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Originally posted by mikesingh
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?
Right! Elementary, Dr Watson!! But you're correct about the psi part. Frankly, with nitrogen, I really don't know what the expansion coefficient would be under zero pressure! What's it? We can then check if it would 'explode' the buggy's (errr...I mean LRV!! ) tires on the Moon or not!
Cheers!
JAXA announced a new finding of a gravity anomaly for both the near side and far side of the Moon by using 4-way Doppler observation data from the RSTAR (OKINA) with the main orbiter, the KAGUYA.
Until now, the gravity anomaly of the far side of the Moon has not been understood well. The gravity anomaly, which was obscure before, has been clearly revealed through observations by the Kaguya mission.
For instance, the gravity anomaly of a basin on the far side is found to be characterized by a negative anomaly in a ring like the Apollo basin. On the other hand, the gravity anomaly of the basin on the near side is uniformly positive over the region such as with the Mare Serenitatis.
Thus, the clear difference in gravity anomaly on the near side and the far side has been newly discovered and this fact brings a different story about the structure of the underground and the history of the evolution of the far side and near side of the Moon.
Originally posted by weedwhacker
reply to post by mikesingh
SO....the short visit of Apollo Lunar EVAs lasted, what? Less than 36 hours....total?
Originally posted by mikesingh
Thus, the clear difference in gravity anomaly on the near side and the far side has been newly discovered and this fact brings a different story about the structure of the underground and the history of the evolution of the far side and near side of the Moon.
Cheers!
www.jaxa.jp...
Originally posted by Phage
If you still are insisting that pneumatic tires would burst in a vacuum you're wrong. If all you're doing is arguing about the construction of the tires used that's another matter.
Originally posted by weedwhacker
Problem is....yes, I see the length of shadow.....but I also see NOTHING that looks anything like an Apollo EVA suit. What my eyes discern is a possible training exercise....right here on the good ole' Earth.
Originally posted by mikesingh
If you had read one of my posts which seems to have been lost in the labyrinths of this thread, I had clearly mentioned that they probably would OR would not.
For another, on the one hand you contend that they couldn't be anything but solid tires because of the low gravity and pressure conditions, and on the other say that pneumatic tires would NOT burst in a vacuum, so then what's the big deal if the buggies had pneumatic tires in the first place? There's a war going on on this aspect, for heaven's sake!
Originally posted by 4N6310
You know, I never thought about that before, but it does seem to make sense if you consider that the same side of the moon is always facing the earth.
NASA is drawing up plans to probe the secrets of moon dust using a small orbiter that will ride piggyback on another spacecraft's rocket.
The $80-million LADEE spacecraft is slated to launch alongside a lunar gravity-mapping probe in 2011 on a 100-day mission to study the moon's wisp-thin atmosphere and ever-present dust, the agency said Thursday. A clear understanding of the moon's atmosphere and its clingy dust will be vital for NASA as it moves forward with plans to return astronauts to the lunar surface aboard its Altair lander by 2020.
The LADEE orbiter is expected to ride in the back seat of an unmanned Delta 2 rocket behind NASA's Gravity Recovery and Interior Laboratory (GRAIL), a $375-million orbiter designed to parse out the mysteries of the moon's gravitational field. The two spacecraft will separate only after they are en route to the moon, with LADEE expected to take about five months to enter orbit and check its systems.
Originally posted by mystiq
But earth was turned into a wasteland with no rain forests or plant life, we would be without a breathable atmosphere as well.