4
   

Did Man Set Foot On The Moon In The 60s, 70,s Or Ever?

 
 
BillRM
 
  0  
Mon 5 Jul, 2010 12:22 pm
@mikemike,
Quote:
Ive seen flags waving about and there is no air there. how is this?


See the Myths Busters show where they handle flags in a large vacuum chamber and see it wave.

You can find this on the Myths Busters Website and I think on YouTube.

In fact a flag will wave more in a vacuum then in air when it is being planted.

http://www.youtube.com/watch?v=yhab86KoVjU
0 Replies
 
OCCOM BILL
 
  2  
Tue 6 Jul, 2010 11:21 am
@BillRM,
BillRM wrote:

Quote:
Stop trying to sound authoritative about things you know nothing about
.

LOL this is from a man who does not understand that any rocket taking off in a vacuum would be design to burn all it fuel as near to the surface as possible so as not to be carrying part of it fuel up the gravity well.

Maximum possible thrust on takeoff, minimum thrust on landing at least near the surface.
Rolling Eyes Laugh all you want, moron. You are still demonstrating your ignorance. I'll explain this for you one time...

32,399 pounds of Luner Landing Module allegedly landed on the moon with a rocket engine capable of 6,800 pounds of force. Now if you don't want your Lander to crash into the surface, the basic formula is relatively simple: Divide the weight of the craft by 6 and you have a rough idea of what it would take to keep from crashing into the surface... about 5,000 pounds of force.

Now the Ascent Module, that allegedly left the moon, only weighed in at 10,024... roughly 1/3 the weight of the Lander that allegedly landed. Its Rocket engine was only capable of producing 3,500 pounds of force, and it was elevated off the moon’s surface to boot. Now unless you enjoy making a fool of yourself; stop trying to sound authoritative on subjects you know nothing about.
Thomas
 
  1  
Tue 6 Jul, 2010 11:26 am
@OCCOM BILL,
Although I disagree with your general proposition that Apollo 11 didn't land on the moon, I do agree with you on this particular point. The thrust of the Lunar Landing Module's descent state was lower than that of its ascent stage, because the descent stage worked against a much greater weight.
OCCOM BILL
 
  1  
Tue 6 Jul, 2010 11:27 am
@Thomas,
Thomas wrote:

Occom Bill wrote:
This explanation would be acceptable, if it weren't for Buzz Aldren telling his tale about the first flag being blown over by their departure.

Unless the flag was firmly anchored in the ground, you could have nudged it over with a negligible amount of force.
While this is certaily true, it is not at all as described:

wiki wrote:
Film taken from the LM Ascent Stage upon liftoff from the moon reveals the American flag, planted some 25 feet (8 m) from the descent stage, whipping violently in the exhaust of the ascent stage engine. Buzz Aldrin witnessed it topple: "The ascent stage of the LM separated ...I was concentrating on the computers, and Neil was studying the attitude indicator, but I looked up long enough to see the flag fall over."[40] Subsequent Apollo missions usually planted the American flags at least 100 feet (30 m) from the LM to prevent its being blown over by the ascent engine exhaust.
(The above matches my recollection from doing NASA's virtual tour online, btw.) So, if the flag was 25 feet away, "whipping violently" before toppling, surely there was enough force to blow the moon dust around just inches below the Lander's main engine. 25 feet that force traveled without the benefit of air... and you don't think it should have blown some dust around? It should have blown out in a ring around the craft... but NASA's alleged footage of the landing shows no such thing.
Thomas
 
  2  
Tue 6 Jul, 2010 11:35 am
@OCCOM BILL,
Occom Bill wrote:
25 feet that force traveled without the benefit of air... and you don't think it should have blown some dust around?

It should have blown a little dust around. Indeed, farmerman said there are photos showing that it did. But it would have blown around a lot less dust, across a much lesser distance than you would expect from your experience on Earth. And that's enough to explain why your picture of the retro-reflector looks the way it does.

As to the flag "shaking violently": again, what did you expect? There is some exhaust reaching the flag, no air resistence to attenuate its shaking motion, and a 3-4 foot leverage to push it over. (Leverage the exhaust didn't have when working against dust on the ground.)
OCCOM BILL
 
  1  
Tue 6 Jul, 2010 11:52 am
@Thomas,
Thomas wrote:
Although I disagree with your general proposition that Apollo 11 didn't land on the moon, I do agree with you on this particular point. The thrust of the Lunar Landing Module's descent state was lower than that of its ascent stage, because the descent stage worked against a much greater weight.
I assumed as much, but appreciate your saying so anyway. I suspect your silence was being taken by Bill as agreement with Bill's nonsense.

Oh, and for the record, I don't necessarily doubt that Apollo made the moon landing; I seriously doubt that Aldrich and Armstrong walked on the moon... as I do not find the photo and video evidence of same to be credible.
OCCOM BILL
 
  1  
Tue 6 Jul, 2010 12:16 pm
@Thomas,
Thomas wrote:

Occom Bill wrote:
25 feet that force traveled without the benefit of air... and you don't think it should have blown some dust around?

