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using air to push water - the old fashion way  RSS feed

 
duane hennon
gardener
Posts: 763
Location: western pennsylvania zone 5/a
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pumps?!, we dpn't need no stinkin pumps!

http://phys.org/news/2016-04-uncovered-purpose-puquios-nasca.html

Researchers believe they have uncovered the purpose of puquios in Nasca



all this time we've been building herb spirals upside down 
 
frank li
Posts: 193
Location: Michigan
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Awesome!

Especially this,

"They note that some of the puquios were so well constructed that some of them are still in use today."

 
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