;-)
Are some confusing math with science here?
Besides: "Mathematics" is of no use, it is also not logical, if e.g. the physical quantities are not understood in their complexity;-) Or nonsense is made to physical quantities;-)
... there are people who stretch or crumple coordinate systems and THEN add, for example, the path of a "photon" as the shortest way through this crumpled "phenomenon"-))
Are some confusing math with science here?
Besides: "Mathematics" is of no use, it is also not logical, if e.g. the physical quantities are not understood in their complexity;-) Or nonsense is made to physical quantities;-)
... there are people who stretch or crumple coordinate systems and THEN add, for example, the path of a "photon" as the shortest way through this crumpled "phenomenon"-))
More recent views
The black hole is known as Sagittarius A* or Sgr A* and is 4.2 million times more massive than our sun. The supermassive hole and its enormous gravitational field governs the orbits of stars at the center of the Milky Way. Reinhard Genzel and Andrea Ghez earned the 2020 Nobel prize for physics for its discovery. There are several types of black holes, and scientists believe the supermassive ones may be connected to the formation of galaxies, as they often exist at the center of the massive star systems – but it’s still not clear exactly how, or which form first.
From a CNN report concerning a Japanese 15 year study on the earth position and movement.
The other more recent study on movement showed that something is missing. The only current solution is to assume that stuff is there that explains the discrepancy.
Yet some laypeople seem to think that all the specialists think all theories are rock solid. Then things come along such as Einstein is wrong because he predicts singularities. There is a far simpler solution to that - they can't exist so some few dream up worm holes etc. And so it goes on.
Even Oblers' paradox has now kicked up a theory indicating other reasons for it. That paradox doesn't just apply to light.
LOL I blame outfits such as CNN for some of the issues in this sort of area but there are other aspects that crop up. Funding is one of them. How and why figure it out yourself,
The black hole is known as Sagittarius A* or Sgr A* and is 4.2 million times more massive than our sun. The supermassive hole and its enormous gravitational field governs the orbits of stars at the center of the Milky Way. Reinhard Genzel and Andrea Ghez earned the 2020 Nobel prize for physics for its discovery. There are several types of black holes, and scientists believe the supermassive ones may be connected to the formation of galaxies, as they often exist at the center of the massive star systems – but it’s still not clear exactly how, or which form first.
From a CNN report concerning a Japanese 15 year study on the earth position and movement.
The other more recent study on movement showed that something is missing. The only current solution is to assume that stuff is there that explains the discrepancy.
Yet some laypeople seem to think that all the specialists think all theories are rock solid. Then things come along such as Einstein is wrong because he predicts singularities. There is a far simpler solution to that - they can't exist so some few dream up worm holes etc. And so it goes on.
Even Oblers' paradox has now kicked up a theory indicating other reasons for it. That paradox doesn't just apply to light.
LOL I blame outfits such as CNN for some of the issues in this sort of area but there are other aspects that crop up. Funding is one of them. How and why figure it out yourself,
@cumbb, I have made a mature sensible decision to ignore your insane ramblings.
I would much rather discuss my attempted fix to a Cambridge Audio P500 Power Amplifier with my learned pre-amplifier friend Bonsai.
I am wondering if replacing the power fuses will fix this wretched thing?
What do you think? Will it blow up my Speakers if I plug it all in? 😀
;-)
Aside: your P500 sounds horrible. Nothing to listen music)-;
The methodical errors seem to haunt you;-)
Aside: your P500 sounds horrible. Nothing to listen music)-;
The methodical errors seem to haunt you;-)
I am generally considered competent in plugging gadgets together and getting a working result. This is what system Engineers do.
Alas this horror has defeated me.
The troubles go deeper than a couple of broken 4A Slow Blow fuses!
Only Good News is I discover that "The Essential Leonard Cohen" is a double album!
What Joy! First We Take Manhattan. I leave the rest to you. 🙂
Alas this horror has defeated me.
The troubles go deeper than a couple of broken 4A Slow Blow fuses!
Only Good News is I discover that "The Essential Leonard Cohen" is a double album!
What Joy! First We Take Manhattan. I leave the rest to you. 🙂
The Titius-Bode relation is now regarded as a mathematical coincidence rather than an actual physical law. However, planetary orbits do get perturbed.
