On 14/08/2013 14:08, Dave Liquorice wrote:
On Wed, 14 Aug 2013 12:15:46 +0100, Ragnar wrote:

http://www.di-ve.com/news/invention-lights-world

Not exactly a 'lamp' though is it? It just reflects the sunlight through
a hole in the roof.

Refracts BWTH. B-)

After sunset you're in the dark.

This is true, I wonder whay they don't build their shacks with
windows? I guess they are so packed together that light doesn't
penetrate to the sides very much.

the cost and availability of glass?