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Post by user211 on Dec 20, 2020 17:20:34 GMT
Yes Jerry just looking through the binoculars. Saturn's rings look to be dancing up and down the planet which I assume is just due to atmospheric distortion. Mobile shot on max zoom. Dreadful but hey!  |
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Post by jandl100 on Dec 20, 2020 17:28:27 GMT
Hey, you got them both. Amazing!!
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Post by user211 on Dec 20, 2020 18:36:17 GMT
Gone now but yeah, just about. Aliens close by? I severely doubt it but hey...  |
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Post by jandl100 on Dec 20, 2020 18:56:56 GMT
Ffs, it's the detection of radio signals created by aurora in the exoplanet's atmosphere.
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Post by user211 on Dec 20, 2020 19:30:59 GMT
Have you told him?  |
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Post by jandl100 on Dec 23, 2020 6:09:11 GMT
The Pleiades, or "Seven Sisters", is a star cluster easily seen with the naked eye. Stories and myths about the seven sisters exist from many parts of the world and go back to ancient times. But there are only 6 that can be seen, and many of the global myths tell why the 7th sister has gone missing. Recent satellite based observations of the star cluster show that due to the movement of the individual stars, 2 of them are now so close together that they appear to the naked eye as a single star. 100,000 years ago they would have been seen separately and there would indeed have been 7 sisters visible. So is the story of the 7 sisters the world's oldest myth, dating back 100,000 years? phys.org/news/2020-12-world-oldest-story-astronomers-global.html?utm_source=nwletter&utm_medium=email&utm_campaign=daily-nwletter |
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Post by MartinT on Dec 23, 2020 11:42:51 GMT
they appear to the naked as a single star. and if I'm wearing clothes...? |
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Post by jandl100 on Dec 23, 2020 11:59:57 GMT
Ah, I think I'll correct that typo!
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Post by jandl100 on Jan 13, 2021 10:39:59 GMT
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Post by Slinger on Jan 13, 2021 10:51:46 GMT
Isn't it odd, that in today's technologically advanced times, when we want to describe something as accurate we still say it runs "like clockwork"? How many kids even know what "clockwork" actually is?
Now I'm going to sit quietly and try to get my head around "78 million solar masses."
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Post by MartinT on Jan 13, 2021 11:49:16 GMT
Now I'm going to sit quietly and try to get my head around "78 million solar masses." It took me a while  |
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Post by jandl100 on Jan 15, 2021 11:03:07 GMT
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Post by MartinT on Jan 15, 2021 12:06:09 GMT
I wonder what kind of strange seasonal/tidal effects they would have on that world.
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Post by jandl100 on Jan 19, 2021 5:31:44 GMT
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Post by jandl100 on Jan 27, 2021 19:13:39 GMT
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Post by Dave on Jan 28, 2021 15:28:55 GMT
Pale blue dot... 😉
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Post by jandl100 on Feb 3, 2021 3:39:27 GMT
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Post by jandl100 on Feb 3, 2021 18:55:28 GMT
Way beyond my pay grade... Uniting the two fundamental theories of physics; quantum mechanics and general relativity. Both are jaw droppingly successful in their own domains of the atomically tiny and astronomically large, but getting them to meet in the middle is one of the great challenges of modern physics. Enter a pair of Polish physicists. Apparently, solutions to the equations of general relativity always provide two sets of answers, one relevant to a universe where the speed of light is the maximum obtainable, the other relevant to a universe where the speed of light is the minimum obtainable. The latter are discarded as meaningless. The Polish pair decided not to throw away half of the perfectly "correct" solutions and to follow through on the implications. They might just have found a way through to the deeper understanding that must be there, uniting quantum and relativity theory, where quantum mechanics is a logical outcome of general relativity www.wired.co.uk/article/quantum-theory-speed-light-dragan |
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Post by MartinT on Feb 3, 2021 19:25:06 GMT
Really fascinating, but why are they so against the idea of any object travelling faster than light? I thought tachyons had already caused physicists quite a few headaches on that score.
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Post by jandl100 on Feb 3, 2021 19:44:51 GMT
It's a sort of assault on the fundamentalness of quantum mechanics that many physicists adhere to.
I don't think they are keen on quantum theory being subsidiary to, and resulting from, relativity. They'd rather it was the other way round.
In the end maybe it will turn out that each is subsidiary to the other!
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