Thursday, 23 October 2008

Earthships and solar ponds...

Was watching a documentary all about earthship houses while ironing, haven't finished it yet (ran out of t-shirts) but was beguiled by their gorgeously uplifting optimistic guilt-free greeness, quirky build and beautiful bottleglass walls. Was looking up something else and came upon the concept of solar ponds where water saturated with salt absorbs and retains heat for longer and now my mind is thinking of those walls full of empty glasss bottles and wondering if there isn't a way to fill them with a saturated salt solution to increase solar absorption... perhaps it only works on a large scale. There is an Earthship up in Scotland, you can find out about it here.

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