Now imagine a 356,000 km long Zylon pipeline, extending from Sinus Medii at the Moon, through the L1 point to a compressor station at its end, hanging just above Earth's atmosphere.
Because the Moon's distance to the Earth varies from a minimum of 356,400 km to a maximum of 406,700 km, the height of the compressor station above the Earth would vary between 400 km and 50,700 km during one Moon's orbit of 27.3 days.
Consequently the distance of the compressor station to the center of the Earth would vary by a factor of over 7, and the Earth's gravity for that station at maximum distance would be a factor 50 less !
So if a tank with liquid gas could be delivered at the compressor station every 27 days at minimum distance from Earth, and the gas could be released into the pipeline at maximum distance, much less energy would be needed to get the gas to the Moon.
Question: Would it be possible for one compressor station at the end of the pipeline to deliver gas all the way to the Moon using the much less gravity, and can it be calculated how much pressure is needed because Earth's gravity varies wlth distance ?