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JWST spots giant black holes all over the early universe

quantamagazine.org

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Re: JWST spots giant black holes all over the early universe

#31

Post by vient »

mekkkkkk wrote: post #27
JumpCrisscross wrote: post #22

Earlier quoted context omitted.

Has anyone re-written a classic RTSG with a slower speed of light? Like, Red Alert, but with time dilation.

Wouldn't that be incredibly hard, considering that the players perspective is disconnected from the units? I observe my base and order a group of units to go to some place on the minimap. I see them moving along on their way, and decide to scroll to them. Only to realize that they already arrived and got massacred by the enemy. I go back to my base only to realize that it was destroyed ages ago (in its frame of refer…

In ordinary strategies you already have an assumption of immediate information transfer from unit to player - you see what each unit is seeing. This can be kept so you will see you units moving in real time but as things get further from your units on the map, the older info about them you get.

Re: JWST spots giant black holes all over the early universe

#33

Post by atoav »

andai wrote: post #16
mvdtnz wrote: post #14

I wish stories like this were a more straight forward counting of the interesting facts and relevant input from experts. I don't really need the origin story of the conference this finding was discussed at.

You can ask GPT to rewrite it according to your preference. (Not being facetious: I often ask it for bullet points or "explain like I'm 13.")

"Explain me something, I don't care if it is true, because I wouldn't be able to tell anyways"

Re: JWST spots giant black holes all over the early universe

#34

Post by xwdv »

mekkkkkk wrote: post #27
JumpCrisscross wrote: post #22

Earlier quoted context omitted.

Has anyone re-written a classic RTSG with a slower speed of light? Like, Red Alert, but with time dilation.

Wouldn't that be incredibly hard, considering that the players perspective is disconnected from the units? I observe my base and order a group of units to go to some place on the minimap. I see them moving along on their way, and decide to scroll to them. Only to realize that they already arrived and got massacred by the enemy. I go back to my base only to realize that it was destroyed ages ago (in its frame of refer…

Would be great as an artistic project, maybe not as a game.

Also in time I bet some players would find ways to win reliably, creating a new field of military strategy.

Re: JWST spots giant black holes all over the early universe

#35

Post by JumpCrisscross »

mekkkkkk wrote: post #27
JumpCrisscross wrote: post #22

Earlier quoted context omitted.

Has anyone re-written a classic RTSG with a slower speed of light? Like, Red Alert, but with time dilation.

Wouldn't that be incredibly hard, considering that the players perspective is disconnected from the units? I observe my base and order a group of units to go to some place on the minimap. I see them moving along on their way, and decide to scroll to them. Only to realize that they already arrived and got massacred by the enemy. I go back to my base only to realize that it was destroyed ages ago (in its frame of refer…

You’d have to have a HQ relative to which all dilation is calculated. If done correctly, it could simplify server operations since the need for simultaneity is relaxed.

Re: JWST spots giant black holes all over the early universe

#37

Post by teaearlgraycold »

louislang wrote: post #17
andai wrote: post #16

Earlier quoted context omitted.

You can ask GPT to rewrite it according to your preference. (Not being facetious: I often ask it for bullet points or "explain like I'm 13.")

the problem with GPT is that you're not guaranteed to get something that's _accurate_. I'd definitely prefer some input from an expert over GPT.

English text transformation is a task it’s exceptionally good at. You just need to prompt it to only use the source material you give it for summarization.

Re: JWST spots giant black holes all over the early universe

#38

Post by claytongulick »

Can someone who really knows this stuff clarify my understanding?

I've been given to understand that black holes remain a physics theory that has not been directly observed or proven.

I thought that we had a fair amount of observational evidence that suggests their existence, but no "smoking gun" proof of it, and that these types of "observed a black hole" articles are a little misleading - that in reality, what was observed was much indirect, interpreted data that is consistent with black hole theory, but could also be something else.

Am I off base here?

Re: JWST spots giant black holes all over the early universe

#39

Post by mvdtnz »

ajross wrote: post #19
mvdtnz wrote: post #14

I wish stories like this were a more straight forward counting of the interesting facts and relevant input from experts. I don't really need the origin story of the conference this finding was discussed at.

The stuff you're complaining about seems limited to a little bit of POV text in the first seven (!) sentences of a rather long article. Does it really bug you so much that they gave you just a tiny taste of the perspective of a woman who works on this stuff? That seems a bit much. This kind of text is everywhere in science journalism.

> Does it really bug you so much that they gave you just a tiny taste of the perspective of a woman who works on this stuff?

Well, yes, that's why I wrote my post.

> This kind of text is everywhere in science journalism.

Indeed.

Re: JWST spots giant black holes all over the early universe

#40

Post by xigency »

ajross wrote: post #20
whiw wrote: post #2

> Galactic spectra, which JWST started to send back in earnest at the end of last year, are useful for two reasons. > First, they let astronomers nail down the galaxy’s age. The infrared light JWST collects is reddened, or redshifted, meaning that as it traverses the cosmos, its wavelengths are stretched by the expansion of space. The extent of that redshift lets astronomers determine a galaxy’s distance, and therefo…

> Won't a photon climbing out of a huge gravity well have a huge redshift, thus confounding estimates of distance from us and estimated age? Of course it will. It will also have a redshift related to the expansion of the space it's been travelling through. Both of those corrections are absolutely part of the model. It's not nearly as simple as "Astronomers forgot about General Relativity!". But I guess it's true (to…

> Both of those corrections are absolutely part of the model

Is there a way to gain a better understanding of how these parameters are modeled and what the scientific evidence is for the various phenomena in astrophysics? It's somewhat perplexing to me as an outsider of the field to understand how things like mass and distance of stars and planetary bodies are determined when 1) the scales are so outside of conventional experience 2) observation is limited to 2D imaging of the night sky 3) the observations in general are not consistent with our knowledge of gravity and relativity without adding hidden parameters.

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