/sci/ - Science & Math

bumping with the Hoag Galaxy, a ring galaxy seen face on with, coincidentally, another ring galaxy visible behind it.

>>5517084
> That means that if I manage to put the exact same neural network, etc of my 3 years old daughter in a pc, after 30 years my 33 years old daughter and the 33 years old computer will be the same? Will have the same memories, same functions, same everything?

Nope. Your daughter is subject to the environment whereas the computer isn't. Take this for example, imagine your daughter (first lets assume purely for this exercise, she doesn't receive electrical impulses from vital organs thus not needing to eat or drink, and she can still survive etc), sitting in the same room for 30 years, no contact with another being, stuck with the past memories for 30 years, unable to move, all 5 senses pretty much unusable. Not a chance that they will be the same after 30 years.

Not even twins will be the same after 30 years, as even twins are subject to varying environments with the multitude of external influences shaping their condition.

Hoag's object, ring galaxy. Old yellow stars inside, young blue stars outside. Nothing inbetween.

What's cool? There's a ring galaxy that's visible through Hoag's object, in the background.

Almost forgot to ask, why did the mods resticky the /sci/ guide? Did they finally get back their reason?

what if shadows aren't the caused by objects

but objects are caused by shadows

I have like 100 more, but I guess I will stop since nobody cares

Why does dark matter have to be elementary particles of some kind? Why not things from boulder size to planetary? Or, on a galactic scale, would such objects just be "dust" anyway and, if they existed, be visible through the obscuration they cause. It just seems to me that cold, dark ordinary matter could fit the bill just as well as anything else.

>>2792580

Erm, disregard that last statement.

Any Astronomyfags here today?

What's a regular day like for the life of an astronomer?

Hoag's Object here, y'all are pussies, especially you, Sombrero. You see my shape? That's your fucking ass after I shove the Milky Way a million light years up it. Fuck off.

Universe Sandbox Thread.

Dont know what it is? Google that shit

>>1750575
This is basically the reason why you get formations like this.

Upon first glance it seems as if maybe all of the matter on the inside has 'fallen into' the black hole. However, what has actually occurred is that two galaxies collided, with their super-massive black holes coming within close proximity, blasting most of the stars in this galaxy into a stable orbit slightly farther away from it.

This is the same force which creates the arms of a spiral galaxy, and indeed all of the wonderful shapes common to galaxies.

>>1738304
It's a matter of contrast.

You can't see the milky way on Earth during the day, everything else is too bright.

Likewise in space, you can't see the milky way if you've got sunlight bouncing off everything else drowning out the view.

Here, have a ring galaxy.

name that galaxy round 2!

I'm ending with this.

Hoag's object.

I hope you enjoy what I posted.