Simple but bright idea ;)

[neo]

http://www.bbc.co.uk/news/magazine-23536914

 

[The Bounty Bar Kid]

Very clever and possibly life altering for some people in some countries!

[Paddy78]

Perfect for countries that get a lot of sun. I might try this in my garden shed (although it'll only work one day a year).

[BulletMagnet]

Interesting for sure, but still dark when the sun goes down

[djb55]

Why not just put a window in the roof ?

[Pnthrblkzs]

Saw that on Russell Howards TV show the other day, seriously genius stuff.

[WhackyWill]

Great Idea.

[BulletMagnet]

Why not just put a window in the roof ?

I guess a window costs a lot more than £1

[Fodder]

Why not just put a window in the roof ?

I guess a window costs a lot more than £1

And refraction wouldn't occur.......

 

Simple but genius idea, saw this on tv I though a year or so ago but it can't have been that long ago.

[wmr1980]

I saw this a few years ago when it was first reported, it's amazing to see how it has spread across the world reaching even the poorest of places.

 

As for a window, it would create more heat, and glass is expensive, furthermore if you use Perspex, which is expensive too, would cloud over. This stops moss building up thanks to the bleach, and actually refracts the light, more than just a straight window would offer, it provides illumination.