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The unrecognized decision that saved Apollo 13
BBC ^ | 14 Apr, 2016 | William Park

Posted on 04/15/2016 5:23:58 PM PDT by MtnClimber

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To: Talisker
If Apollo 13 was a lie, and if the moon landings were a lie, and your frothing aside I'm not saying they were,

So you've changed your mind since last year saying straight out that the manned landings did not happen? Good for you little fellow! Keep up the good work - there may be hope for you yet. And you're welcome for the schooling you've received today. (minus points for crying like girl to the Mods, but baby steps, baby steps).

Talisker (Moon landing truther kook) on FR 6/17/2015:

Personally, I think we DID go to the moon, and got photos and instrument readings, etc. I just no longer think we sent PEOPLE to the moon - I think it was remote equipment. I think the Van Allen radiation belts simply were not crossable with the technology we had, or even still have, and I also think the radiation of open space and on the lunar surface were prohibitive as well.

121 posted on 04/17/2016 6:40:50 PM PDT by Dagnabitt
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To: Talisker

Those equations are for emission from any object in any environment including a vacuum, which you would know if you had any familiarity with basic engineering principles. It’s OK to believe that you’re smarter than all the engineers NASA worked with to design the Apollo program. Just don’t be shocked that the rest of us think your elevator doesn’t go up past the basement. The fact that you claim a vacuum prevents radiation from escaping a spacecraft, yet that same vacuum allows radiation to escape the sun and then be absorbed by that spacecraft shows that you refuse to let facts get in the way of a good story.

Although you actually have a point about aluminum not being a completely valid basis of comparison. The command module was coated in Kapton tape, so the equation I showed you overestimates the equilibrium temperature. Kapton tape has a higher emissivity than absorbance coefficient, and so is much better at emitting heat than absorbing it.

I would also thank you for playing, but I can tell this is much more than a game to such a towering intellect as yours...


122 posted on 04/17/2016 7:55:14 PM PDT by Go_Raiders (Freedom doesn't give you the right to take from others, no matter how innocent your program sounds.)
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To: Dagnabitt
So you've changed your mind since last year saying straight out that the manned landings did not happen? Good for you little fellow! Keep up the good work - there may be hope for you yet. And you're welcome for the schooling you've received today. (minus points for crying like girl to the Mods, but baby steps, baby steps).

I haven't changed my mind a bit. Sorry all your research shills had to dig it up for you for nothing. Got any more Alinsky tactics you want to try? And as for "schooling" me, LOL, you've forgotten your place, thug.

Also, I'm surprised your brought up the mods, since what I pointed out to them is you getting my posts pulled for pointing out your abuse. Of course that makes sense, the only way for you to stay alive in print is to have the responses to your idiocy deleted.

Anyway, I'm done with you. You're a total waste of time. You wanted to crap all over this thread and you did. That crap is your legacy, not mine. You're a disgrace to the dignity of the space program, and you suck at your shill work. Your owners are not pleased with your performance, but I know you already found that out by now. LOL.

123 posted on 04/18/2016 9:27:35 PM PDT by Talisker (One who commands, must obey.)
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To: Go_Raiders
The fact that you claim a vacuum prevents radiation from escaping a spacecraft, yet that same vacuum allows radiation to escape the sun and then be absorbed by that spacecraft shows that you refuse to let facts get in the way of a good story.

Well unfortunately, those aren't my claims - they're your story. But they have to be, in order for you to be able to indulge in insulting me, so I understand. After all, you're not about the science here. Like the rest of your little shill team, what you're about is the derision. Lack of respect, scorning, group consensus ridicule, all Alinsky protocols. Make the punishment massive, so any readers will think twice about questioning "accepted science" in the future.

And then, since this is Free Republic, go over to a global warming thread and ridicule those who are claiming settled science! Why not? After all, it's not about the integrity, but the paycheck.

124 posted on 04/18/2016 9:35:19 PM PDT by Talisker (One who commands, must obey.)
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To: eartrumpet
A great thermos bottle filled with scalding hot coffee will cool off in time. So did the capsule.

All of the heat the scalding coffee has is what it starts with - it can't do anything else BUT cool off. Human beings continually generate heat. If the heat generation is even a little bit greater than the cooling, the environment will just keep getting hotter.

So it depends, in the case of Apollo 13, on the passive cooling technology rates, and that's ALL I've asked about here. What is really fascinating about this thread is the massive amounts of continual personal abuse I've received for asking the question. Over the top by any measure, certainly not allowable on any other thread.

But question NASA, and suddenly the knives come out.

I say there's your answer about Apollo 13 right there. Maybe NASA should upgrade its shill quality instead of focusing on Muslim outreach so much. Or maybe these idiot shills ARE the Muslims outreach program. After all, they display all the maniacal ferocity and intent to destroy that is constantly on display by Islam. So is that NASA's new Islamic-style policy - believe or be destroyed?

125 posted on 04/18/2016 9:57:51 PM PDT by Talisker (One who commands, must obey.)
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To: Talisker

You can finger paint any word picture you like. It doesn’t change the fact that you have no knowledge or understanding of engineering.

You claim that atmospheric convection and conduction accelerate radiative heat flow. The only thing that can be proven about your position is that the words you use are in English, although any random arrangements of the same words you use would make more sense. That is not derision, it is a statement of fact.

I know you have an inherent incapacity to let any one else have the last word, so I will give you the best gift possible. Please reply to my post with any incoherent combination of words you like, and we’ll call it good. Have a nice day, buddy.


