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Category: Science
Date: 05/30/12 05:49 PM

29 Responses to Overhead Indoor Water Bottle Lighting [3 Pics]

  1. Profile photo of fancylad
    fancylad Male 30-39
    18499 posts
    May 30, 2012 at 5:51 pm
    Link: Overhead Indoor Water Bottle Lighting - Always amazed at this `invention`--does it really work this well? It`s like a 100 watt bulb.
  2. Profile photo of uatme
    uatme Male 18-29
    1068 posts
    May 30, 2012 at 5:58 pm
    If you like that you`ll love this

    Latest model of the HSL 3000, mounted on a flat roof. Dish is 4 feet in diameter, and lights 1000 square feet inside the building, minus the UV rays. Expected lifetime: 20 years.
    Link
  3. Profile photo of Tiredofnicks
    Tiredofnicks Male 30-39
    5101 posts
    May 30, 2012 at 5:59 pm
    It does, but daytime only.
  4. Profile photo of SPARTAKITTY
    SPARTAKITTY Female 18-29
    2123 posts
    May 30, 2012 at 6:00 pm
    Yes, I`ve heard about this. It`s apparently just a mixture of filtered water and bleach, and it provides a crapton of light.
  5. Profile photo of LazyMe484
    LazyMe484 Male 18-29
    10443 posts
    May 30, 2012 at 6:03 pm
    It`s like a 100 watt bulb.
    It looks way, way too dim for 100 Watts. ... you know, today, in 2012 (if you like checking calendars), you can do much more than that with 100 watts.

    ... also, it looks bright because of the contrast. Why not just replace that whole ceiling with a clear PVC sheet, if all you care about is light?
  6. Profile photo of Crabes
    Crabes Male 30-39
    1285 posts
    May 30, 2012 at 6:05 pm
    very useful during the day, worth nothing at night
  7. Profile photo of LazyMe484
    LazyMe484 Male 18-29
    10443 posts
    May 30, 2012 at 6:06 pm
    No, never mind. I`m being too harsh. I`m sure this has it`s uses... well done. *slow clap*
  8. Profile photo of FoolsPrussia
    FoolsPrussia Male 30-39
    3446 posts
    May 30, 2012 at 6:18 pm
    These are being implemented in slums. Think about the positive effect it can have on someone living in poverty.
  9. Profile photo of Ston
    Ston Male 30-39
    198 posts
    May 30, 2012 at 6:22 pm
    In areas with unstable - or highly expensive - electricity, this works. When most of the people in the areas these are used live in the equivalent of shacks, any little bit helps. Especially since the only other source of light during the day is the front door. No windows, because the 3 other outside walls of your shack are also the walls of your neighbors. I think there was a video about it here on IAB a while back.
  10. Profile photo of jbwhite
    jbwhite Male 18-29
    1292 posts
    May 30, 2012 at 6:38 pm
    ammonia and water*

    this is also old...
  11. Profile photo of OldOllie
    OldOllie Male 60-69
    15844 posts
    May 30, 2012 at 8:16 pm
    100 watts? Not even close. The sun puts out about 1361 W/m^2. The top of that bottle has an effective cross section of no more than 100 x 100 mm, which means that the energy hitting the top of the bottle is no more that 15 W. If 2/3 of that makes it down to the bottom and out into the room, you`ve got yourself 10 W of solar energy, about half of which is in the form of visible light.

    So, your 100-W pop bottle is really closer to 5 W.
  12. Profile photo of mon360
    mon360 Male 13-17
    735 posts
    May 30, 2012 at 8:31 pm
    invention? it`s just a bottle in the ceiling
  13. Profile photo of lawndartsftw
    lawndartsftw Male 40-49
    1811 posts
    May 30, 2012 at 8:41 pm
    This solves a third world problem, not a first world one...
  14. Profile photo of pergas
    pergas Male 18-29
    27 posts
    May 30, 2012 at 9:37 pm
    i thouhght it was bleach and water, and used mainly in slums with no electricity/wondows. 100watts is probably what it seams like after near total darkness
  15. Profile photo of OldOllie
    OldOllie Male 60-69
    15844 posts
    May 30, 2012 at 10:09 pm
    i thought it was bleach and water...
    It is. The bleach doesn`t really affect the optical properties. It`s just to keep stuff from growing in it so it stays clear.
  16. Profile photo of leesah
    leesah Female 18-29
    1566 posts
    May 30, 2012 at 11:15 pm
    I think some of you were imagining these in a very wrong context. Why not replace the whole ceiling with PVC, really? Replace the roof of the dirt shack?
  17. Profile photo of Buiadh
    Buiadh Male 30-39
    6739 posts
    May 31, 2012 at 12:05 am
    Was the video of this not posted last year..?
  18. Profile photo of Johanvb
    Johanvb Male 40-49
    496 posts
    May 31, 2012 at 2:52 am
    @ leesah,

    The cost of a PVC bottle (free on the trash-heap) is far less than the cost of a sheet of transparent PVC the size of a roof (you`ll pay something in the line of $25 per m2 for a 5 mm thick plate i estimate). So only a window size hole would be expensive.
    On top of that, a PVC plate the size of your roof has to be very thick and thus more expensive.

