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Alfredo Moser: Bottle light inventor proud to be poor
BBC News Magazine, BBC World Service, Uberaba, Brazil ^ | 12 August 2013 | By Gibby Zobel

Posted on 09/05/2013 9:11:08 AM PDT by PrayAndVoteConservesInLibsOut

Alfredo Moser's invention is lighting up the world. In 2002, the Brazilian mechanic had a light-bulb moment and came up with a way of illuminating his house during the day without electricity - using nothing more than plastic bottles filled with water and a tiny bit of bleach.

In the last two years his innovation has spread throughout the world. It is expected to be in one million homes by early next year.

So how does it work? Simple refraction of sunlight, explains Moser, as he fills an empty two-litre plastic bottle.

"Add two capfuls of bleach to protect the water so it doesn't turn green [with algae]. The cleaner the bottle, the better," he adds.

Wrapping his face in a cloth he makes a hole in a roof tile with a drill. Then, from the bottom upwards, he pushes the bottle into the newly-made hole.

"You fix the bottle in with polyester resin. Even when it rains, the roof never leaks - not one drop."

The lamps work best with a black cap - a film case can also be used "An engineer came and measured the light," he says. "It depends on how strong the sun is but it's more or less 40 to 60 watts," he says.

(Excerpt) Read more at bbc.co.uk ...


TOPICS: Local News; Science; Society
KEYWORDS: invention
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To: Tenacious 1

Also, how well does this work in the winter when they freeze? How well does it insulate?

.........Probably not an issue in the slums of India, African huts or tin shacks of Haiti.

And I doubt they last very long before leaking starts

.........Their shacks probably already leak.

Also, what if you don’t have cathedral ceilings for the “water filled skylight”?

........Most shacks in these areas do have “cathedral ceilings”.

Probably not the best idea for 90% of Americans, although I just might try this out in my shed, which I never did get around to wiring for electric.


41 posted on 09/05/2013 10:11:33 AM PDT by 21twelve ("We've got the guns, and we got the numbers" adapted and revised from Jim M.)
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To: ansel12; Tenacious 1
That has to be the most loser, whiner post that I have seen in a long time.

I agree with you ansel12.

42 posted on 09/05/2013 10:12:24 AM PDT by rawhide
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To: agere_contra

Thanks for this info. Also, to those interested, the article explains it this way:

“Refraction is the bending of light, which is caused by a change in its speed.
The speed of light is determined by the density of the substance through which it passes.
So refraction occurs when light passes from one substance to another with a different density - eg from air to water
In the case of the “Moser lamp”, sunlight is bent by the bottle of water and spread around the room.

Thanks for posting everyone.


43 posted on 09/05/2013 10:13:18 AM PDT by PrayAndVoteConservesInLibsOut (PRAYING FOR AMERICA EVERY DAY!)
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To: PrayAndVoteConservesInLibsOut
The big problem I have seen with these ‘lights’ is the photo-reactive property of plastic. It breaks down and falls apart at various rates, depending on the intensity of the sun. In the tropics, I would give it a year. then you work to replace them or you have gaping holes in the roof to let the rain rot the wooden structure....Glass bottles would be better than plastic.
44 posted on 09/05/2013 10:14:16 AM PDT by ArtDodger
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To: null and void
Then I suggest VERY STRONGLY that you do not use this invention.

No worries on that score.

45 posted on 09/05/2013 10:16:57 AM PDT by from occupied ga (Your government is your most dangerous enemy)
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To: rawhide; 21twelve

Please reference post #26 for my contextual opinion recantation. I capitulate that I missed the point of the innovation with respect to the potential benefactors.

(I will wear this douche bag on my head for the rest of the day as punishment)


46 posted on 09/05/2013 10:18:16 AM PDT by Tenacious 1 (Waiting for next tagline.)
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To: xjcsa

settlers did this in the USA west.

everything old is new again.


47 posted on 09/05/2013 10:19:28 AM PDT by longtermmemmory (VOTE! http://www.senate.gov and http://www.house.gov)
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To: Leaning Right

glad i’m not the only one to make that connection...but i bet the bottles run low on water after a while... what then? do you have to go up[ on the roof periodically to refill them?


