scientificamerican.com

Shdwdrgn, 3 miesiące temu do astronomy w How Many Holes Does the Universe Have?

I thought the torus shape was the accepted theory? Guess I haven’t been keeping up on this.

Near the bottom of the article they mention that if the universe wasn’t flat, we would see multiple copies of the universe in the sky. I’m not sure that is exactly true? Given the speed at which the universe is expanding, especially during the early period after the big bang, it seems reasonable that the light from most stars wouldn’t have had a chance to loop back around yet. Even the light from the earliest stars is just reaching us, so I don’t know why they think it would have had time to loop back around multiple times, unless there’s something I’m missing?

And nothing in the article really touched on the “holes” mentioned in the title. Are they referring to the center of a torus, which isn’t really a hole that we could observe? I don’t get it.

maculata, 3 miesiące temu do astronomy w How Many Holes Does the Universe Have?

A thousand holes in Blackburn, Lancashire.

Reverendender, 3 miesiące temu do astronomy w How Many Holes Does the Universe Have?

I found several of the ideas in this article lacked sufficient explanation, if there even was any, for laypeople to understand.

Haagel, 3 miesiące temu do astronomy w How Many Holes Does the Universe Have?

Kinky

Diplomjodler3, 3 miesiące temu

Can’t wait for the role 34 content.

ringwraithfish, 6 miesięcy temu do astronomy w Most Astronauts Get ‘Space Headaches.’ Scientists Want to Know Why

If Constellation on Apple TV is right, then it’s an indication that the person has become quantum entangled with their alternative self in another universe.

Good show btw if you are looking for something more psychological with a sci-fi background.

prole, 6 miesięcy temu do astronomy w Most Astronauts Get ‘Space Headaches.’ Scientists Want to Know Why

First symptom of space madness

Sekrayray, 6 miesięcy temu do astronomy w Most Astronauts Get ‘Space Headaches.’ Scientists Want to Know Why

They mention this in the article, but the physiology would suggest this is related to CSF/blood pooling in low G.

Taking it a step further, I bet this has a similar mechanism to IIH or the high pressure headaches you get with obstructive hydrocephalus. CSF is supposed to drain down via a relatively passive system. Without G to regulate this I can envision that you’d essentially develop the same physiology as someone with IIH (too much CSF).

Really interesting. A good example of how we have no idea what insane health things we are going to experience with space travel, but also how space travel may shed insight on treatments for other conditions with similar mechanisms we experience in a gravity well.

ieatpwns, 6 miesięcy temu

Haven’t this is interesting because I’ve always wondered how evolution would happen when we finally colonize in low g environs. Maybe char was on to something when he said our souls are weighed down by gravity.

Cornucopiaofplenty, 6 miesięcy temu do astronomy w Most Astronauts Get ‘Space Headaches.’ Scientists Want to Know Why

There are people that don’t get headaches?

Jakdracula, 6 miesięcy temu

I rarely get headaches. Haven’t really ever gotten any headaches throughout my life.

EddoWagt, 6 miesięcy temu

Same, maybe 1 or 2 really mild ones, that were just kind of annoying for a minute or so

Leg, 6 miesięcy temu

Here I am getting migraines so bad I contemplate self- terminating on a monthly basis. Life can be cruel.

EddoWagt, 6 miesięcy temu

My mom gets that as well, seems awful

aStonedSanta, 6 miesięcy temu

I get migraines or just started too. But never get head aches. Migraines for me just make light too overwhelming to look at but it isn’t pain. It’s almost confusion it causes me.

exocrinous, 6 miesięcy temu

I’ve never gotten a headache in space.

fossilesque, 6 miesięcy temu

Bro, I don’t even need to go anywhere. In fact, I’d rather be in a dark room lmao.

wischi, 6 miesięcy temu do astronomy w Most Astronauts Get ‘Space Headaches.’ Scientists Want to Know Why

Too much blood in their head because of zero g?

1024_Kibibytes, 6 miesięcy temu

The article suggests something similar:

“As gravity loosens its grip, blood, lymph and cerebrospinal fluid drift from their usual locations and begin to exert pressure elsewhere.”