Comments by "MRA" (@yassassin6425) on "Voice of America"
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Sigh.
"OK lets start the journey from earth to moon........started from a gigantic rocket, then many parts of the rocket separated through out the journey and at the end become a small lunar module that landed on the moon."
The Saturn V was a three stage heavy lift rocket capable of placing 130 tons into earth orbit. The first stage (SI-C) was powered by a cluster of five F1 engines collectively producing 7.5 million lbs of thrust at lift off. These burned for 2 minutes and 41 seconds, lifting the rocket to an altitude of 42 miles and a speed of 6,164 miles per hour. The second stage (S-II) contained five J-2 engines. After the first stage was discarded, these burned for approximately 6 minutes at 1.2 million lbs of thrust, taking the vehicle and payload to 115 miles altitude and 15,500 mph. The Third stage (SIV-B) then placed Apollo in a circular parking orbit 1,640 miles downrange at an altitude of 118.8 miles (191.2 km) with an orbital velocity of 17,432 mph. Trans lunar injection was performed by the restartable J-2 engine in the S-IVB third stage of the Saturn V rocket. Apollo 11′s S-IVB burned for 5 minutes, 41.01 seconds achieving a velocity of 24,994.656 mph to send it to the moon - it was then a coast. The third stage was abandoned once the lunar module had been extracted by the CSM. It was this stack that journeyed to the moon. Since the Earth's gravity continually exerts a force on the vehicle, Apollo was steadily losing speed until it fell into the lunar sphere of gravitational influence at which point it began to accelerate again. So they coasted away from earth, they slowed gradually to just under 3,292mph before the gravitational influence of the moon allowed them to pick up speed again. Lunar orbit insertion was then achieved through a burn of the SPS engine which lasted 6 minutes and placed the craft in an initial elliptical lunar orbit and a second burn lasting just 17 seconds and eased Apollo 11 into a circular orbit of 69 miles at 3,600mph.
"Ironically that lunar module though small, was able to carry a moon rover the size of a normal car (how they fitted the moon rover in the lunar module, nobody knows)."
Yes they do - this is all accessible knowledge. The lunar rovers were taken as part of the later J Class missions - Apollo 15, 16 and 17. These were folded and stowed in quadrant 1 of the equipment bay. You can readily find the full schematics detailing this in addition to the photos and footage of their stowage and deployment on Earth and the surface of the moon. Even if you claim that the Apollo Programme is faked, your statement is irrespective of this demonstrably false. Why do you people do this to yourselves?
"Now the return journey.......this supposed to be complicated. No more big rocket. The lunar module can surpassed the moon gravity (although moon gravity is 1/6 of earth)......but you still need a tremendous force to do that. Lunar module cannot afford to do that."
The force you exert on a surface due to gravity pulling you down is measured in Newtons (N) - this depends on the strength of gravity at a given location - in this case 0.17g. The ascent rocket expelled exhaust gases at Ve = 3.0 x 103 m/s. Its initial mass, including fuel, was 4800 kg. With no atmosphere, they could accelerate constantly, get up to speed very quickly and could reach orbit at very low altitude. That's a lot less fuel required. In 100 sec, the ascent stage was travelling over 600 mph. In under seven minutes, they had reached orbital velocity. The LM ascent stage weighed just about 1700 lb on the moon and had a 3500 lbf engine, so it had easily enough thrust. Ignition was hypergolic and the lunar lander's ascent engine used Aerozine 50, a half-and-half mixture of hydrazine and unsymmetric dimethylhydrazine (UDMH) developed for the Titan 2 and witnessed during the Gemini programme.
