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  • I keep shining a flashlight on a wall, but it won't go through

    From RichA@21:1/5 to All on Wed Feb 23 21:02:52 2022
    https://phys.org/news/2022-02-axion-dark.html

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From StarDust@21:1/5 to RichA on Wed Feb 23 22:10:28 2022
    On Wednesday, February 23, 2022 at 9:02:56 PM UTC-8, RichA wrote:
    https://phys.org/news/2022-02-axion-dark.html

    Russia attacking Ukraine!
    War is ON!
    https://www.bbc.com/news/live/world-europe-60454795

    You worry about your flashlight?
    🤔🙄

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Al Jacks@21:1/5 to All on Thu Feb 24 07:54:04 2022
    T24gMi8yNC8yMiAwMToxMCwgU3RhckR1c3Qgd3JvdGU6DQo+IE9uIFdlZG5lc2RheSwgRmVi cnVhcnkgMjMsIDIwMjIgYXQgOTowMjo1NiBQTSBVVEMtOCwgUmljaEEgd3JvdGU6DQo+PiBo dHRwczovL3BoeXMub3JnL25ld3MvMjAyMi0wMi1heGlvbi1kYXJrLmh0bWwNCj4gDQo+IFJ1 c3NpYSBhdHRhY2tpbmcgVWtyYWluZSENCj4gV2FyIGlzIE9OIQ0KPiBodHRwczovL3d3dy5i YmMuY29tL25ld3MvbGl2ZS93b3JsZC1ldXJvcGUtNjA0NTQ3OTUNCj4gDQo+IFlvdSB3b3Jy eSBhYm91dCB5b3VyIGZsYXNobGlnaHQ/DQo+IPCfpJTwn5mEDQoNCk1vc3Qgb2YgaGlzIHBv c3RzIGFyZSBpcnJlbGV2YW50IGhlcmUsIHNlZW1zIHRvIHdoaW5lIG92ZXIgdGhlIA0KdW5p bXBvcnRhbnQgZm9yIHdoYXRldmVyIHJlYXNvbi4gIENvbnN0YW50bHkgZ29lcyBvbiBhbmQg b24gb3ZlciBNdXNrIA0KYW5kIGhpcyBzYXRlbGxpdGVzIHdhcm5pbmcgaG93IHRoZXknbGwg ZGVzdHJveSBncm91bmQgYmFzZWQgYXN0cm9ub215LCANCmJ1dCB3aGVuIGNhbGxlZCBvdXQg b24gaXQgYW5kIGNvcnJlY3RlZCAobWVudGlvbiBvZiBzdGFja2luZyB0byBvdmVyY29tZSAN Cml0LCBmb3IgZXhhbXBsZSksIGhlIGVpdGhlciBkb2Vzbid0IHVuZGVyc3RhbmQgb3IgY2hv b3NlcyB0byBpZ25vcmUgdGhlIA0KY29uY2VwdC4gIFRoZSBzYW1lIHdpdGggbWFueSBvZiBo aXMgb3RoZXIgY29tcGxhaW50cyBoZXJlLg0K

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From RichA@21:1/5 to StarDust on Thu Feb 24 07:18:17 2022
    On Thursday, 24 February 2022 at 01:10:32 UTC-5, StarDust wrote:
    On Wednesday, February 23, 2022 at 9:02:56 PM UTC-8, RichA wrote:
    https://phys.org/news/2022-02-axion-dark.html

    Russia attacking Ukraine!
    War is ON!
    https://www.bbc.com/news/live/world-europe-60454795

    You worry about your flashlight?
    🤔🙄

    Woosh!! I'm sure you've heard that a lot.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From RichA@21:1/5 to Al Jacks on Thu Feb 24 07:17:59 2022
    On Thursday, 24 February 2022 at 07:54:09 UTC-5, Al Jacks wrote:
    On 2/24/22 01:10, StarDust wrote:
    On Wednesday, February 23, 2022 at 9:02:56 PM UTC-8, RichA wrote:
    https://phys.org/news/2022-02-axion-dark.html

    Russia attacking Ukraine!
    War is ON!
    https://www.bbc.com/news/live/world-europe-60454795

    You worry about your flashlight?
    🤔🙄
    Most of his posts are irrelevant here, seems to whine over the
    unimportant for whatever reason. Constantly goes on and on over Musk
    and his satellites warning how they'll destroy ground based astronomy,
    but when called out on it and corrected (mention of stacking to overcome
    it, for example), he either doesn't understand or chooses to ignore the concept. The same with many of his other complaints here.

