using a 2 litre bottle as a 50 watt light bulb

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Picture of doubledesperado27 achievements

+40 1. doubledesperado commented 11 years ago

Genius 8-)
Picture of KeltveX21 achievements

+11 2. KeltveX commented 11 years ago

natural light bulb 8-)
Picture of j000z1132 achievements
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-13 3. j000z11 commented 11 years ago

Lol lets hope it doesnt rain huh.
Picture of banzemanga46 achievements

+26 4. banzemanga commented 11 years ago

#3 According to them, it doesn't leak when it rains. Looks like they sealed it properly.

However, like you said, the only problem would still be on rainy or cloudy days where sun light doesn't shine much.

Another limitation are buildings with multiple floors where only the top floor can take most advantage of this.

Still, regardless it was a very clever idea specially in third world countries where they cannot afford having electricity running all the time.
Picture of Koolxxx16 achievements

+5 5. Koolxxx commented 11 years ago

What if the need a light at night time
Picture of loadrunner54 achievements

+3 6. loadrunner commented 11 years ago

Only works during daytime. but very good invention.
Picture of Nifen34 achievements

+5 7. Nifen commented 11 years ago

Was it just me, or were all those roof's asbestos?

I don't think i'd be cutting into them personally...
Picture of Kendiana29 achievements

+11 8. Kendiana commented 11 years ago

It's people like these, from every corner of the world that give me confidence in the fact that sooner or later someone will come up with an idea or discovery, that will solve the worlds energy issues. Ya gotta admit it, the world has a lot of smart people in it. :)
Picture of Koolxxx16 achievements

+18 9. Koolxxx commented 11 years ago

The fact that the bottle doesn't light up during night isn't really a flaw because it only does what it's designed for. This is actually a great idea. This would work in lots of? workshops, garages or tool sheds.

In the so called first world countries there is an commercial version of those bottles using fiber optic to? bring sun light indoor, it's insanely expensive and works exactly the same way. Smart people using junk to solve a problem is all the way a better idea.

The video is interesting, especially the final scene where they showed a "before" and "after," but for the most part it doesn't explain how it actually works. What does the bleach do in the process? How does one really make it? Why do you need to "cover the cap"? Why does one need water/bleach in there at all, rather than just a plastic opening to let sunlight in? Still, it's great that this innovation has been introduced....
Picture of Neococo23 achievements

+8 10. Neococo commented 11 years ago

#9 my guess on the bleach is that the water they filled the bottles with is not sterile, so the bleach will prevent algae or bacteria from clouding up the water and getting the bottle dirty, which would obscure the light.
as for protecting the lid... perhaps they put some extra sealant under that film cap to make sure the water never evaporates out, and the normal original cap just wasn't good enough?
Picture of huldu34 achievements

+4 11. huldu commented 11 years ago

Very nice invention indeed. Most of us probably use regular lights even during daytime and that isn't for free. Of course this is not too great in a several floor building. I guess you could make it work by using mirrors to reflect the light towards a bottle.

I know when im out in a shed or garage i am forced to turn the lights on even at daytime. Very clever solution really.
Picture of FunnyMan15 achievements
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-16 12. FunnyMan commented 11 years ago

I'll introduce them to another 'invention'. It's called the skylight.
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-10 13. LQoQK commented 11 years ago

so, what about windows?
Picture of Voutelamberopipi36 achievements

+8 14. Voutelamberopipi commented 11 years ago

#12 and #13, why don't you two hold hands and go have a cup of stfu?

Great solution, especially for a working place.
Picture of draxenn31 achievements

+2 15. draxenn commented 11 years ago

#12 Compare the cost of installing a skylight and the cost of these bottles.
You'll find there's a significant price difference between them yet they both produce ample light.
Picture of santhihere26 achievements

+1 16. santhihere commented 11 years ago

Wow 8-) going green. will try this.
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+6 17. irishgek commented 11 years ago

I think the cops would notice this on my "tomato" grow room thow all those bottles out the roof
Picture of FunnyMan15 achievements
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-8 18. FunnyMan commented 11 years ago

#15. I agree that the cost of installing a 'proper' skylight in these circumstances would be prohibitive. But... the cost of cutting a crap hole in the roof and covering it with a crap square piece of transparent plastic which looked crap and occasionally leaked when it rained, would be comparable in price to this crap bottle idea, AND let more light through.
Picture of Nightcamo30 achievements

+2 19. Nightcamo commented 11 years ago

This is very smart and I think it could even be improved.
I would search for a cheaper solution for the lens at first. Maybe the bottom of a glas bottle would do the work....ahhh I'm too lazy for this.
Picture of wallie12 achievements

+5 20. wallie commented 11 years ago

More people have come up with this idea (or were inspired by this story).
Here you can find another movie on the bottle light. This video also explains the reason for the bleach and the cover over the bottlecap:
Picture of Calvinius52 achievements

+1 21. Calvinius commented 11 years ago

#5 Moonlight!! :D
Picture of Slap_chop_ninja36 achievements

+1 22. Slap_chop_ninja commented 11 years ago

The bottled water works better than a simple skylight. Simply because the water refracts and diffuses the light over a greater area.
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+2 23. diaboloo commented 11 years ago
Picture of richardleed23 achievements

+1 24. richardleed commented 11 years ago

Unfortunately, I work on the first floor. So drilling a hole in the ceiling would probably get a lot of people upset... People upstairs don't want to advertise what color of underwear they are wearing... if any.
Picture of orion27 achievements

+1 25. orion commented 11 years ago

What about a window? This is not a lightbulb, who needs light when the sun is shining?