48 posted on 09/05/2013 10:19:57 AM PDT by camle (keep an open mind and someone will fill it full of something for you)
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To: agere_contra
The thing is you have extended the 'light-catching area' above the roof

NOT if you look at the pictures in post 10.

49 posted on 09/05/2013 10:20:39 AM PDT by from occupied ga (Your government is your most dangerous enemy)
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To: agere_contra; from occupied ga

This sounds to me like it work a lot like those little, round skylights that they sell. A lot more light enters the room than just the diameter of the hole because there are reflectors inside the shaft that enhance the light.

http://www.solatube.com/


50 posted on 09/05/2013 10:20:41 AM PDT by afraidfortherepublic
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To: afraidfortherepublic
A lot more light enters the room than just the diameter of the hole because there are reflectors inside the shaft that enhance the light.

You're not familiar with the first law of thermodynamics are you?

51 posted on 09/05/2013 10:21:49 AM PDT by from occupied ga (Your government is your most dangerous enemy)
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To: longtermmemmory
settlers did this in the USA west.

Settlers in the west had clear plastic 2-litre bottles? ;o)

52 posted on 09/05/2013 10:21:51 AM PDT by Tenacious 1 (Waiting for next tagline.)
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To: Uncle Chip

Yes, cover them with a bucket.


53 posted on 09/05/2013 10:25:51 AM PDT by bgill (This reply was mined before it was posted.)
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To: from occupied ga

54 posted on 09/05/2013 10:26:59 AM PDT by afraidfortherepublic
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To: GeronL

Many Americans would be surprised to learn how many Southern California ceilings are the roof, no attic, no insulation, no second layer of any kind.

Even in many of our expensive older homes in the wealthiest neighborhoods, the boards you see when you look up in the living room, is the roof.


55 posted on 09/05/2013 10:27:11 AM PDT by ansel12 ( Libertarians, the left's social agenda with conservatism's economics, which is impossible of course)
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To: Cold Heart

When they leak, mop the floor.


56 posted on 09/05/2013 10:27:24 AM PDT by bgill (This reply was mined before it was posted.)
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To: 21twelve

Well, I like it. Did the same thing to light the inside of our “forts” when I was a kid. Dad showed us how to do it. Learned it in Boy Scouts. He was an Eagle scout. This was 40 years ago for me and 70 for him. Oh well, what was old is new again. Wish I would have known I could have changed mankind tho. Might have changed my outlook on life.


57 posted on 09/05/2013 10:29:10 AM PDT by saleman
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To: Tenacious 1

Yes it does, but I can offer some more clarification on this great, utterly fantastic idea which is suitable for barns and sheds in the US.

I you live in a place where a quart of water that is 3/4s inside of a building will freeze, then it isn’t practical, or you can throw some insulation over it for those days, like we do with our water pipes in much of the United States. I also wonder about adding a little alcohol.

The plastic should last for years, and when it is time, replace the bottle and at night time these will also let in light.

This is vastly superior to when many Americans just used empty bottles to make a dim window.

I have been meaning to get around to using these myself since I first read of it.


58 posted on 09/05/2013 10:29:53 AM PDT by ansel12 ( Libertarians, the left's social agenda with conservatism's economics, which is impossible of course)
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To: Tenacious 1

They all died from drinking what was in it-more than 16 ounces of soda!


59 posted on 09/05/2013 10:32:37 AM PDT by TurboZamboni (Marx smelled bad & lived with his parents most his life.)
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To: from occupied ga

You obviously didn’t read the article. These people can’t afford electricity much less window glass. These put out as much light as a 40+ watt bulb. There is no need to be so negative. Check out this link for good videos on these.

http://www.theblaze.com/stories/2013/08/14/this-guy-used-only-a-plastic-bottle-and-water-to-create-light-like-that-of-a-60-watt-bulb/


60 posted on 09/05/2013 10:33:18 AM PDT by bgill (This reply was mined before it was posted.)
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