Thanks, I'll merge the threads now!
    -"Must control self"-
    ....

  17. #17
    Thread Killer Illum's Avatar
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    Default Re: World's Longest Burning Lightbulb

    glad to be of service

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