At one time I wanted a Volks-Aire compressor mounted on the transaxle of a tricycle 'shop truck'. Open the tap to make it drivable with an in-line two.
Else a double conversion that had a four-cylinder compressor driven by a windmill.
Vacuum-bagged basalt composites. 
edit: Can you move air from a vacuum flask/tank to a compressed air flask/bottle/tank to double dip on the energy expended? This could have implications for home power.
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.Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster
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.Because much of what is in the published literature is nonsense,
and much of what isn’t nonsense is not in the scientific literature.
-- Sabine Hossenfelder
Last edited by freebeard; 07-19-2020 at 05:21 PM..
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