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originally posted by: turbonium1
You made up a fantasy-story, as usual...
Nobody mentions Apollo data, let alone make up lame excuses for not using it...
You are thinking up any excuse, of your own invention, like you have done here...
The Apollo-ites want an excuse for these studies not including Apollo's data, when it should have been the very BASE point of the research papers.. not treated as so much trash, like it is...
These papers are saying over and over that aluminum cannot shield humans against radiation within the deep space environment. And, we must try and find something which DOES shield humans in deep space...
THAT is what these papers are really about, quite clearly.
Despite the fact they state aluminum won't shield humans against radiation in deep space, and no manned spacecraft will be built of aluminum for deep space missions, at all, in future - it must exclude short-term missions, like Apollo's, even though nothing is ever said, or even implied, to that effect.
You think because they refer to long-term missions, they exclude short-term missions, without ever saying it, since you 'know' it was meant that way, of course!
You see nothing of the reality.
MIT’s Ali Rahimi and several colleagues found that aluminum magnifies, rather than blocks
MIT’s Ali Rahimi (at right) and several colleagues found that the foil magnifies, rather than blocks, radio waves, specifically at government-controlled frequencies — oops.
originally posted by: Misinformation
Massachusetts Institute of Technology (MIT) confirms the added hazard of aluminium shielding
MIT’s Ali Rahimi and several colleagues found that aluminum magnifies, rather than blocks
originally posted by: TerryDon79
a reply to: turbonium1
Do you actually read what you post or the articles you link to?
I mean deep space and LEO are 2 completely different things for a start.
Deep space and where the Apollo missions went are different.
You're pulling arguments out of thin air. You take an article saying that aluminium isn't good in deep space and equate it to the moon landings? Bravo. Keep up the great work
/sarcasm
originally posted by: turbonium1
I agree with you, the Apollo missions were different, and did not go into deep space!
Deep space is anywhere beyond LEO, and the moon is beyond LEO, as we know...
So Apollo spacecraft would not have worked in deep space missions, like I said....
originally posted by: Soylent Green Is People
a reply to: TerryDon79
Plus, aluminum in spacecraft is not used for shielding -- it is used as a lightweight and relatively durable outer skin.
For Apollo, no material was added for the sole purpose of specifically providing radiation shielding, but the fibrous insulation provided between the inner and outer hulls provided the secondary benefit of being adequate shielding for the short duration of the Apollo missions. That same insulation would not be good enough for longer-duration missions (month or months long flights outside the Earth's magnetic fields).
For the space station (ISS), aluminum is again used on the skin because it is lightweight and tough. Just like Apollo, aluminum was NOT added specifically for radiation protection. The space station instead uses polyethylene plastic panels and sheets, which provide a high level of protection per unit thickness.
Also, the type of radiation ISS shields against is different than what Apollo encountered. Apollo encountered higher levels of cosmic radiation that the ISS does not encounter, because the ISS is within Earth's magnetic shield, which provides some protection. Then again, Apollo astronauts only spent a week or two in space, while astronauts on the ISS spend many months at a time, so those polyethylene panels on the ISS needs to be an effective radiation shield.
originally posted by: choos
originally posted by: turbonium1
I agree with you, the Apollo missions were different, and did not go into deep space!
Deep space is anywhere beyond LEO, and the moon is beyond LEO, as we know...
So Apollo spacecraft would not have worked in deep space missions, like I said....
and still continue to fail to understand that 2 weeks exposed to GCR's has minimal effects.. you dont need a shield to specifically protect against that for that short amount of time..
originally posted by: OneBigMonkeyToo
a reply to: turbonium1
Find any Apollo documentation that specifically states that aluminium was used purely as a radiation shield.
Find any Apollo documentation that specifically states that only aluminium was used as a radiation shield.
Find any documentation anywhere that shows Apollo astronauts received a fatal dose of radiation.
Oh, and deep space is anywhere beyond the moon, not LEO.
originally posted by: choos
so you think that a long term mission will contain two passes through the VAB every two weeks or so??
so if they were planning a trip to mars, you think that using a two week mission to the moon (which includes traversing the VAB twice) as the basis to extrapolate the expected radiation that would be received for a trip to mars??
basically what you are telling me is that assuming a trip to mars would take 6 months, the missions planners plan to put them on a course to mars for one week then have them return to LEO, then send them on their way to mars again for one week and have them return, so on and so on until they reach mars?????
originally posted by: choos
and still continue to fail to understand that 2 weeks exposed to GCR's has minimal effects.. you dont need a shield to specifically protect against that for that short amount of time..
originally posted by: OneBigMonkeyToo
a reply to: turbonium1
Let's see your official NASA definition of deep space then in terms of the reports you keep quoting. The definitions I've seen refer to places beyond the Earth-Moon system. If you know better then show us your source.
Apollo has plenty of documentation about the radiation levels it experienced and what protection its construction afforded, you've been given it many times. Google it if you've forgotten. You missed my point and not provided what I asked for, so why should I given you the same information again.
Apollo was constructed of the lightest material available that was structurally capable of surviving a lunar mission. That material also afforded some protection against radiation. It was not specifically incorporated for radiation protection.
If you're claiming no data exist on Apollo's ability to withstand radiation or the radiation levels the missions experienced, then how are you able to prove that the crew experienced dangerous levels of it?