Comments by "MRA" (@yassassin6425) on "Apollo 17: Why Did America Cease Moon Landing Operations? | Secrets of the Last Lunar Landing" video.

  1. 4
  2. 3
  3. "You are not able to go now." Project Artemis sends its regards. We are simply awaiting the development of the HLS from Space X. "Never mind that 1969 was all bullshit to scare Russians in the Cold War." The Soviet Union tracked all the Apollo missions to the moon. They were even able to detect the experimental packages left there by astronauts. "The temperature in the moon surf, according to scientists like yourself, is 120 degrees celsius, which means you would have to have extremely cold suits" Actually, shedding heat from within was the main challenge. You are getting confused with surface temperature and these are equilibrium figures which take time to reach. A day on the moon is equivalent to 29.5 days on Earth. All of the Apollo missions were timed to arrive at the lunar dawn. In addition to this, in a vacuum there is no convection and therefore, obviously, no air temperature. "They look like a goldfish aquarium upside down. With this protection, you could cook your brain in 5 minutes" "I don't understand something therefore it must be fake" "stop the bullshit computer processor on the Apollo missions, which was as efficient as a 5-dollar calculator today" Incorrect. The AGC was very compact and a brilliant piece of kit. What you people fail to understand is the fact that it was purpose-built, and did what was required incredibly well. It also could handle overloads by resetting itself without losing the instruction stack it had which was prewritten onto rope core memory, and would re prioritise those commands on the fly. IBM engineers also developed the mini integrated circuits that meant computers could be small enough to fit inside a rocket or spacecraft. It was a brilliant piece of technology for the time. You also likely had no idea that this was supported on the ground by the Real-Time Computer Complex (RTCC) which was an IBM computing and data processing system at NASA's Manned Spacecraft Center in Houston. It collected, processed and sent to Mission Control the information needed to direct every phase of an Apollo/Saturn mission. It computed what the space vehicle was doing and compared that with what it should be doing. RTCC worked in real-time -- so fast, there was virtually no time between receiving and solving a computing problem. IBM 7094-11 computers were used in the RTCC during NASA's Gemini program and on the first three Apollo/Saturn missions. Later, IBM System/360 Model 75J mainframes, plus peripheral storage and processing equipment, were employed. Two computers were used during a mission: one was primary; the other operated identically but as standby. Why are you making what you assume to be authoritative comments about subjects that you have no knowledge of whatsoever? The spacecraft computers had a performance comparable to the first generation of personal computers like the Apple 2 and Commodore 64 (the guidance computer had RAM of 4KB, and a 32KB hard disk). They were only required to take large amounts of numerical data and organise it into a more useful format. That original data was calculated by the main frames at NASA, and then beamed up to the spacecraft by radio telescope at the rate of 1,200 bits per second. They did not need the power for touch screens or to hold graphics etc like today’s smartphones. "and with that, you could correct the route and avoid thousands of km of sun radiation." There were no CMEs/SPEs in the direction of Apollo during any of the nine voyages to the moon. What on Earth are you talking about "correct the route"? "God knows where you got the information about the radiation spots." What do you mean. "radiation spots" - what the hell are you going on about? What does this even mean? "Remember, there were non-existent satellites at that time that traveled 360 000 km to the moon and circulated at 4000 km per hour around the moon orbit?" Again, what are you talking about? The first unmanned probe placed into lunar orbit was Luna 10 by the Soviets in 1966. "Detach the moon lander, land" Yes, it undocked from the CSM and descended to the surface, that was the general idea. "assemble the moon rover" The lunar rover was taken by the later J missions, Apollo 15, 16 and 17. It was folded and stowed in quadrant 1 of the descent stage equipment bay. What's your point? "under 120 degrees Celsius" Again, your incredulity concerning heat and temperature in a vacuum is irrelevant. "and play around What? "The flag looks like it is made of nilon, so it resists pretty much at those temperatures." I think you mean 'nylon'. And to reiterate, there is no air temperature/convection in a vacuum. Eventually they would have been bleached by the radiative heating from the sun and those that toppled over, conduction from the surface of the moon. "right them after taking photos and collecting samples of the moon jump on the moonlander. take off and catch the moon orbit module at 4000 km/h, attach with great precision one another, turn back to earth" What do you mean "turn back to Earth"? Are you really that dim? 