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originally posted by: turbonium1
OVER TIME, we can learn, that's quite true.
Apollo is centuries ahead of what we were/are capable of learning, however.
The Saturn V is designed by 1962, and built as designed in 1962 a few years later.
They claimed Saturn V was designed to fly men to the moon, while they were still trying to blast a hole in the VA Belts!
Come on, think about it!!
originally posted by: turbonium1
OVER TIME, we can learn, that's quite true.
Apollo is centuries ahead of what we were/are capable of learning, however.
The Saturn V is designed by 1962, and built as designed in 1962 a few years later.
They claimed Saturn V was designed to fly men to the moon, while they were still trying to blast a hole in the VA Belts!
Come on, think about it!!
originally posted by: choos
have you noticed how you STILL fail to quantify this statement??
how much more hazardous??
originally posted by: choos
let me show you:
its safe to drive slowly.. its hazardous to drive faster..
while the statement is true, but what if driving faster is only 10km/hr?? 10 km/hr is faster than 5km/hr.
originally posted by: choos
so why dont you quantify your statement?? how much more hazardous does aluminium shielding make GCR's?
originally posted by: choos
ntrs.nasa.gov...
this is from a report that you have quoted from multiple times..
looking at the dose only, during a solar maximum, dosage goes from ~6.5cGy/yr with no shielding to a maximum of ~7.7cGy/yr or more simply, thats about 20% increase in hazard.. your deadly aluminium intensifies GCR's by about 20%..
still no where near being able to make 2 weeks in deep space impossible let alone 6 days..
originally posted by: choos
so whats their 150days limit in deep space from??
originally posted by: choos
is it no shield ie completely naked??
is it using shielding that exists today??
or is it from radiation shielding that has yet to exist??
originally posted by: choos
and they dont state no craft will be built in future with aluminium shielding.. that is YOUR opinion.. space crafts will still be built with aluminium..
originally posted by: choos
its common sense.. when they say space radiation currently limits missions in deep space to 150days, it certainly DOES NOT mean that we can launch naked human beings into deep space for exactly 150days, no more no less, and expect them to survive..
originally posted by: choos
they didnt need to protect against the deadlist area of the VAB..
they only needed to shield against the less energetic areas, which aluminium is capable of of stopping..
they went around and spent very minimal time in the deadliest areas of the VAB that they couldnt shield against..
originally posted by: turbonium1
From their own documents, they indicate that it is not yet known how much more hazardous it is to humans.
Didn't you read the documents? I shouldn't have to tell you about this, or repost their quotes over and over.
Your analogy doesn't work. Aluminum is supposed to shield radiation, not intensify it.
Let's rework your analogy...
Aluminum shielding was always considered to be safer than no radiation shielding, just like driving 5 km/hr is considered to be safer than 10 km/hr.
Then we found out aluminum shielding is worse than no radiation shielding, in the deep space environment, because it makes GCR radiation more hazardous than before.
So while 5 km/hr is considered safer than 10 km/hr, it might be considered safer to go 10 km/hr in a different 'environment' than we normally drive in (streets, etc). Driving over a thin sheet of ice across a lake, would probably be safer at 10 km/hr than 5 km/hr. Stopping to 0 km/hr would be ever more hazardous to you, as well.
In the paper you're citing below, they state...
Whereas aluminum was considered a useful shield material a few years ago, now it is considered as not only a poor shield material but may even be hazardous to the astronaut's health because dose equivalent may be a poor predictor of
astronaut risk.
This was written in Dec. 1997. At that point, aluminum was considered a poor shield material. They also indicated it may even be hazardous to a crew. As you see, THEY say it, and THEY do not quantify it.
In more recent documents, they confirm that aluminum IS more hazardous, while they don't yet quantify that statement.
So once again, I'm proving to you that this is NOT my statement, it is THEIR statement. And THEY don't quantify it.
Do you get it, finally?
Come on, now! I've clearly explained these figures to you, that they are NOT valid numbers, NOT genuine data! Why are you still trying to use them to defend your argument? Remember when I told you the last time? You came back and said 'are you saying that real data doesn't exist?', and tried showing me different documents. And as I told you, they are not relevant to the figures you're trying to push as valid, IN THE DOCUMENT.
