Let there be light

[vetran]

Helps how exactly, rather than just parroting the article? Wouldn't a faceted bulb distribute the light even more effectively?

A faceted bulb would work better but discarded coke bottles are 'free' water & Bleach nearly free.

[d000hg]

But they look bloody stupid. You could produce commercial units for a few pence since they wouldn't need a filament or to be pressurised.

[NotAllThere]

So does a hole in the roof suck more light into a room when you glue a bottle to it? Wouldn't you be better just having a window/skylight?

Windows cost money. Drilling a hole in the roof is considerably cheaper. When you're really poor you don't give a flying **** what it looks like.

[vetran]

But they look bloody stupid. You could produce commercial units for a few pence since they wouldn't need a filament or to be pressurised.

its a free way to give dirt poor farmers light in their shacks and avoids them burning poisonous fossil fuels in their huts for lights.

[eek]

But they look bloody stupid. You could produce commercial units for a few pence since they wouldn't need a filament or to be pressurised.

Yes but its costs money add transportation and it more money. Discarded drinks bottles are free and everywhere.

[d000hg]

its a free way to give dirt poor farmers light in their shacks and avoids them burning poisonous fossil fuels in their huts for lights.

I thought dirt poor farmers went to sleep when it was dark. This approach has worked for thousands of years, long before the invention of electric lighting or gas/oil lamps.

[d000hg]

Discarded drinks bottles are free and everywhere.

Maybe where you live

[vetran]

I thought dirt poor farmers went to sleep when it was dark. This approach has worked for thousands of years, long before the invention of electric lighting or gas/oil lamps.

this is during the day, early evening when they make clothes or the kids dinner, or the rainy season.

Bottles are free in the poor areas soft drink's manufacturers give them away free or sell them very cheap to people who litter them or they can be recycled locally.

[lilelvis2000]

Neat. my allotment shed could use a couple of those.

thanks.

[d000hg]

What if you make a double-ended one, I wonder - another bottle outside the roof. Wouldn't that collect light from a greater area?

Or a shiny funnel I'm patenting a funnel covered in kitchen foil...