Bottles used to light poor communities

If you find this interesting, you may be interested in previous discussions:

It has been submitted many more times, mostly with no significant discussion, from many different sources:

Clearly a story that hackers gravitate towards, although it's interesting how little discussion it engenders.

It is an interesting concept, however perhaps it is so lo-tech that it needs no discussion.

Bottles used to light poor communities (bbc.co.uk)