A Litre of Light - sheer genius!

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A Litre of Light - sheer genius!

Postby Jan Van Quirm » Mon Aug 26, 2013 4:36 pm

You Tube link (can't get it to load :evil: ) http://www.youtube.com/watch?v=o-Fpsw_yYPg#t=119 - this is amazing and so simple!
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Re: A Litre of Light - sheer genius!

Postby Tonyblack » Mon Aug 26, 2013 4:40 pm

Try this :)

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Re: A Litre of Light - sheer genius!

Postby Ghost » Mon Aug 26, 2013 4:49 pm

it's a beautiful simple idea
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Re: A Litre of Light - sheer genius!

Postby Jan Van Quirm » Mon Aug 26, 2013 4:57 pm

Tonyblack wrote:Try this :)


Cheers Tony - :D I thought I'd tried that combo but may have been distracted by our 'ringer' springer/collie - he's lovely though! :lol:
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Re: A Litre of Light - sheer genius!

Postby raisindot » Mon Aug 26, 2013 5:28 pm

Neat idea--although I'd be a bit worried about anything with bleach in it hanging over my head. If the thing fell and burst open, that's a whole lot of damage waiting to happen. Wonder if the bleach is really needed or whether something less lethal could take its place. On the other hand, "bleach risk" is probably a pretty low risk factor given all the other challenges these people face every day....
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Re: A Litre of Light - sheer genius!

Postby Jan Van Quirm » Mon Aug 26, 2013 8:04 pm

From the video it looks as though it's mostly distilled/purified water with a dash of bleach - probably no more than you'd put in a 'white' wash for clothes
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Re: A Litre of Light - sheer genius!

Postby Dotsie » Mon Aug 26, 2013 8:06 pm

And your hair would look real classy ;)
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Re: A Litre of Light - sheer genius!

Postby The Mad Collector » Mon Aug 26, 2013 8:09 pm

I heard an interview with the inventor of these a few weeks ago on the BBC World Service. Really nice guy and totally surprised when someone representing a charity in the Philipines joined the conversation and said how wonderful he was
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Re: A Litre of Light - sheer genius!

Postby Tonyblack » Mon Aug 26, 2013 8:12 pm

How does this actually work? I'm guessing it only works during daylight and transfers to the sunlight outside, inside. :think:
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Re: A Litre of Light - sheer genius!

Postby The Mad Collector » Mon Aug 26, 2013 9:19 pm

Yes it does, but the point is that most buildings in the third world don't have large windows, if they have any at all, so the problem is getting light into the main body of the building during the day. This is really effective as the bottles glow like 60W bulbs and mean that they don't need electricity for lighting
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Re: A Litre of Light - sheer genius!

Postby Conforumist » Mon Aug 26, 2013 11:46 pm

I would guess that the bleach keeps the water and inside of the bottle from turning green (algae build-up)?

Edit,
Oh, very cool BTW! :clap:
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Re: A Litre of Light - sheer genius!

Postby Sister Jennifer » Tue Aug 27, 2013 12:15 am

Fantastic, thanks for sharing.
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Re: A Litre of Light - sheer genius!

Postby ChristianBecker » Tue Aug 27, 2013 5:21 am

Yes, the bleach is in there to prevent algae, fungi and stuff from growing.
Here's an article about it
http://www.bbc.co.uk/news/magazine-23536914

Using bleach is - in the circumstances - probably the best solution, because most people will have bleach or have easy access to bleach, whereas it might be harder to get something less aggressive. An at least 20% solution of alcohol in water might work, too, but I don't know if it is cheaper. And cheap is what it's supposed to be. Else you could just install a window or use specially designed glass/ plastic cylinders that might yield more light.
I like this idea, although a bulb that only glows during daylight seemed odd at first.
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Re: A Litre of Light - sheer genius!

Postby Jan Van Quirm » Tue Aug 27, 2013 10:24 am

One of the old ladies in the vid said that she just slept in her room - everything else including cooking mostly has to be done outside in the street because it's too dark period to do anything practical inside as you can't see well enough by combustible light (oil lamps or naked flame) and trip over stuff, not to mention the fire risk...

At least this way they can do stuff inside during daylight hours (v. handy in monsoon season) - night time's for sleeping in the Third World ;)
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Re: A Litre of Light - sheer genius!

Postby Bouncy Castle » Tue Aug 27, 2013 10:31 am

Bloody brilliant idea.
Some are born great, some achieve greatness and some have greatness thrust upon them.

The rest of us are a bit crap.
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