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Quote from: Europa on 20/07/2021 20:12:16Quote from: Just thinking on 20/07/2021 20:02:00Quote from: Europa on 20/07/2021 19:55:53Actually because of the mirror flaw the software was not able to achieve a focus, at least that is what we were told. I still say that the mirror was fine when pointed at the Kremlin which was the purpose. But people like you think that blurry images of nebulas were importantCan you explain how it is possible for the earth to be in focus but not the stars? Optics with misshapen lenses are no good at any distance.Hubble was a camera the mirror was only one part, lenses and computer software and a CCD were all required for focus and image captureNextNo.When you write "Next" like that you have to have answered the question, and you didn'tIf it was broken, how did it work?
Quote from: Just thinking on 20/07/2021 20:02:00Quote from: Europa on 20/07/2021 19:55:53Actually because of the mirror flaw the software was not able to achieve a focus, at least that is what we were told. I still say that the mirror was fine when pointed at the Kremlin which was the purpose. But people like you think that blurry images of nebulas were importantCan you explain how it is possible for the earth to be in focus but not the stars? Optics with misshapen lenses are no good at any distance.Hubble was a camera the mirror was only one part, lenses and computer software and a CCD were all required for focus and image captureNext
Quote from: Europa on 20/07/2021 19:55:53Actually because of the mirror flaw the software was not able to achieve a focus, at least that is what we were told. I still say that the mirror was fine when pointed at the Kremlin which was the purpose. But people like you think that blurry images of nebulas were importantCan you explain how it is possible for the earth to be in focus but not the stars? Optics with misshapen lenses are no good at any distance.
Actually because of the mirror flaw the software was not able to achieve a focus, at least that is what we were told. I still say that the mirror was fine when pointed at the Kremlin which was the purpose. But people like you think that blurry images of nebulas were important
LOL exactly what are you hoping to achieve here, and why is this so important to you?Next
what are you hoping to achieve here, and why is this so important to you?
Quote from: Europa on 20/07/2021 20:24:09what are you hoping to achieve here, and why is this so important to you?Science, because this is a science page.Can you answer one simple question before you go?If the US military wanted to build a damned great spy satellite, why would they bother to lie about it?Much better to brag about it- to tell the Russians to be careful or we would post pictures of their bald patches or something.Why pretend it was a telescope?
Please pay attention, Adderall may help
If the US military wanted to build a damned great spy satellite, why would they bother to lie about it?
Quote from: Europa on 20/07/2021 20:38:29Please pay attention, Adderall may help Do you have old water pipes at home or is there a possibility that you're getting heavy metal poisoning from somewhere else?
Quote from: Bored chemist on 20/07/2021 20:34:48If the US military wanted to build a damned great spy satellite, why would they bother to lie about it?
So that the Premier would not know to cover his mail?
You have no answers or rebuttals, all you have are vein attempts at distraction
Quote from: Europa on 20/07/2021 20:49:47So that the Premier would not know to cover his mail?He probably doesn't read it outside...You can not put a big satellite up there without the Russians knowing.If you as just some ill-informed nobody on the web think it might be a spy camera than it's sensible to recognise that the Russians might think so too, and make sure they read the post in the office rather than the garden.So...Quote from: Bored chemist on 20/07/2021 20:47:58Quote from: Bored chemist on 20/07/2021 20:34:48If the US military wanted to build a damned great spy satellite, why would they bother to lie about it?
Logic works, try it sometime
you still do not tell your enemy how your secret spy systems work.
Quote from: Europa on 20/07/2021 21:59:35 you still do not tell your enemy how your secret spy systems work.Do you mean, you don't give them high definition video images of you installing it?//www.youtube.com/watch?v=7GQnUMVyU2wIf there was any chance you were right then the Russians would have been looking very carefully at that video (and the others).Your right about logic.Logic tells you that satellite wasn't a secret.
As I understand it, the Hubble chassis and mirror were leftovers from an obsolete US spy satellite program. Space programs always keep a model on the ground so they can debug problems experienced in orbit. When this reconnaissance program was superseded, the ground model also become surplus to needs - so they offered it to NASA.I understand that a similar offer was made more recently to NASA, when the subsequent spy satellite ground model also became surplus to needs. However, NASA was more interested in infra-red to see the early universe, stellar nurseries and the center of our galaxy, and went with the James Webb space telescope design instead. James Webb is to be launched later this year, hopefully..(it is now too expensive to be abandoned!).There was definitely a problem in grinding the Hubble mirror for its revised mission. Apparently, the military has equipment that could have measured the mirror to the required accuracy, but NASA, as a civilian body, was not permitted to make use of it.See: https://en.wikipedia.org/wiki/KH-11_Kennen#Size_and_masshttps://www.washingtonpost.com/national/health-science/nasa-gets-military-spy-telescopes-for-astronomy/2012/06/04/gJQAsT6UDV_story.html
Actually the American military does not make mirrors,
The Hubble mirror was the highest optic ever put in a spy satellite