The GNC (Guidance Navigation and Control) systems required very good accelerometers and gyroscopes, some of the very best that could be made. Fortunately, there’d been a lot of research and development on these devices for ballistic missile applications. On-board radar units provided very accurate measurements of the relative positions and velocities LM (Lunar Module) and CSM (Command and Service Module stack). All of these devices were state of the art for the day, and very expensive, but that wasn’t a big problem for the Apollo program.Both the Lunar Module’s AGC and AGS were connected to the gyroscope for inertial navigation and to the rendezvous and docking radar and were part of the Primary Guidance and Navigation System (PGNS). After the LM returned from the surface, it entered a highly elliptical orbit at slightly less than 10 nautical miles and just over 5,500 FPS. This orbit would have carried it out to 48 nautical miles, but was adjusted by RCS thrust a few minutes later to roughly 62 x 44 nm at about 5,400 FPS. The LM then gained on the CSM, not just because it was going a little faster, but because it was climbing from a lower orbit, and lower orbits have shorter periods.
A little over three hours after liftoff, the LM’s orbit intersected the CSM’s at about 60 nm, and RCS thrust brought it into a nearly identical orbit of 63 x 56 nm, closing on the CSM by about 10 fps. Finally, a series of short braking burns brought the two ships into hard dock. The ascent stage of the LEM, having lifted off and docked with the CM, was subsequently jettisoned. The SPS performed the TEI burn which lasted approximately 150 seconds, providing a posigrade velocity increase of 1,000 m/s (3,300 ft/s) sufficient to overcome the gravitational influence of the moon and send Apollo on its three day fall back to earth. This was again a coast and Apollo progressively increased velocity due to the influence of the Earth's gravity.
"NASA wants us to believe the lunar module was using RE/solar energy in 1969"
What on Earth are you talking about now? The lunar module didn't use solar energy, it was powered by storage batteries whilst the CSM relied on fuel cells to generate electricity. 1969? - the first solar device to produce electricity from sunlight was installed on a rooftop in New York in 1883 by American inventor Charles Fritts.
"It is just a BS story created by the American."
You'll find in life that before you write something off as a "BS story", it's advisable to familiarise yourself with at the very least, some basic knowledge of the topic concerned.
Or, you could make a complete tit of yourself through arguments from ignorance and incredulity and a deferral to junk online conspiracy theory about a subject that you clearly have no knowledge of whatsoever.
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@BadAtTeaDude
"Wasn't too expensive or dangerous with never before created or used tech."
Are you pissed? The Apollo project was obscenely expensive which is why it was prematurely canceeled.
"Now it's too dangerous and costly and nobody else has come close to the fraud landings nasa did 53 years ago with technology that "exists"."
It's always been expensive and dangerous - what the hell are you talking about? Bye the way, Project Artemis says hi.
"That time they did something with technology then couldn't repeat it."
They repeated it five times. It would have been nine more times had it not been for the aborted landing of Apollo 13 and the cancellation of Apollo 18, 19 and 20.
"Like the model T."
What?
"Or crossing the Atlantic in a wooden ship in a few months..."
Are you ok? Seriously?
"How about those Wright brothers? Or pennacylin.. Heart surgery."
What about it?
Don Pettit in 2014 was discussing the cancellation of the Apollo Programme. And he didn't say "lost", that is false, he used an equally unfortunate choice of wording in saying 'destroyed' which hoax nuts have obsessively fixated upon since. You don't, 'lose' technology in the sense that it is forgotten, mislaid or mysteriously disappears. All the technology remained but rapidly became obsolete. You lose the capability and with the premature cancellation of the programme the production plants, the tooling, the specific expertise to mount such a huge project was all abandoned or left to lie fallow. Most significantly, Pettit was referring to the heavy lift capability which was also forsaken in favour of the Space Shuttle Programme and the construction of the ISS. It is a given in engineering that it's far faster, easier, better, and cheaper to simply take the lessons learned by older programmes rather than trying recreate old equipment. There is no longer the capability to fly passengers at supersonic speeds. When civil aviation eventually returns to supersonic flight (it's been nearly half a century since the demise of Concorde), it isn't about to roll a 1960s design, featuring 1960s hardware out of the hangar. Rebuilding such a complex project as Apollo on a similarly massive scale and utilising contemporary technology on a fraction of the budget of the Apollo Programme has been a long and protracted, painstaking process. Project Artemis was only approved in 2018.