    Yes, professional astronomers who've complained about Musk's constellation of satellites are wrong, but you are right...

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Chris L Peterson@21:1/5 to All on Thu Feb 24 09:04:54 2022
    On Thu, 24 Feb 2022 07:17:59 -0800 (PST), RichA <rander3128@gmail.com>
    wrote:

    On Thursday, 24 February 2022 at 07:54:09 UTC-5, Al Jacks wrote:
    On 2/24/22 01:10, StarDust wrote:
    On Wednesday, February 23, 2022 at 9:02:56 PM UTC-8, RichA wrote:
    https://phys.org/news/2022-02-axion-dark.html

    Russia attacking Ukraine!
    War is ON!
    https://www.bbc.com/news/live/world-europe-60454795

    You worry about your flashlight?
    ??
    Most of his posts are irrelevant here, seems to whine over the
    unimportant for whatever reason. Constantly goes on and on over Musk
    and his satellites warning how they'll destroy ground based astronomy,
    but when called out on it and corrected (mention of stacking to overcome
    it, for example), he either doesn't understand or chooses to ignore the
    concept. The same with many of his other complaints here.

    Yes, professional astronomers who've complained about Musk's constellation of satellites are wrong, but you are right...

    Yes, they are wrong in some cases. But if you read closely, you'll see
    that the concern is mainly in two areas- interference with just a
    couple of survey programs, and possible interference with some radio
    astronomy. 99% of professional research is largely unaffected (as is
    100% of amateur imaging).

    As there is no reason to expect anything other than an increase in
    large constellations of satellites, given their broad social value, I
    can all but guarantee that we'll see technical solutions that mitigate
    their impact on the tiny number of projects where they are a factor.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Al Jacks@21:1/5 to All on Thu Feb 24 10:28:12 2022
    T24gMi8yNC8yMiAxMDoxNywgUmljaEEgd3JvdGU6DQo+IE9uIFRodXJzZGF5LCAyNCBGZWJy dWFyeSAyMDIyIGF0IDA3OjU0OjA5IFVUQy01LCBBbCBKYWNrcyB3cm90ZToNCj4+IE9uIDIv MjQvMjIgMDE6MTAsIFN0YXJEdXN0IHdyb3RlOg0KPj4+IE9uIFdlZG5lc2RheSwgRmVicnVh cnkgMjMsIDIwMjIgYXQgOTowMjo1NiBQTSBVVEMtOCwgUmljaEEgd3JvdGU6DQo+Pj4+IGh0 dHBzOi8vcGh5cy5vcmcvbmV3cy8yMDIyLTAyLWF4aW9uLWRhcmsuaHRtbA0KPj4+DQo+Pj4g UnVzc2lhIGF0dGFja2luZyBVa3JhaW5lIQ0KPj4+IFdhciBpcyBPTiENCj4+PiBodHRwczov L3d3dy5iYmMuY29tL25ld3MvbGl2ZS93b3JsZC1ldXJvcGUtNjA0NTQ3OTUNCj4+Pg0KPj4+ IFlvdSB3b3JyeSBhYm91dCB5b3VyIGZsYXNobGlnaHQ/DQo+Pj4g8J+klPCfmYQNCj4+IE1v c3Qgb2YgaGlzIHBvc3RzIGFyZSBpcnJlbGV2YW50IGhlcmUsIHNlZW1zIHRvIHdoaW5lIG92 ZXIgdGhlDQo+PiB1bmltcG9ydGFudCBmb3Igd2hhdGV2ZXIgcmVhc29uLiBDb25zdGFudGx5 IGdvZXMgb24gYW5kIG9uIG92ZXIgTXVzaw0KPj4gYW5kIGhpcyBzYXRlbGxpdGVzIHdhcm5p bmcgaG93IHRoZXknbGwgZGVzdHJveSBncm91bmQgYmFzZWQgYXN0cm9ub215LA0KPj4gYnV0 IHdoZW4gY2FsbGVkIG91dCBvbiBpdCBhbmQgY29ycmVjdGVkIChtZW50aW9uIG9mIHN0YWNr aW5nIHRvIG92ZXJjb21lDQo+PiBpdCwgZm9yIGV4YW1wbGUpLCBoZSBlaXRoZXIgZG9lc24n dCB1bmRlcnN0YW5kIG9yIGNob29zZXMgdG8gaWdub3JlIHRoZQ0KPj4gY29uY2VwdC4gVGhl IHNhbWUgd2l0aCBtYW55IG9mIGhpcyBvdGhlciBjb21wbGFpbnRzIGhlcmUuDQo+IA0KPiBZ ZXMsIHByb2Zlc3Npb25hbCBhc3Ryb25vbWVycyB3aG8ndmUgY29tcGxhaW5lZCBhYm91dCBN dXNrJ3MgY29uc3RlbGxhdGlvbiBvZiBzYXRlbGxpdGVzIGFyZSB3cm9uZywgYnV0IHlvdSBh cmUgcmlnaHQuLi4NCg0KV2hhdCBzbyBjYWxsZWQgInByb2Zlc3Npb25hbCIgYXN0cm9ub21l cnM/ICBOb3QgYW55IHJlcG9ydHMgdGhhdCBJJ3ZlIA0KcmVhZC4gIFlvdXIgc291cmNlcyBh cmUgb2Z0ZW4gYm9ndXMgdG9vLg0KDQpJJ20gcmlnaHQgYmVjYXVzZSwgYXMgYW55ICJwcm9m ZXNzaW9uYWwiIGFzdHJvbm9tZXIga25vd3MsIHNpbXBsZSBpbWFnZSANCnByb2Nlc3Npbmcg dGVjaG5pcXVlcyB3aWxsIGVsaW1pbmF0ZSBhbnkgaXNzdWVzIHBvc2VkIGJ5IHRoZSBzYXRl bGxpdGVzLiANCiAgSG93IG1hbnkgdGltZXMgaGFzIHRoaXMgYmVlbiByZWl0ZXJhdGVkIHRv IHlvdT8gIDEwLCAxMDAsIDEwMDA/DQoNCg==