    I have never traveled to a third world country but i will take on a bet that a Homedepot that sells, delivers and installs these PVC sheets (a sheet the size of your roof will be to heavy to handle on your own without equipment) is hard to find.

    These PVC bottle solutions are very easy to implement against very low costs.
    Solutions for the third world aren`t found looking at it from your point of view with your possibilities in mind, you must look at it from their point of view with their possibilities in mind.
    Remember their Homedepot is called trash-heap.
  19. Profile photo of Rick_S
    Rick_S Male 40-49
    3275 posts
    May 31, 2012 at 6:04 am
    "100 watts? Not even close. The sun puts out about 1361 W/m^2. The top of that bottle has an effective cross section of no more than 100 x 100 mm, which means that the energy hitting the top of the bottle is no more that 15 W. If 2/3 of that makes it down to the bottom and out into the room, you`ve got yourself 10 W of solar energy, about half of which is in the form of visible light.

    So, your 100-W pop bottle is really closer to 5 W."

    Wattage isn`t a measure of how much light, but how much electricity. A 100 watt bulb might put out 1,700 lumens. Direct sunlight is 32,000–130,000 lumens/meter squared on a sunny day. Using your numbers, the surface area of the cross section would be 0.0079 meters squared, which would give between about 251 lumens and 1,000 lumens, or between 25 and 60 watt light bulb equivalent.

    But I think the bottle acts a little like a fiber optic cable, and gets more sunlight than just the cross section. I`d say 1,700 lu
  20. Profile photo of Thetas
    Thetas Male 18-29
    1540 posts
    May 31, 2012 at 7:29 am
    But it still only works during the day.
  21. Profile photo of Gerry1of1
    Gerry1of1 Male 50-59
    36182 posts
    May 31, 2012 at 7:51 am

    They needed help to figure out how to put a window in?
    No wonder they`re 3rd world.
  22. Profile photo of leesah
    leesah Female 18-29
    1566 posts
    May 31, 2012 at 9:05 am
    "I have never traveled to a third world country but i will take on a bet that a Homedepot that sells, delivers and installs these PVC sheets is hard to find. "

    I was responding to LazyMe, who suggested that these bottles are impractical because you could "just replace your roof with a clear PVC sheet", thus he was "imagining these in a very wrong context", aka clearly not a third-world one. Reading comprehension bro, you need to work on it.
  23. Profile photo of LordJim
    LordJim Male 60-69
    6648 posts
    May 31, 2012 at 11:18 am
    Obviously it only works in sunlight, but for people working in a shack all day this is a boon. Whoever developed it (call it an invention or not) has done a wholly good thing.
  24. Profile photo of spanerbulb
    spanerbulb Male 30-39
    1244 posts
    May 31, 2012 at 11:41 am
    Rick_S, not sure how a fibre optic cable can transport more light than can get in through one end, care to explain? BTW not being pissy but you seem to know your stuff and I`m interested.
  25. Profile photo of 5Cats
    5Cats Male 50-59
    31766 posts
    May 31, 2012 at 12:33 pm
    It`s from the slums in the Fillipines, (iirc) some group trying to improve their living conditions goes around putting them in, for free of course.
    Many of these women do home sewing in near darkness for income, these lights really help!
  26. Profile photo of OldOllie
    OldOllie Male 60-69
    15844 posts
    May 31, 2012 at 4:08 pm
    @spanerbulb Don`t sell yourself short. I think you understand things pretty well.
  27. Profile photo of MattPrince
    MattPrince Male 40-49
    2220 posts
    May 31, 2012 at 4:29 pm
    You can`t have more out, than has gone in, but with the coke bottle incident light is falling on a lot more than the cross section.

    In any case the wattage is irrelevant, the difference this can make to someting as efficent as the mk1 eyeball is pretty neat. Without any of the heat problems you`d get in calcutta with 4 square metres of see through plastic..
  28. Profile photo of kornista
    kornista Male 18-29
    2 posts
    May 31, 2012 at 7:51 pm
    you have to put Bleach in the water to work... bleach makes light beans bounce all over... with just plain water, it would only `go thru`
  29. Profile photo of 8BitHero
    8BitHero Male 18-29
    5414 posts
    June 1, 2012 at 5:08 am
    Wouldn`t it melt the plastic?

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