Why is it that this has to be explained to you freaks over and over and over again?
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Why should he? Particularly since he was an atheist.
Sigh, this again? How many times? Why should anyone after years of harassment be forced to swear on a magic book brandished in front of them by that deranged stalker and conspiracy nutjob Bart Sibrel?
Imagine that you did something truly revolutionary, at unimaginable risk to yourself. You did it on national TV, with the whole world watching. Hundreds of thousands of people can personally attest to what you did…Then some shameless grifter with a camera crew comes up to you and demands that you go through some pseudo-formal rigmarole to “prove” that you actually did it. Now, not only is this charlatan insinuating that you faked your great accomplishment, based on half-baked theories and zero hard evidence, but he’s also arrogantly proclaiming himself to be the supreme arbiter of truth (i.e., “If you don’t pass my test, then that proves you faked it”). When Neil Armstrong was approached he retorted, “Mr. Sibrel, knowing you, that’s probably a fake Bible.” And to reiterate, why should he have sworn on it? he wasn’t Christian. His NASA paperwork marks his religious preference as “none.”
However, Jim Lovell, Al Bean and Eugene Cernan all did. You therefore have no choice but to accept that.
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@YAHsdaughter7
"oh they say they went to the moon but they just happen to destroy the ability to go to the moon"
One astronaut, Don Pettit, speaking in 2017 used an unfortunate turn of phrase - "destroyed". Since then, conspiracy theorists and those that parrot their nonsense have obsessively fixated upon it because that's what they do. However, if you have a modicum of intelligence, critical faculty, integrity and the will to objectively appraise the information that you receive and you place his sentence within it's full and intended context, then it's abundantly clear what he is referring to. The premature cancellation of Apollo in 1972 due to the retraction of funding from congress and the lack of political and public will, resulted in the abandonment of the specific expertise, the tooling, the production processes, the plants and most significantly, the heavy lift capability that sent crewed missions to the moon. Emphasis was placed instead on low Earth orbit, primarily, the development of the Space Shuttle which promised much, but failed to deliver in terms of it's commercial and financial returns and launch cadence. The other huge project was obviously the construction of the ISS. Neither of which send man to the surface of the moon. Deep space exploration became the preserve of unmanned missions - robotic landers and probes.
"and now they say they meed new technology to go again"
Pettit was speaking prior to the approval of Project Artemis that will return man to the surface of the moon. The technology of Apollo is old and obsolete but since much of the hardware remains, you can understand that his use of the word 'destroyed' was metaphorical. Rebuilding a manned programme to the moon using modern technology that has superseded that of Apollo has been a protracted and painstaking process on a budget that is a fraction of that of Apollo. Why is it even necessary to explain this?
"Sounds pretty fishy to me"
So because you know nothing about it and lack the intelligence to comprehend it you instead conclude that NASA are lying.
"Wheres the real proof ???"
The scientific, independent and third party evidence in support of the moon landings that you are completely oblivious to is manifest, demonstrable and has a voice of its own.
"Wheres the real proof the earth is not a globe ???"
What the hell are you talking about now? There is none whatsoever. We have known that the Earth is spherical since Eratosthenes measured it in 240BC. Why are you changing the subject?
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@alexledezma6811
".... fine...that's all on You"
Nothing to do with me - I am irrelevant to this exchange.
"I do have one question..., why is it that the globalists worry so much about theories that confront the status quo in science...?"
What do you mean by 'globalists'? A Globalist is an individual who supports the belief that economic and foreign policy should be planned internationally, rather than serving the interests of individual countries.
You get debunked because anti-science and misinformation are highly damaging. You are challenged to evidence your claims which none of you are able to do. Flat earthers conspiracy theorists are all crooks, not just idiots. petty crooks, true, but part of their business model is to create an environment of distrust of science and rational thought, and refusal to ever measure anything. and that is a serious problem for society. besides which, they spread so much malice that it's a good idea to pound them flat while they are small.
