I just dropped the price of
the permaculture playing cards
for a wee bit.

 

 

uses include:
- infecting brains with permaculture
- convincing folks that you are not crazy
- gift giving obligations
- stocking stuffer
- gambling distraction
- an hour or two of reading
- find the needle
- find the 26 hidden names

clickity-click-click

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Solar steam engine from 1936  RSS feed

 
Wyatt Smith
Posts: 111
Location: Midwest zone 6
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tel jetson
steward
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Location: woodland, washington
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there are a few examples of modern day concentrated solar power outfits on the good old wikipedia.

looks like the first patent for a solar steam engine was given in 1886 while the first one was built in 1866.

I can't imagine that obtaining the materials involved is ecologically benign, but I suspect that these might beat photovoltaics when considering negative impacts.
 
solomon martin
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This is a cool concept.  I have recently been looking at parabolic mirror boilers on Youtube, some of them are totally DIY and made with recycled/salvage material.  One fellow in Colorado made a large parabolic array that runs a 12kw generator.
 
Everybody's invited. Even this tiny ad:
Permaculture Playing Cards by Paul Wheaton and Alexander Ojeda
https://permies.com/wiki/57503/digital-market/digital-market/Permaculture-Playing-Cards-Paul-Wheaton
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