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MRA
Kyplanet
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Comments by "MRA" (@yassassin6425) on "" video.
Then you'll have no problem identifying just one - go ahead then. And while you're at it, you can explain why it is that you, an insignificant, gullible conspiracy believing nobody on the comments section of You Tube claims to know better than entire branches of science, specialist fields such as particle physics, radiobiology, astronautical engineering and the physicist that the belts were named after himself.
9
Very good question. Because the computers aboard modern spacecraft are much more powerful than those carried by NASA’s Apollo moon missions during the 1960s and 1970s, such advanced high density electronics are more susceptible to the levels of radiation found in the Van Allen belts and beyond. The read only core rope memory used by Apollo was radiation hard. In contrast, radiation ionising the underlying semiconductor material - for instance when an electron tunnels into a transistor - can cause adverse effects. Look up single event upset and the more destructive single event effects/latch-up for more information. The large bipolar (NPN and PNP) transistors in the AGC were not very sensitive to radiation. Modern MOSFETs are much more radiation sensitive. Orion's onboard systems use modern electronics that are far more vulnerable to particle radiation than their Apollo-era counterparts. When high-energy protons and other ions hit orbiting spacecraft, they often leave ionisation tracks in electronic chips. These tracks can upset spacecraft computer memories and otherwise disrupt sensitive electronics. This was not a problem for the Apollo design.
3
@Azuciea So you claim something that you clearly don't understand is fake because you have been fed a false premise by online conspiracy theory. Magnetic tapes were used to back up raw data at source. This consisted of telemetry and slow-scan broadcast signals sent by Unified S-Band. Once this had been extrapolated, converted and transcribed they were no longer required. Magnetic tape decays and is not intended for archival use. It is also very expensive and so was designed to be reused. For this reason, some of the tapes pertaining to the Apollo 11 EVA were erased, however having served their purpose, the contents was not longer required. With the tapes now defunct and the machinery for playing them obsolete, some from Apollo 11 and preceding/subsequent missions have been sold via auction to private collectors, because they are useless but not without financial value.
2
@fintanmccann1128 "Calm your butt down buddy!" You seem to be the one that riled here. "Take another booster shot, Mister " I am science!" Why are you changing the subject? The physics of the VABs explained in this video is understood, measured and demonstrable - nothing to do with me. The science is ineluctable and has a voice of its own, I am not the personification of that. What precisely is your point? And what twisted world have we now become in which freaks like you use vaccination as a term of abuse? I don't require a booster shot. Some elderly and vulnerable members of society do. However I can tell you one "shot" that I have never needed, Small Pox. Is it vaguely possible that even your feeble mind can work out why that may be? "How much self awareness can you lack?" Said the gullible Dunning Kruger afflicted believer in dumb online conspiracy theory. "Proving his point by attacking him, even if he is incorrect." To clarify, he attacked this video claiming that it contained lies. I challenged that and asked him to substantiate this - and how you people detest that. How is that proving his point? He is the one that needs to provide proof of his claim. I was also curious to know why an arrogant outspoken nobody and gobshite on the comments section of You Tube assumes to know more than entire branches of science and specialist fields of expertise such as aerospace engineering, radiobiology and astrophysics? Perhaps you could answer that or enlighten us on the "lies" told in this video? Go ahead then.
1