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December 7, 2005: Every lunar morning, when the sun first peeks over the dusty soil of the moon after two weeks of frigid lunar night, a strange storm stirs the surface.
The next time you see the moon, trace your finger along the terminator, the dividing line between lunar night and day. That's where the storm is. It's a long and skinny dust storm, stretching all the way from the north pole to the south pole, swirling across the surface, following the terminator as sunrise ceaselessly sweeps around the moon.
Never heard of it? Few have. But scientists are increasingly confident that the storm is real.
The SMART-1 impact took place on the near side of the Moon, in a dark area just near the terminator (the line separating the day side from the night side), at a grazing angle of about one degree and a speed of about 2 kilometres per second.
Originally posted by mikesingh
Wow, Zorgon! your posts were pretty eye opening! But try selling this to the die hards!
Originally posted by Grayarea
At that angle, with a dense atmosphere, would it not just skip off and head into space ?
Originally posted by zorgon
Originally posted by Grayarea
At that angle, with a dense atmosphere, would it not just skip off and head into space ?
You are making a mistake here... not even John has ever said DENSE atmosphere... we are talking a very thin atmosphere with no water vapour and breathable at ground level for a very short period... no higher than a few thousand feet and denser in the craters on farside
Just to be clear...
Not fair to debate when you don't know what he says
Originally posted by Retseh
I checked just one "fact" at random from this entire ramble.
The author states that the Moon Buggy had nitrogen inflated tires which would have exploded in a vacuum.
One small problem - the tires are solid:
=====================================
From wiki
The wheels consisted of a spun aluminum hub and a 32 inch diameter, 9 inch wide tire made of zinc coated woven 0.033 inch diameter steel strands attached to the rim and discs of formed aluminum. Titanium chevrons covered 50 percent of the contact area to provide traction. Inside the tire was a 25.5 inch diameter bump stop frame to protect the hub.
Originally posted by weedwhacker
Anyway, it seems apparent to me that those wheels collapsed, or better said, could be collapsed flat to facilitate the storage. Ain't gonna happen with four 32" diameter nitrogen-inflated rubber tyres.
Besides, a rubber tyre is far, far more heavy than a wire mesh.
As to the testing? I would venture one guess....the actual design of the wheels was still to be determined. Lilkely you might be focusing on ONE aspect of early testing, to demonstrate viability of, say, the electric motors that drive the wheels, the batteries..
The Moon Buggy had its tires inflated with nitrogen.
By The Tire Retread Information Bureau
Publication: Construction Bulletin
Date: Friday, December 16 2005
Originally posted by drevill
What about solar radiation, solar winds etc? would these have an effect on the landscape?
david
Originally posted by weedwhacker
Now, just thinking off the top of my head, a smaller diameter "inner tube", for want of a better term, could have been INSIDE the wire mesh, as a support. It would be light, and flexible when deflated. AND it would not have to be inflated to any great PSI level....heck, the humans in their EVA suits operate at just over 3 PSI. (Remember, 100% O2....well, some water vapor and any CO2 that isn't 'scrubbed' out yet)
What say you?