It should have blown a little dust around. Indeed, farmerman said there are photos showing that it did. But it would have blown around a lot less dust, across a much lesser distance than you would expect from your experience on Earth. And that's enough to explain why your picture of the retro-reflector looks the way it does.

As to the flag "shaking violently": again, what did you expect? There is some exhaust reaching the flag, no air resistence to attenuate its shaking motion, and a 3-4 foot leverage to push it over. (Leverage the exhaust didn't have when working against dust on the ground.)
I understand the lack of air thing, Thomas, but that isn't sufficient explanation. If the rocket's thrust is capable of hovering thousands of pounds of spacecraft in one direction; it is equally capable of blasting a significant fraction of that pressure in the other. The dust itself, isn't going to fly exactly straight up and down again, and the inevitable collisions would result in spreading the dust away from the center, with or without the help of air. Judging by the depth of the famous footprint; there should have been a noticeable indentation where the rocket engine blew the dust away and a rough circle around the craft. There isn’t.
0 Replies
 
BillRM
 
  1  
Tue 6 Jul, 2010 01:17 pm
@OCCOM BILL,
Quote:
32,399 pounds of Luner Landing Module allegedly landed on the moon with a rocket engine capable of 6,800 pounds of force. Now if you don't want your Lander to crash into the surface, the basic formula is relatively simple: Divide the weight of the craft by 6 and you have a rough idea of what it would take to keep from crashing into the surface... about 5,000 pounds of force.


Sorry silly rabbit 99 percent of the fuel and the mass of that fuel in it descent stage would be gone by the time it go into the near lunar touch done mode.

That your problem you get information and you do not understand that information.
Intrepid
 
  2  
Tue 6 Jul, 2010 01:20 pm
@BillRM,
BillRM wrote:

Quote:
32,399 pounds of Luner Landing Module allegedly landed on the moon with a rocket engine capable of 6,800 pounds of force. Now if you don't want your Lander to crash into the surface, the basic formula is relatively simple: Divide the weight of the craft by 6 and you have a rough idea of what it would take to keep from crashing into the surface... about 5,000 pounds of force.


Sorry silly rabbit 99 percent of the fuel and the mass of that fuel in it descent stage would be gone by the time it go into the near lunar touch done mode.

That your problem you get information and you do not understand that information.
Are you, therefore, saying that they had 1% of the total fuel for liftoff? If not, what are you saying?
BillRM
 
  0  
Tue 6 Jul, 2010 01:21 pm
@Thomas,
Quote:
Although I disagree with your general proposition that Apollo 11 didn't land on the moon, I do agree with you on this particular point. The thrust of the Lunar Landing Module's descent state was lower than that of its ascent stage, because the descent stage worked against a much greater weight.


And like him you would be wrong the mass is greater but not anywhere near as great as he think it is as most of the fuel in the descent stage is gone by the time of landing and you are doing max burn on takeoff and minium on landing.
0 Replies
 
BillRM
 
  1  
Tue 6 Jul, 2010 01:23 pm
@OCCOM BILL,
Quote:
I assumed as much, but appreciate your saying so anyway. I suspect your silence was being taken by Bill as agreement with Bill's nonsense.


Sorry you both are still wrong as the mo0n orbit mass of the lander is not the same as the landing mass of the lander.
0 Replies
 
DrewDad
 
  1  
Tue 6 Jul, 2010 01:27 pm
@BillRM,
A rocket being used in vacuum is very different from a rocket being used in an atmosphere. A rocket in an atmosphere creates a high-pressure area and a shockwave. A rocket in a vacuum is just blast of hot gas; it will only affect the area immediately below the nozzle.

Next, the layer of dust on the moon is very thin. The lunar regolith is vacuum-welded dust. So blowing the actual free dust off of the regolith will just reveal a surface that looks like dust.

Finally, there's no atmosphere to hold any blown dust; the dust settles out immediately... onto another layer of dust. It just makes the layer of dust a little thicker....

The only way you'd see a pattern of blown dust is if there were rocks or something to block the dust plume in places.
0 Replies
 
BillRM
 
  1  
Tue 6 Jul, 2010 01:30 pm
@Intrepid,
Quote:
Are you, therefore, saying that they had 1% of the total fuel for liftoff? If not, what are you saying?


The lander on takeoff have 100 percent of the fuel contain in it takeoff stage but does leave the one percent or less of the fuel in it descent stage along with the rest of landing stage behind on the moon.

The LM is a wonderfully design machine indeed.