All is not simple in our outer solar system where Pluto's orbit crosses that of Neptune's, but in such a way that the two bodies don't collide.
It's all down to a 3:2 orbital resonance that Steve will happily explain, since he likes orbital mechanics! 😉
Attachments
Transistors gone i think. May be transformed blown. Whats up with the space littely have space for bookshelf in there.
I had one of those things several years back, with the matching C500 preamp. Were a bargain basement thing from those lovely people at Richer Sounds, in their Brighton store. I think I sold them for more than I originally paid.
Re the gravity thing... I thought that was caused by apples falling off trees?
There is nothing surprising in the fact that astronomers are not exactly certain how galaxies formed, but they know that they formed early in the history of the Universe and see evidence of galactic evolution over time.
Recent work on the role of dark matter* in the early Universe has led to the hierarchical or bottom-up model of galaxy formation gaining wide acceptance. https://www.space.com/how-galaxies-form
*Whatever dark matter may be, you say! 😉
As to the role played by supermassive black holes in galaxy formation - no surprise again - astronomers just don't know! 😱
My elder son has just brought over the Denon Professional rack mount CD player I bought for him just a few years ago.
It's as dead as a dodo, and I can confirm that there are "no user serviceable parts inside"!
I am sorry to say that I failed the sweatshirt challenge. 🙁
I did, however, manage to retrieve Judas Priest's Defenders of the Faith CD from the bowels of the mechanism, so all is not lost!
Hi there gcsa - the voice of reason! 😀
Newton's genius lay in realising that gravity is a mutual * interaction between any two objects in the universe.
To the best of my knowledge no one had come up with that concept prior to Newton - please correct me if I'm wrong.
* Not only does the Earth attract the apple, but the apple attracts the Earth with an equal and opposite force. When a 0.1 kg apple falls from a tree, the Earth attracts it downwards with a force of almost one newton. At the same time, the apple attracts the Earth upwards with a force of almost 1 N.
Actually that's what probably killed the CD player.
Only kidding, I'm a big fan of JP.
Indeed it is a Cambridge Audio P500/C500 Power/Pre Combo. Alas I think it is, as they say in Germany, KAPUT (Broken)!
Not even the front power LED came on when plugged in!
It has blown the new trial power rail slow blow 4A fuses immediately, even though correctly wired... well, at least I tried.
It was originally wired to some dubious parallel MTM speakers and playing horrible "garage" music when it popped, because I found the CD in the matching CD player's tray.
I suppose the low 4 ohm impedance killed the output stage.
Let that be a lesson to us all! Speaker impedance matters!
Sorry for the off-topic. Hope this will get us back on track!
https://en.wikipedia.org/wiki/OJ_287
Best regards from Steve in Southsea, UK.
Blimey Southsea. That takes me back to the late 80s living there for a while when working for IBM at their Havant plant at the top of Hayling Island. Also Hayling Island itself and a spell in Drayton. Great times!
Shame about the P500, as iirc it was a good sounding setup for me. I think the main reason I moved it on was because I wanted to join the heady heights of remote control lol.
Just forgot to say, the irony is that I've gone totally back to non-remote control, and don't really miss it. How things come around, eh?
Actually, Cambridge Audio were quite big on remote control. @gcsa.
I happen to own a couple!
Not that I use them either! Simpler to get up and change a CD or adjust the volume control, IMO. Speakers are a modified Monitor Audio R300-MD design of mine.
We are rockin' at chez system7 as usual. Fleetwood Mac, Rumours. An excellent disk which was playin' at our Portsmouth HMV Store whilst I perused The 1975 disks.
As everybody knows, I like The 1975. Incidentally filed under N. Makes no sense to me, but who am I to argue?😀
I happen to own a couple!
Not that I use them either! Simpler to get up and change a CD or adjust the volume control, IMO. Speakers are a modified Monitor Audio R300-MD design of mine.
We are rockin' at chez system7 as usual. Fleetwood Mac, Rumours. An excellent disk which was playin' at our Portsmouth HMV Store whilst I perused The 1975 disks.
As everybody knows, I like The 1975. Incidentally filed under N. Makes no sense to me, but who am I to argue?😀
Here's a video regarding system OJ287 and the Spitzer Space Telescope's final act:
More information here: https://www.spitzer.caltech.edu/new...eals-the-precise-timing-of-a-black-hole-dance