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From RichA@21:1/5 to Chris L Peterson on Thu Feb 24 19:23:44 2022
    On Thursday, 24 February 2022 at 11:04:58 UTC-5, Chris L Peterson wrote:
    On Thu, 24 Feb 2022 07:17:59 -0800 (PST), RichA <rande...@gmail.com>
    wrote:
    On Thursday, 24 February 2022 at 07:54:09 UTC-5, Al Jacks wrote:
    On 2/24/22 01:10, StarDust wrote:
    On Wednesday, February 23, 2022 at 9:02:56 PM UTC-8, RichA wrote:
    https://phys.org/news/2022-02-axion-dark.html

    Russia attacking Ukraine!
    War is ON!
    https://www.bbc.com/news/live/world-europe-60454795

    You worry about your flashlight?
    ??
    Most of his posts are irrelevant here, seems to whine over the
    unimportant for whatever reason. Constantly goes on and on over Musk
    and his satellites warning how they'll destroy ground based astronomy,
    but when called out on it and corrected (mention of stacking to overcome >> it, for example), he either doesn't understand or chooses to ignore the
    concept. The same with many of his other complaints here.

    Yes, professional astronomers who've complained about Musk's constellation of satellites are wrong, but you are right...
    Yes, they are wrong in some cases. But if you read closely, you'll see
    that the concern is mainly in two areas- interference with just a
    couple of survey programs, and possible interference with some radio astronomy. 99% of professional research is largely unaffected (as is
    100% of amateur imaging).

    As there is no reason to expect anything other than an increase in
    large constellations of satellites, given their broad social value, I
    can all but guarantee that we'll see technical solutions that mitigate
    their impact on the tiny number of projects where they are a factor.

    You people are living in a fantasy world. You might as well contend they could have fixed the Hubble by simply using image manipulation and processing software. Do any of you even OWN telescopes?

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Chris L Peterson@21:1/5 to All on Thu Feb 24 21:38:56 2022
    On Thu, 24 Feb 2022 19:23:44 -0800 (PST), RichA <rander3128@gmail.com>
    wrote:

    Yes, they are wrong in some cases. But if you read closely, you'll see
    that the concern is mainly in two areas- interference with just a
    couple of survey programs, and possible interference with some radio
    astronomy. 99% of professional research is largely unaffected (as is
    100% of amateur imaging).

    As there is no reason to expect anything other than an increase in
    large constellations of satellites, given their broad social value, I
    can all but guarantee that we'll see technical solutions that mitigate
    their impact on the tiny number of projects where they are a factor.

    You people are living in a fantasy world. You might as well contend they could have fixed the Hubble by simply using image manipulation and processing software. Do any of you even OWN telescopes?

    Yes, and I use it a lot. Thousands of images, and never one ruined by
    a satellite.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Quadibloc@21:1/5 to RichA on Fri Feb 25 02:30:25 2022
    On Thursday, February 24, 2022 at 8:23:47 PM UTC-7, RichA wrote:

    You people are living in a fantasy world. You might as well contend
    they could have fixed the Hubble by simply using image manipulation
    and processing software. Do any of you even OWN telescopes?