"P S ..the flat earth movement belief has been around since ancient times"
Same with dragons, pixies, faeries, ghosts and ghouls - so what? Known science is not a question of "belief".
"But after Galileo and his peers the Geo centric idea has been imposed."
Nope, wrong again. We have known that the Earth is a globe since antiquity.
"only until about 10 years ago has the flat earth movement is taken impulse"
And when you say "impulse" what bearing does any of this nonsense have on reality? You mean the grifters behind it make crap videos, host ridiculous conferences and profiteer out of the idiocy of others.
"and according to studies, about 30 to 40 % of people in the american continent question the Geo centric idea."
What "studies" would they be? The highest that I've seen is range between 9-12%, which is still shocking, but is simply a consequence of granting online access to exceedingly dim people that think that watching an Eric Dubay video makes them sound informed and clever and substitutes for the education that eluded them.
I went through school in the 1970s and 1980s. There would invariably be a couple of students who couldn’t quite grasp certain concepts in science. They were insignificant irrelevant and they'd live their lives in obscurity but live off the spoils of those that shaped the world through science and education. Today they find each other on the internet which they think compensates for their failings. They find validation for their lack of understanding, and then they embrace it. They’re fed the hook “you’re one of the smart ones, you always knew they were lying to you.” Facts don’t matter at that point, and yet another conspiracy believer is born. Throw in that special feeling conferred by adherence to conspiracy theory and an ample helping of illusory superiority/Dunning Kruger effect, and we have what we have. Adherents to these belief systems are impervious to evidence to the contrary, and prefer the company of like minded simpletons to that of people who try to educate them. The embracing of a conspiratorial narrative often helps loners to find a tribe in which they are welcomed. That social, tribal belonging is a very strong driver, and the fear of rejection or estrangement from a group that welcomed and accepted them is incredibly powerful.This is all just an unfortunate, yet understandable side effect of the internet. This is something we’re always going to have to battle in the interest of edification.
"To belive that almost half the population are idiots would qualify as being dumber than the actual issue..."
Contrary to your claim, half of the American population do not subscribe to a flat earth belief. That 40% of the American population are idiots is probably reasonably accurate as the next US election will doubtless demonstrate. Half the world is composed of idiots, the other half of people clever enough to take indecent advantage of them.
"The thing about smart people is that they seem like crazy to dumb people"
Those that perpetrate flat Earth theory are not crazy - they are simply extortionists that harvest stupidity for profit - and as such, you are the target market.
A wise man can play a fool, but a fool can't play wise.
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@syedrabeeh
"Cut the crap / 1969 —- they said it was shot on a Leica and there is no way that camera could have been operated unman at that time , also how did you take the footage back without recovering the camera or the film."
I've read this several times - and I think you meant 'unmanned' yes? Could you explain precisely why remote control technology was impossible in 1971/1972? Since you haven't the first idea what you are talking about it's necessary to explain to you that the GCTA that captured the departure of Apollo 15, 16 and 17 was not used in any landings prior to this due to the fact that it was only the later J Missions that took the lunar rovers.
"also how did you take the footage back without recovering the camera or the film."
This comment is so breathtakingly stupid - even for you - I'll leave you to work out why.
"Bro take a deep breath and look at our atmosphere, no human have ever left exosphere"
Actually 24 human beings have journeyed beyond the boundary of the exposphere, which extends to approximately 6,200 miles from our planet.
Perhaps you are referring to the geocorona. A recent discovery based on observations by the ESA/NASA Solar and Heliospheric Observatory, SOHO, shows that the gaseous layer that wraps around Earth reaches up to 630 000 km away, or 50 times the diameter of our planet, far further than previously postulated. One of the spacecraft instruments, SWAN, used its sensitive sensors to trace the hydrogen signature and precisely detect how far the very outskirts of the geocorona are. These observations that have not been made before could be done only at certain times of the year, when the Earth and its geocorona came into view for SWAN.
You realise that by "atmosphere", this means 0.5 atoms per cc on the lunar surface? Of course you didn't.
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