Fastfaxr t1_j55y2r1 wrote on January 20, 2023 at 5:03 PM

Reply to comment by its-octopeople in if our sun is the size of an atom, how big would UY Scuti be in comparison? by Major-Apricot69

(I actually used 10 nm for width of Hydrogen, much larger than your unit)

Rajvagli t1_j55xz8w wrote on January 20, 2023 at 5:03 PM

Reply to comment by Kitchen_Music1302 in Ancient humans and their early depictions of the universe: “It is no exaggeration to say that astronomy has existed as an exact science for more than five millennia,” writes the late science historian John North. by clayt6

Fair point, I guess I’m not familiar with family/tribal roles enough to know one way or another. To me, poor eyesight is a negative trait, and I would expect back then, it would be harder to find a mate with such a weakness. Therefor, limiting the genetic pool of that individual.

its-octopeople t1_j55uwbh wrote on January 20, 2023 at 4:44 PM

Reply to comment by King_BowserKoopa in if our sun is the size of an atom, how big would UY Scuti be in comparison? by Major-Apricot69

I worked it out to 84nm (diameter of H ~ 50×10^-12 m, multiplied by 1708), about the thickness of a bacterial flagellum. Much smaller than this commenter's result. I suspect something went wrong with their odd choice of units.

Kitchen_Music1302 t1_j55uu78 wrote on January 20, 2023 at 4:43 PM

Reply to comment by Rajvagli in Ancient humans and their early depictions of the universe: “It is no exaggeration to say that astronomy has existed as an exact science for more than five millennia,” writes the late science historian John North. by clayt6

I'm sure you would I just wouldn't think to the degree that you get kicked out of a village of die of starvation. If that is true though, there were a lot of roles for people to have in a village that didn't require good vision. Fishing, helping with child rearing or gathering wood for example

Rajvagli t1_j55ubet wrote on January 20, 2023 at 4:40 PM

Reply to comment by who_said_I_am_an_emu in Ancient humans and their early depictions of the universe: “It is no exaggeration to say that astronomy has existed as an exact science for more than five millennia,” writes the late science historian John North. by clayt6

I would ask you to rewrite your 2nd sentence and try to have it make sense. Hard example to follow, doesn’t give me any insight into how NS works.

Rajvagli t1_j55tjtx wrote on January 20, 2023 at 4:35 PM

Reply to comment by Kitchen_Music1302 in Ancient humans and their early depictions of the universe: “It is no exaggeration to say that astronomy has existed as an exact science for more than five millennia,” writes the late science historian John North. by clayt6

I’m not so sure about that, I had -4 vision and couldn’t see anything in focus farther than a foot away. Are you saying that I wouldn’t have more difficulty gathering and foraging than someone with better vision?

Rajvagli t1_j55t7py wrote on January 20, 2023 at 4:33 PM

Reply to comment by Dmeechropher in Ancient humans and their early depictions of the universe: “It is no exaggeration to say that astronomy has existed as an exact science for more than five millennia,” writes the late science historian John North. by clayt6

But those that didn’t have an increase visual acuity would have been worse off than those that did right? Potentially leading to their genetic lines ending.

Asking to learn.

[deleted] t1_j55svqm wrote on January 20, 2023 at 4:31 PM

Reply to comment by MarcusCryptus in Ancient humans and their early depictions of the universe: “It is no exaggeration to say that astronomy has existed as an exact science for more than five millennia,” writes the late science historian John North. by clayt6

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[deleted] t1_j55stpf wrote on January 20, 2023 at 4:31 PM

Reply to comment by PandaEven3982 in ClearSpace raises $29 million ahead of first debris removal mission by sillychillly

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King_BowserKoopa t1_j55sjzn wrote on January 20, 2023 at 4:29 PM

Reply to comment by Fastfaxr in if our sun is the size of an atom, how big would UY Scuti be in comparison? by Major-Apricot69

Really? I’m surprised it’s that big. I knew UY Scuti was several times larger than the sun, but if an atom is that small… Neat!

PandaEven3982 t1_j55siqs wrote on January 20, 2023 at 4:29 PM

Reply to comment by digitaldigdug in ClearSpace raises $29 million ahead of first debris removal mission by sillychillly

Ever heard of anything called "High Frontier?"

DomesticApe23 OP t1_j55sg3u wrote on January 20, 2023 at 4:28 PM

Reply to comment by xSwyftx in Can someone recommend a good night sky app and a good resource to be able to find C/2022 E3 (ZTF)? by DomesticApe23

Thanks this is perfect.

LaidBackLeopard t1_j55scdw wrote on January 20, 2023 at 4:27 PM

Reply to comment by Fastfaxr in if our sun is the size of an atom, how big would UY Scuti be in comparison? by Major-Apricot69

Not sure where to start with the wrongness here. In answer to OP, the size of a molecule. Ask a vague question...

Irishknife t1_j55rwuz wrote on January 20, 2023 at 4:25 PM

Reply to if our sun is the size of an atom, how big would UY Scuti be in comparison? by Major-Apricot69

quickly googling. UY Scuti, if placed in our solar system would be be larger than the orbit of Jupiter.

scaling it down to a better example. if the sun was a regulation basketball, UY scuti would roughly be a quarter of a mile in diameter.

its-octopeople t1_j55rq7h wrote on January 20, 2023 at 4:24 PM

Reply to comment by Fastfaxr in if our sun is the size of an atom, how big would UY Scuti be in comparison? by Major-Apricot69

>Diameter of hydrogen atom: 6.479 x 10^-14 nautical miles.

In football pitches please

[deleted] t1_j55rppn wrote on January 20, 2023 at 4:23 PM

Reply to comment by Fastfaxr in if our sun is the size of an atom, how big would UY Scuti be in comparison? by Major-Apricot69

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Fastfaxr t1_j55r9zb wrote on January 20, 2023 at 4:21 PM

Reply to if our sun is the size of an atom, how big would UY Scuti be in comparison? by Major-Apricot69

Diameter os UY scuti: 2.377 billion km

Diameter of sun: 1.393 million km

Ratio: 1706:1

Diameter of hydrogen atom: 6.479 x 10^-14 nautical miles.

Diameter of scaled UY scuti: 17.23 micro meters. About one third the width of a sheet of paper

Dyerssorrow t1_j55qash wrote on January 20, 2023 at 4:15 PM

Reply to comment by Mkwdr in Ancient humans and their early depictions of the universe: “It is no exaggeration to say that astronomy has existed as an exact science for more than five millennia,” writes the late science historian John North. by clayt6

It would have been awesome if the Dogon had a hard drive to hand over to Walter.

[deleted] t1_j55q71f wrote on January 20, 2023 at 4:14 PM

Reply to if our sun is the size of an atom, how big would UY Scuti be in comparison? by Major-Apricot69

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digitaldigdug t1_j55q0pr wrote on January 20, 2023 at 4:13 PM

Reply to comment by PandaEven3982 in ClearSpace raises $29 million ahead of first debris removal mission by sillychillly

That sounds like a bad alien horror movie beginning

PandaEven3982 t1_j55pk5r wrote on January 20, 2023 at 4:10 PM

Reply to comment by zeeblecroid in ClearSpace raises $29 million ahead of first debris removal mission by sillychillly

Don't need a lot to keep it orbital. Keep it in the same orbit, junk should eventually show up in a crossing orbit. If you loft it correctly, just gonna need little gas jets (maybe peroxide). Eventually the the thing fills and the last fuel is used to park it at a Lagrange point send a refueler with more peroxide.

edit: Or hell, park the whole unit.