How strange. Ta.Gfamily wrote: ↑Wed Sep 02, 2020 9:45 pmAhem, - east facing window for morning planetstenchboy wrote: ↑Wed Sep 02, 2020 9:31 pmGot a western facing window? Have need to be 'just getting up' in the night? Combine the two, have a peep out to the west around 3 or 4am if you're up and about.
Venus as a morning star* just now is absolutely stunning; shining bright like a miniature moon; no wonder, as Lucifer the light-bringer, it played such a part in the communual psychey in days gone by. It is a major object in the sky and much over-looked: it is nothing short of awesome! Pre-light-polution or out on the moors it must have been utterly magnificent.
I would imagine also - in fact I'm certain, that if you marked its position above the horizon just at sun rise - by so many fingers' width at arms-length - that you would be able to spot it during the day the same distance ahead of the sun.
Lots of cool points on offer there!
Jupiter and Saturn are good in the west in the evening though.
Astronomy and Space
- tenchboy
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Re: Astronomy and Space
If you want me Steve, just Snapchat me yeah? You know how to Snapchap me doncha Steve? You just...
Re: Astronomy and Space
There's a possible announcement tomorrow of a suggestion of evidence for life on Venus
An article on EarthSky.org that seems to have jumped the gun on an embargo date, then removed, but was Google Cached,
ETA - almost did an LPM on that one...
https://webcache.googleusercontent.com/ ... Oo2mS-amoI
An article on EarthSky.org that seems to have jumped the gun on an embargo date, then removed, but was Google Cached,
ETA - almost did an LPM on that one...
https://webcache.googleusercontent.com/ ... Oo2mS-amoI
My avatar was a scientific result that was later found to be 'mistaken' - I rarely claim to be 100% correct
ETA 5/8/20: I've been advised that the result was correct, it was the initial interpretation that needed to be withdrawn
Meta? I'd say so!
ETA 5/8/20: I've been advised that the result was correct, it was the initial interpretation that needed to be withdrawn
Meta? I'd say so!
- basementer
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Re: Astronomy and Space
I remember when there was discussion of what might have been microbial remnants on a bit of Mars rock, mid to late 1990s, Terry Pratchett said something close to "I want so much for this to be true that I hope the scientists are trying their hardest to prove that it isn't". I couldn't have phrased it better.Gfamily wrote: ↑Mon Sep 14, 2020 12:14 amThere's a possible announcement tomorrow of a suggestion of evidence for life on Venus
An article on EarthSky.org that seems to have jumped the gun on an embargo date, then removed, but was Google Cached,
ETA - almost did an LPM on that one...
https://webcache.googleusercontent.com/ ... Oo2mS-amoI
Money is just a substitute for luck anyway. - Tom Siddell
- shpalman
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Re: Astronomy and Space
Well I did find Phosphine Detected In The Atmosphere of Venus
It wouldn't be such a good sign if phosphine were detected in the atmosphere of my lab.
It wouldn't be such a good sign if phosphine were detected in the atmosphere of my lab.
having that swing is a necessary but not sufficient condition for it meaning a thing
@shpalman@mastodon.me.uk
@shpalman@mastodon.me.uk
- basementer
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Re: Astronomy and Space
Night Sky Tube map:
https://www.youtube.com/watch?v=1V9k3N_lZYI
https://www.youtube.com/watch?v=1V9k3N_lZYI
Money is just a substitute for luck anyway. - Tom Siddell
Re: Astronomy and Space
Ah well, it looks as though the paper about the black hole at the centre of the Earth has been retracted now:
https://pubmed.ncbi.nlm.nih.gov/31850126/
https://pubmed.ncbi.nlm.nih.gov/31850126/
Have you considered stupidity as an explanation
Re: Astronomy and Space
This probably has more information about Space Mission Operating Systems than you need, but it is an interesting read.
https://arstechnica.com/features/2020/1 ... ne-before/
https://arstechnica.com/features/2020/1 ... ne-before/
My avatar was a scientific result that was later found to be 'mistaken' - I rarely claim to be 100% correct
ETA 5/8/20: I've been advised that the result was correct, it was the initial interpretation that needed to be withdrawn
Meta? I'd say so!