Here's what you need to grasp, about the ESTIMATES you are still trying to push as genuine data ...
Do you see how they keep changing the REQUIRED shielding over time? The PRESENT ESTIMATE you are citing is with aluminum shielding, and they say over and over and over that aluminum is a POOR shield, and may be MORE hazardous than before. They now KNOW it is more hazardous, so do you think current estimates would be in your favor, or not?
Just as I thought, you have no clue about where the 150 day limit came from.
Worse, you try and hold it up as proof of your argument!
The article doesn't mention shielding at all, that's what I've been telling you.
Spacecraft built for manned deep space missions will not use aluminum shielding.
I'm sure I'll have to repeat this to you a few more times, because you obviously will keep on trying to twist my words, over and over again....
It's also common sense to not cite a figure when you can't support with a sliver of evidence, too.
originally posted by: turbonium1
You keep on trying to claim that Apollo didn't need to go through the most dangerous areas of the VAB.
You now realize this NASA engineer, in a NASA video, states we cannot yet "send people through this region of space"
If we cannot send people through "this region of space" today, then we know for sure that Apollo DID NOT, COULD NOT, have flown people through "this region of space", either.
There are no exceptions made for missions with "different targets" than Apollo (supposedly) had. There are no exceptions made for 'outer fringes', or 'less hazardous' areas of this region. He said we cannot yet send people through this region of space, period.
You can't wriggle out of it to save your precious, magical, Apollo fable.
originally posted by: choos
the region of space that we cannot send humans through is directly above the equator, there are areas that we can bypass safely enough but this isnt always a practical trajectory as has been said several times..
but if you want to extend that region to absolutely everywhere in the VAB then you better provide some proof how the ISS astronauts survive their passage through the VAB nearly every revolution..
Analysis of the Apollo 4 and 6 data indicated that the dose calcultions for manned lunar missiosn which pass through the more intense portion of the trapped radiation belt would be relialbe and that the expected doses are well below the planning operational dose limits set by NASA.
Mild symptoms may be observed with doses as low as 0.3 Gy or 30 rads.
So in 1962, they're trying to blow a hole through the radiation belts, brilliantly making it worse than before, yet somehow can build a spacecraft which will safely fly men to the moon, at the very same time!!
I love a good fantasy tale, but even The Hobbit looks real, compared to the Apollo fibbery
So in a very literal sense you cannot safely send astronauts through the region of space flown by Orion EFT-1 using older manned spacecraft capable of reaching that altitude, namely Apollo.
originally posted by: SayonaraJupiter
That goes the same for everyone in the thread. We are the .1% and I'm proud to be with you, too.
originally posted by: SayonaraJupiter
a reply to: ngchunter
So in a very literal sense you cannot safely send astronauts through the region of space flown by Orion EFT-1 using older manned spacecraft capable of reaching that altitude, namely Apollo.
However, Orion has not demonstrated that capability
Don't worry, there will plenty of time for you to spend in future years insisting that the operational manned version of the Orion capsule doesn't actually work. Meanwhile NASA is continuing to refine the Orion design based on the data from the EFT-1 flight, which I was invited by them to attend in person. I'm sure you'll have fun insulting Orion throughout its future from the comfort of your computer instead.
originally posted by: SayonaraJupiter
a reply to: ngchunter
Don't worry, there will plenty of time for you to spend in future years insisting that the operational manned version of the Orion capsule doesn't actually work. Meanwhile NASA is continuing to refine the Orion design based on the data from the EFT-1 flight, which I was invited by them to attend in person. I'm sure you'll have fun insulting Orion throughout its future from the comfort of your computer instead.
Orion gets funding now, based on what Obama wants. What if the next president doesn't think Orion is a priority??
originally posted by: SayonaraJupiter
edit to add: The Russian Glass Ceiling is at 475km. 50 years ago.
originally posted by: ngchunter
originally posted by: SayonaraJupiter
That goes the same for everyone in the thread. We are the .1% and I'm proud to be with you, too.
Nothing substantive to offer so you insult the majority of the posters here, most of whom actually understand Apollo better than you do.