Skip to comments.Alfredo Moser: Bottle light inventor proud to be poor
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 ...
Diaz says you can find Moser lamps in some remote island communities. "They say, 'Well, we just saw it from our neighbour and it looked like a good idea.'" People in poor areas are also able to grow food on small hydroponic farms, using the light provided by the bottle lamps, he says.
Overall, Diaz estimates, one million people will have benefited from the lamps by the start of next year.
"Alfredo Moser has changed the lives of a tremendous number of people, I think forever," he says.
"Whether or not he gets the Nobel Prize, we want him to know that there are a great number of people who admire what he is doing."
Did Moser himself imagine that his invention would have such an impact?
"I'd have never imagined it, No," says Moser, shaking with emotion.
"It gives you goose-bumps to think about it."
Light to work in Bangladesh
Most homes and businesses in the slums of Dhaka have no power and no windows, so 80-90% of them hook up to electricity lines illegally - and fall back on candles or kerosene lamps during regular blackouts.
A voluntary organisation called Change began distributing the bottle light, or botul bati, earlier this year. It's helped hundreds of people - including sari makers and rickshaw repairers - whose livelihoods depend on having sufficient light.
There were teething problems. "Some people said they felt poorer after installing a bottle light," says Change founder Sajid Iqbal. The group counters this by stressing that each one helps tackle climate change.
Unlike some other charities, Change charges a small amount for the lights - roughly the price of 2-3kg of rice. "If you give the light for nothing, people don't maintain them," Iqbal says. "They don't understand their value."
Great story, but these envirof***ers ruin everything.
Can you turn them off when you want to go to sleep???
True to my nature, I got totally wrong visual reading this.
More than a sky light, more like a deck prism. Much better illumination than a mere hole in the roof.
It’s not a BFD to the likes of you and me who have ready access to cheap and reliable electricity, but for most of the world it really is a BFD.
you nailed it !!! hahhh!!! there’s the rub..
Wait, where’s the government in this? Mr. Moser needs their help.
What an awesome idea. And the part about a small charge is also critical. Teaching a man to fish does not mean giving him an unlimited supply of line and hooks.
Eventually they will leak. Guaranteed
That was my question too. Also, how well does this work in the winter when they freeze? How well does it insulate? And I doubt they last very long before leaking starts considering the degradation of plastic from UV and the constant expansion and contraction associated with the warming and cooling.
Also, what if you don't have cathedral ceilings for the "water filled skylight"? Who thought this was a good idea again?
Or turn them on when you need to go get up to take leak in the middle of the night.
They probably have to wear an eye mask!
And if it bursts, there is the boiling water rain to experience.
Sailing ships had glass prisms in the deck to distribute light to lower decks.
That this is made out of what is essentially garbage is new, but it replaced ‘going outside’ for most users.
Expect more insanity as less sociable poor people stay in their homes rather than being in a social situation getting feedback.
You’re right. There are just too many problems. Better to sit in the dark.
Manila is famous for its cold winters!
Thanks OP for posting this. This invention is amazing!
Seriously low chance of freezing in Brazil, along the equator. The temperature is quite constant, like in Hawaii, limiting the expansion and contraction issue. And less tramatic than having to bury your kid when your jerry-rigged stolen electricity short-circuits.
That has to be the most loser, whiner post that I have seen in a long time.
Iqbal for POTUS!!!
Then I suggest VERY STRONGLY that you do not use this invention.
Fair enough. My perspective was the practicality of me being able to use this technology. With respect to poor Brazilians, this is brilliant.
Does this clarification post get me out of the "loser whiner post" stable? :o)
Thank you for forcing me to reconsider the context of the story.
Actually, If I understand it right, it is refracted light, which takes the light from inside the bottle and then illuminates the surrounding area as would a 40 watt bulb. So at night unless the moon is bright, there probably still is darkness. ZZZZZZZZZZZZZZZZ
i was thinking a ship’s deck prism.
I can't speak for Ansel12, but it does for me.
combo of that and the solartube idea.
it will be when the shtf.
The thing is you have extended the 'light-catching area' above the roof. So you have increased the amount of light coming through the roof at all times of day except noon.
Anything that stupid he deserves to be poor!!
My brother bought a condo that has 2 solartubes installed. One is in the kitchen right over the prep area and the other is over the entryway. It is amazing how much light they put out. We haven’t checked how but they also put out light at night, like a very bright nightlight.
They actually are super cool but I checked and they are kind of expensive.
This is great for 3rd world countries, not like he’d get rich with something like this though.
tin roof shanties in 3rd world countries don’t generally have attics
Now this is what my old Engineering Professor would call, “elegant”. Very simple, yet very effective.
Obviously not for houses like ours, but a tremendous advance for third world folks who can’t get/afford electricity but need light during the day.
(P.S. I’m often a pretty cynical guy. If I shake MY head at your cynicism, you have a problem, in my opinion. This guy is not a politician, he’s not trying to be famous or rich, and he’s not claiming he’s found the solution to the world’s energy problems. He’s also not trying to sell you on it. HE’S JUST OFFERING HELP TO PEOPLE WHO NEED IT. So all you “so what” guys out there, please just take a deep breath, and realize, not everything deserves to be reviled.)
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.
I agree with you ansel12.
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.
No worries on that score.
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)
settlers did this in the USA west.
everything old is new again.
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?
NOT if you look at the pictures in post 10.
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.