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 rendez-vous 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. Apollo did not "turn back to Earth". 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. "pass the Van Alle belts again" At high velocity, through the sparsest regions in a very small space of time. So what? "avoiding concentration spots of solar radiation" Again, what the hell are you talking about? The VABs consist of diffuse toroidal volumes around the Earth's equator within which radiation levels are elevated by the planet's magnetic field trapping charged particles from the sun. The inner torus is populated by energetic protons which they passed through in mere minutes and against which the hull of the CM was an effective shield. The hull of an Apollo command module rated 7 to 8 g/cm2. The craft took an hour and a half to traverse the more extensive outer torus but this region has mainly low energy electrons and so was less of a concern to mission planners. Also the inclination of the trajectory being in the plane of the Moon's orbit avoided the strongest regions of the belts near the equator. the energies and the distribution of the charged particles within the Van Allen Belts, (alpha and beta radiation, which is easy to shield against in such concentrations), were well understood. That is why mission planners were able to calculate safe trajectories through them exposing the astronauts to as little as1 - 1.5 rems. "and enter the earth's atmosphere, perfectly landing on the Pacific." The command module performed a controlled double dip reentry using and ablative heat shield to withstand and protect the craft form the 5,000 °F temperatures generated by reentry. After entering the atmosphere, the acceleration built, peaking at 6 g (59 m/s²). This dropped as they slowed down due to aerobraking, and emerged from radio blackout. Passing through 7,300 metres (24,000 ft), the apex cover was blown by a pyrotechnic charge. This exposed the two sets of parachutes. First the two drogue parachutes were released, which slowed and stabilized the capsule from 310mph to 170mph. They pulled out the three large main parachutes some twenty seconds later which slowed the CM to around 22mph for the targeted splashdown zone in the Pacific Ocean. "All this is done with a 5-dollar calculator computer from Apollo, right???" No, wrong. Seriously, why are you doing this to yourself?
    3
  4. 2
  5. 2
  6. 2
  7. 2
  8. 2
  9. 2
  10. 2
  11. 2
  12. 2
  13. 2
  14. 2
  15. 2
  16. 2
  17. 2
  18. 2
  19. 2
  20. 1
  21. 1
  22. 1
  23. 1
  24. 1
  25. 1
  26. 1
  27. 1
  28. 1
  29. No, it took Operation Paperclip and some German rocket engineers working alongside and in tandem with thousands of engineers to "get us to the moon". von Braun was indeed a member of the Nazi party, but he joined simply though expedience to get support and funding for his work. He despised Hitler and all that he ideologically stood for. He did not directly murder anyone. He had sleep-walked into a Faustian bargain—that he had worked with this regime without considering the darker implications of the Third Reich and the Nazi regime. As Technical Director at the Army Rocket Center at Peenemünde his work attracted more and more attention in higher levels. His refusal to join the party would have meant that he would have had to abandon his life's work. Of course he bears some responsibility for his own actions but in the case of concentration camp labor, there wasn’t much he could do to help. Yes, he still bears some moral responsibility for being in the middle of that situation, seeing the concentration camp labor personally, face to face but powerless to effect change. Von Braun admitted visiting the plant at Mittelwerk on many occasions, and later referred to conditions at the plant as "repulsive", but he maintained throughout his life that he never personally witnessed any deaths or beatings. By 1944 he was certainly privy to the atrocities but he denied ever having visited the Mittelbau-Dora concentration camp itself - and there is no evidence that he did, where 20,000 died from illness, beatings, hangings, and appalling working conditions. Yes the slave labour was being used - more people died though this that the actual V2 itself, but contrary to your claim, he is not directly responsible for thousands of dead civilians, no more so than those that lead the RAF bombing campaigns of Berlin, Dresden and Cologne, or Robert Oppenheimer was for Nagasaki and Hiroshima. The world was at war.
    1
  30. 1
  31. 1
  32. 1
  33. 1
  34. 1
  35. 1
  36. 1
  37. 1
  38. 1
  39. 1
  40. 1