I been looking for solid figures on landing mass and have not gotten them however by my rough calculation with 99 percent of the fuel gone in the decent stage near landing the thrust needed for a soft landing would be in fact a few hundred pounds at least less then the takeoff thrust used.
DrewDad
 
  2  
Tue 6 Jul, 2010 01:36 pm
@BillRM,
http://skepticwiki.org/index.php/Moon_Hoax:Purported_Mistakes#No_Blast_Crater

Quote:
No Blast Crater
Apollo 11 Lunar Module with no blast crater underneath
Apollo 11 Lunar Module with no blast crater underneath

One of the giveaways, according to the hoax theorists, is that there is no blast crater on the moon underneath the Lunar Module. With 10,000 pounds of thrust at its disposal, the Lunar Module should have blasted a large hole in the surface of the moon. As it is, it's not even scorched.


Discussion

If you think about it, you realize that there's no way they would have been using all 10,000 pounds of thrust when they landed. Since the same engine was used to take off again, the 10,000 pounds of thrust would have caused the Lunar Module to literally rocket off into space! Since the weight of the module, the astronauts, and the equipment in the one-sixth lunar gravity totalled about 3,000 pounds, then running the engines at 3,000 pounds would have caused them to hover in place. So they throttled down to slightly less than that in order to land softly.

The circular engine nozzle had a diameter of 54 inches, and so, according to the equation A = πr², its area would have been about 2,290 square inches. That means that, at 3,000 pounds of thrust, the module's engine output was a pressure of only 1.3 psi. For comparison: an astronaut who weighs 250 pounds on Earth, plus a 100-pound spacesuit, will weigh 60 pounds on the moon. If the astronaut's foot is 5 inches by 12 inches, and therefore has an area of 60 square inches, this means that each step taken by the astronaut has a pressure of 1 psi. If the astronaut is carrying an 18-pound moon rock, that will bring his pressure up to 1.3 psi. And in such a case, he certainly wouldn't be leaving a blast crater with every step!

On top of that, the Lander came in at an angle so there was no point at which it hovered over the landing site.

There are many examples of jet and rocket engines on Earth which do not leave craters despite much higher thrust than the LM descent engine used. For example the DC-X which tested vertical takeoff and landings during short flights at White Sands. One flight made an emergency landing off the paved area out in the desert and left an area disturbed so "heavily" that the site was difficult to find after the rocket had been moved from the landing site. The DC-X used an engine with a thrust of some 60,000 pounds - 20 times the thrust of the LM descent engine at landing. The expectation of a blast crater under the LM at landing is in fact based on errant physics, even for larger thrust engines. However, to say that the soil under the LM was undisturbed is defintitely not true. There are many photographs showing the surface under the LM and it can be seen to have been scoured by the rocket engine in the seconds before engine shutdown as the LM approached the surface and has a radially disturbed pattern. Films of the landings clearly show the radially blown dust flying off on ballistic trajectories away from the LM as they made their final approach to the surface.
Setanta
 
  1  
Tue 6 Jul, 2010 01:43 pm
A breath-taking amount of nonsense in this thread.
Intrepid
 
  3  
Tue 6 Jul, 2010 01:49 pm
@Setanta,
Setanta wrote:

A breath-taking amount of nonsense in this thread.


You should feel right at home, boss

Smile
BillRM
 
  1  
Tue 6 Jul, 2010 01:59 pm
@DrewDad,
Wrong wrong wrong the descent engine along with it with remaining fuel supply remain on the moon and the ascent engine is used to reach moon orbit. In any case the same engine is not indeed used for both landing and takeoff.

The ascent engine max thrust is smaller then the max thrust of the landing engine but you are burning it at max on takeoff and you are throtting back the more powerful landing engine greatly at landing.
0 Replies
 
BillRM
 
  1  
Tue 6 Jul, 2010 02:47 pm
What I love is that the crazies had pointed to one detail after another trying to find some small detail that does not match a moon landing and time after time the detail that they are commenting on is due to them not understanding the conditions on the moon and space.

The flag waving, the lack of a deep landing crater.lack of stars in picture, VA belt and on and on we go.

All one after another had been shown not to indicate any faking of any kind.

And yet they still refused to go away and take up some other crazy theory.
Setanta
 
  1  
Tue 6 Jul, 2010 03:26 pm
@Intrepid,
In your front room? I don't think so . . .
Thomas
 
  2  
Tue 6 Jul, 2010 04:19 pm
@Setanta,
Setanta wrote:
A breath-taking amount of nonsense in this thread.

As Albert Einstein aptly observed: "Two things are ininite, the universe and human stupidity, and I'm not sure about the former".
0 Replies
 
 

Related Topics

New Propulsion, the "EM Drive" - Question by TomTomBinks
The Science Thread - Discussion by Wilso
Why do people deny evolution? - Question by JimmyJ
Are we alone in the universe? - Discussion by Jpsy
Fake Science Journals - Discussion by rosborne979
Controvertial "Proof" of Multiverse! - Discussion by littlek
 
Copyright © 2025 MadLab, LLC :: Terms of Service :: Privacy Policy :: Page generated in 0.07 seconds on 03/06/2025 at 01:06:58