ETA 5/8/20: I've been advised that the result was correct, it was the initial interpretation that needed to be withdrawn
Meta? I'd say so!
- shpalman
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Re: Astronomy and Space
Oh god they gave half the physics Nobel to Penrose.
having that swing is a necessary but not sufficient condition for it meaning a thing
@shpalman@mastodon.me.uk
@shpalman@mastodon.me.uk
Re: Astronomy and Space
Early tomorrow evening, if it's clear, you can put extend your arm and your fist can cover over 79% of all the moons in the Solar System.
Spoiler: Jupiter has 79
Spoiler: Jupiter has 79
My avatar was a scientific result that was later found to be 'mistaken' - I rarely claim to be 100% correct
ETA 5/8/20: I've been advised that the result was correct, it was the initial interpretation that needed to be withdrawn
Meta? I'd say so!
ETA 5/8/20: I've been advised that the result was correct, it was the initial interpretation that needed to be withdrawn
Meta? I'd say so!
Re: Astronomy and Space
The Arecibo Telescope can't be repaired after it's last hurricane damage, and will now be decommissioned.
https://www.nsf.gov/news/news_summ.jsp?cntn_id=301674
https://www.nsf.gov/news/news_summ.jsp?cntn_id=301674
- basementer
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Re: Astronomy and Space
What a shame.dyqik wrote: ↑Thu Nov 19, 2020 5:16 pmThe Arecibo Telescope can't be repaired after it's last hurricane damage, and will now be decommissioned.
https://www.nsf.gov/news/news_summ.jsp?cntn_id=301674
Money is just a substitute for luck anyway. - Tom Siddell
- tenchboy
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Re: Astronomy and Space
900 tons! that's 30 centurion tanks worth!with a 900-ton instrument platform hanging 450 feet above
(And wiki concurs)
In the pics it looks like two open girder cradles -some large stage lighting gantries- with the technical gubbinry hanging below, wouldn't have said it was more than ten tons.
Them's some cables and pylons!
If you want me Steve, just Snapchat me yeah? You know how to Snapchap me doncha Steve? You just...
Re: Astronomy and Space
The entire 900tonne instrument platform has now collapsed through the dishdyqik wrote: ↑Thu Nov 19, 2020 5:16 pmThe Arecibo Telescope can't be repaired after it's last hurricane damage, and will now be decommissioned.
https://www.nsf.gov/news/news_summ.jsp?cntn_id=301674
https://arstechnica.com/science/2020/12 ... collapsed/
Images
https://www.noticel.com/galeria/2020120 ... e-arecibo/
My avatar was a scientific result that was later found to be 'mistaken' - I rarely claim to be 100% correct
ETA 5/8/20: I've been advised that the result was correct, it was the initial interpretation that needed to be withdrawn
Meta? I'd say so!
ETA 5/8/20: I've been advised that the result was correct, it was the initial interpretation that needed to be withdrawn
Meta? I'd say so!
Re: Astronomy and Space
Captured on video - static camera followed by a Drone that was inspecting the platform at the time.Gfamily wrote: ↑Tue Dec 01, 2020 4:37 pmThe entire 900tonne instrument platform has now collapsed through the dishdyqik wrote: ↑Thu Nov 19, 2020 5:16 pmThe Arecibo Telescope can't be repaired after it's last hurricane damage, and will now be decommissioned.
https://www.nsf.gov/news/news_summ.jsp?cntn_id=301674
https://twitter.com/i/status/1334540065201012737
My avatar was a scientific result that was later found to be 'mistaken' - I rarely claim to be 100% correct
ETA 5/8/20: I've been advised that the result was correct, it was the initial interpretation that needed to be withdrawn
Meta? I'd say so!
ETA 5/8/20: I've been advised that the result was correct, it was the initial interpretation that needed to be withdrawn
Meta? I'd say so!
