Quote:
Originally Posted by Fazor
Well, it's what we talked about earlier. He's opperating based on what happens to particulate that is in a vaccuume-sealed packaging. Take dry concrete mix, put it in a plastic bag, and vaccume the air out, and it will condense and not leave footprints. But that is due to the packaging, not due to the lack of air.
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My understanding of what happens in vacuum sealed packages is that the surrounding atmosphere presses inward on the particulates. Since there is no air between the particles, they get pressed very close together, almost like they are a solid rock.
But on moon this wouldn't apply at all. No barometric pressure there.
I guess I still don't get green's point. He's just misunderstanding the physics. If I kicked my boot on the lunar surface, dust would fly off in parabolic trajectories and gently settle out down-range.