    It's not quite that bad, unwanted spots and streaks of light can be
    removed from photographs by image processing software.

    However, there's no way to tell if anything was behind them, so such
    processed images may be deceptive.

    One can deconvolute blurry pictures too. But putting a correcting mirror
    in Hubble produced much better results, although still inferior to having a primary mirror that was properly figured.

    John Savard

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Al Jacks@21:1/5 to RichA on Fri Feb 25 07:12:00 2022
    On 2/24/22 22:23, RichA wrote:
    On Thursday, 24 February 2022 at 11:04:58 UTC-5, Chris L Peterson wrote:
    On Thu, 24 Feb 2022 07:17:59 -0800 (PST), RichA <rande...@gmail.com>
    wrote:
    On Thursday, 24 February 2022 at 07:54:09 UTC-5, Al Jacks wrote:
    On 2/24/22 01:10, StarDust wrote:
    On Wednesday, February 23, 2022 at 9:02:56 PM UTC-8, RichA wrote:
    https://phys.org/news/2022-02-axion-dark.html

    Russia attacking Ukraine!
    War is ON!
    https://www.bbc.com/news/live/world-europe-60454795

    You worry about your flashlight?
    ??
    Most of his posts are irrelevant here, seems to whine over the
    unimportant for whatever reason. Constantly goes on and on over Musk
    and his satellites warning how they'll destroy ground based astronomy, >>>> but when called out on it and corrected (mention of stacking to overcome >>>> it, for example), he either doesn't understand or chooses to ignore the >>>> concept. The same with many of his other complaints here.

    Yes, professional astronomers who've complained about Musk's constellation of satellites are wrong, but you are right...
    Yes, they are wrong in some cases. But if you read closely, you'll see
    that the concern is mainly in two areas- interference with just a
    couple of survey programs, and possible interference with some radio
    astronomy. 99% of professional research is largely unaffected (as is
    100% of amateur imaging).

    As there is no reason to expect anything other than an increase in
    large constellations of satellites, given their broad social value, I
    can all but guarantee that we'll see technical solutions that mitigate
    their impact on the tiny number of projects where they are a factor.

    You people are living in a fantasy world. You might as well contend they could have fixed the Hubble by simply using image manipulation and processing software. Do any of you even OWN telescopes?

    From the nature of your incessant, irrelevant posts, it sounds like YOU
    are the one who actually doesn't own a scope, otherwise you would know
    all about image processing techniques. During Hubble's initial years,
    there probably wouldn't have been such software, but today, yes. There
    are deblur algorithms that can do wonders with such imagery given the
    proper techniques and processing.

    Why not try a little reading up on these topics sometime, from
    legitimate, reputable sources, instead of taking up unnecessary group
    space and time with pointless questioning and commentary. When's the
    last time YOU actually contributed something useful here instead of complaining?

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Chris L Peterson@21:1/5 to jsavard@ecn.ab.ca on Fri Feb 25 07:10:39 2022
    On Fri, 25 Feb 2022 02:30:25 -0800 (PST), Quadibloc
    <jsavard@ecn.ab.ca> wrote:

    On Thursday, February 24, 2022 at 8:23:47 PM UTC-7, RichA wrote:

    You people are living in a fantasy world. You might as well contend
    they could have fixed the Hubble by simply using image manipulation
    and processing software. Do any of you even OWN telescopes?

    It's not quite that bad, unwanted spots and streaks of light can be
    removed from photographs by image processing software.

    However, there's no way to tell if anything was behind them, so such >processed images may be deceptive.

    One can deconvolute blurry pictures too. But putting a correcting mirror
    in Hubble produced much better results, although still inferior to having a >primary mirror that was properly figured.

    It is very rare for an astronomical image to consist of a single
    image. You would not want to do this even if there were no satellites. Airplanes cross my images more often than satellites, and cosmic ray
    hits create streaks more than either of these.

    Most astronomical images consist of a series that is stacked together
    using some kind of median averaging, which automatically removes all
    these bright artifacts. The trivial S/N reduction in pixels that have
    one less layer stacked does not produce anything visible. It is almost
    never necessary to use any image processing techniques to remove
    artifacts.

    Some scientific imaging utilizes a single image, such as photometric
    and astrometric projects. But these are unconcerned with aesthetics,
    so streaks only matter if they actually cross the target. Since the
    target in these cases is only a few pixels, interference is rare. I
    just saw a report the other day regarding that kind of issue with
    professional images, and the conclusion was that it was rare enough to
    not represent a problem.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)