- basementer
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Re: Astronomy and Space
Someone in the comments had a similar thought to me - this is like having the Tacoma Narrows Bridge collapse caught on film, it's going to be studied for generations.Gfamily wrote: ↑Thu Dec 03, 2020 6:40 pmCaptured on video - static camera followed by a Drone that was inspecting the platform at the time.Gfamily wrote: ↑Tue Dec 01, 2020 4:37 pmThe entire 900tonne instrument platform has now collapsed through the dishdyqik wrote: ↑Thu Nov 19, 2020 5:16 pmThe Arecibo Telescope can't be repaired after it's last hurricane damage, and will now be decommissioned.
https://www.nsf.gov/news/news_summ.jsp?cntn_id=301674
https://twitter.com/i/status/1334540065201012737
Money is just a substitute for luck anyway. - Tom Siddell
Re: Astronomy and Space
Hmm, I don't think this has anything like the same impact. The Tacoma Narrows bridge was a somewhat unforeseen risk that engineers missed, while this is pretty much what engineers predicted, and why the decision was made to not to attempt to repair the telescope.basementer wrote: ↑Thu Dec 03, 2020 6:47 pmSomeone in the comments had a similar thought to me - this is like having the Tacoma Narrows Bridge collapse caught on film, it's going to be studied for generations.Gfamily wrote: ↑Thu Dec 03, 2020 6:40 pmCaptured on video - static camera followed by a Drone that was inspecting the platform at the time.
https://twitter.com/i/status/1334540065201012737
- basementer
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Re: Astronomy and Space
Both of them document the sequence in which components successively fail. It's not the sort of experiment that one can ethically carry out at this scale so having footage of the collapse is going to be valuable.
Money is just a substitute for luck anyway. - Tom Siddell
Re: Astronomy and Space
True, that's definitely useful. But I doubt this will make it into undergraduate physics lectures in the way that Tacoma Narrows illustrates driven resonant systems.basementer wrote: ↑Thu Dec 03, 2020 7:14 pmBoth of them document the sequence in which components successively fail. It's not the sort of experiment that one can ethically carry out at this scale so having footage of the collapse is going to be valuable.
Re: Astronomy and Space
I knew a guy who was an engineer on the Tacoma Narrows Bridge. He worked on the design of the piers, which he proudly said were the only bit that didn't fall down. He was an interesting guy. MrsBolo and I met at his retirement party, in 1998, when he was 92. His family had fled Russia during the revolution, ending up in Shanghai. Then he came to the U.S. for university and had a long career here in civil engineering as an academic and consultant and ... some other stuff. Full of stories.
- Boustrophedon
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Re: Astronomy and Space
Video of the collapse including drone footage.
https://www.youtube.com/watch?v=b3AASKr ... l=MDxmedia
https://www.youtube.com/watch?v=b3AASKr ... l=MDxmedia
Perit hic laetatio.
Re: Astronomy and Space
ISS footage of Hayabusa 2 asteroid sample return capsule reentering the atmosphere.
https://twitter.com/girlandkat/status/1 ... 45859?s=19
A helicopter is currently homing in on its beacon to recover it.
https://twitter.com/girlandkat/status/1 ... 45859?s=19
A helicopter is currently homing in on its beacon to recover it.
- basementer
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Re: Astronomy and Space
I concede. You have a point, and, if we eventually meet, a pint.dyqik wrote: ↑Thu Dec 03, 2020 9:27 pmTrue, that's definitely useful. But I doubt this will make it into undergraduate physics lectures in the way that Tacoma Narrows illustrates driven resonant systems.basementer wrote: ↑Thu Dec 03, 2020 7:14 pmBoth of them document the sequence in which components successively fail. It's not the sort of experiment that one can ethically carry out at this scale so having footage of the collapse is going to be valuable.
Money is just a substitute for luck anyway. - Tom Siddell
Re: Astronomy and Space
It's an X Space rocket
My avatar was a scientific result that was later found to be 'mistaken' - I rarely claim to be 100% correct
ETA 5/8/20: I've been advised that the result was correct, it was the initial interpretation that needed to be withdrawn
Meta? I'd say so!
ETA 5/8/20: I've been advised that the result was correct, it was the initial interpretation that needed to be withdrawn
Meta? I'd say so!