126 posted on 04/18/2016 9:57:53 PM PDT by Go_Raiders (Freedom doesn't give you the right to take from others, no matter how innocent your program sounds.)
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To: Go_Raiders
I know you have an inherent incapacity to let any one else have the last word, so I will give you the best gift possible. Please reply to my post with any incoherent combination of words you like, and we’ll call it good. Have a nice day, buddy.

Your fear of my replying to your insults is noted. Brace yourself, buddy. Now would be a good time to get into your safe space.

As for your saying that I claim that atmospheric convection and conduction accelerate radiative heat flow, no, atmospheric convection and conduction accelerate TOTAL heat flow. FYI, radiation is only one method of heat flow, the other main ones being convection and conduction. The thing about radiation is that it is far less efficient than the other two, again, generally speaking. And of course, only radiation exists in space, the others in an atmosphere.

Do try to keep up.

127 posted on 04/18/2016 10:12:16 PM PDT by Talisker (One who commands, must obey.)
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To: Talisker
You're a disgrace to the dignity of the space program,

It appears that Moon-Landing Truther Kook syndrome includes a profound lack of self-awareness.

But all seriousness aside, thanks for the laughs you weird little man. Your tales of secret underground vacuum chambers and blackout curtains on the command module had me in tears. I only wish I was really receiving payouts from the NASA Conspiracy Office like you said!

Never Change!

128 posted on 04/19/2016 1:44:02 AM PDT by Dagnabitt
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To: Talisker
Human beings continually generate heat. If the heat generation is even a little bit greater than the cooling, the environment will just keep getting hotter.

No, it won't. It will reach the temperature of the heat source, the humans, and get no hotter. How could it get hotter than their body temp?

129 posted on 04/19/2016 4:22:52 AM PDT by eartrumpet
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To: Talisker

Michael Rivero posting under and alias.


130 posted on 04/19/2016 5:46:09 AM PDT by Rebelbase
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To: Talisker

Why would external radiators work on the ISS, if the vacuum of space were such a great insulator? I’ll go with what Jim Lovell said in the ‘extras’ section of the Apollo 13 DVD, that everything froze up.


131 posted on 05/17/2016 12:13:23 AM PDT by SunkenCiv (I'll tell you what's wrong with society -- no one drinks from the skulls of their enemies anymore.)
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To: SunkenCiv

Thermal energy radiates in a vacuum.


132 posted on 05/17/2016 12:33:04 AM PDT by Talisker (One who commands, must obey.)
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To: Talisker

Yes, and that’s why Apollo 13 froze up.


133 posted on 05/17/2016 1:17:23 AM PDT by SunkenCiv (I'll tell you what's wrong with society -- no one drinks from the skulls of their enemies anymore.)
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To: MtnClimber

bump


134 posted on 05/17/2016 3:16:46 AM PDT by dennisw (The strong take from the weak, but the smart take from the strong)
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To: SunkenCiv

Yes that’s the story. My point is simply that Apollo 13 was filled with three heat generating machines called human bodies, while the spacecraft itself had minimal passive radiators. So when the power went out, it seems to me the heat from the bodies would build up faster than the passive radiation capabilities of the spacecraft could get rid of it. Obviously, in the long run, all heat would dissipate. But three days didn’t seem long enough. What I didn’t realize was how much of a religion the standard storyline is for so many people. In the future, I’ll just stay quiet and salute when I see the NASA logo - it’s certainly not worth the aggravation to do otherwise, no matter what the truth is. Because as everyone but me knows, engineers don’t speculate - they vote on consensus then shoot anyone who questions it. And above all, NASA never, ever, ever, EVER lies.


135 posted on 05/17/2016 12:24:24 PM PDT by Talisker (One who commands, must obey.)
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To: Talisker
The spacecraft had a cooling system that needed power, and was shut down.

That cooling system was designed to cool the electronics in normal operation, which generate heat. With those shut down, the cooling system is no longer necessary.

Heat energy, left alone, will always dissipate to its lowest state. Keeping a spacecraft at a certain temperature range is a balance between heat absorption, generation, and dissipation. Before the accident, the generated heat (electronics and human) and the absorbed heat on the sun side, were balanced by the cooling system and radiated heat dissipated on the cold space side. After the accident, the spacecraft generated heat was greatly reduced, the cooling system was off, and the new equilibrium temperature was uncomfortably colder.

If the scenario had been just cooling system failure with everything else still up and generating heat, your speculation about temperature increasing would likely be correct.

136 posted on 05/17/2016 12:42:02 PM PDT by Magnum44 (I dissent)
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To: Talisker

Since Jim Lovell was there, I’ll take his word for it.


137 posted on 05/17/2016 1:26:15 PM PDT by SunkenCiv (I'll tell you what's wrong with society -- no one drinks from the skulls of their enemies anymore.)
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To: Talisker
Drama Queen Award!

138 posted on 05/17/2016 1:31:07 PM PDT by SunkenCiv (I'll tell you what's wrong with society -- no one drinks from the skulls of their enemies anymore.)
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To: SunkenCiv
See? You made my point. Doubters shall be mocked. Thermodynamics is a matter of consensus. Data is not needed. NASA is God. And if that's not enough - everyone saw the movie!


139 posted on 05/17/2016 2:05:58 PM PDT by Talisker (One who commands, must obey.)
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