scientificamerican.com

Reverendender, 4 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.

Bluetreefrog, 26 dni temu do astronomy w Dark Matter Black Holes Could Fly through the Solar System Once a Decade

The book, Seven Eves is about one of these hitting the moon.

Davel23, 26 dni temu

The cause of the incident is never specified in the book.

thebardingreen, 26 dni temu

The book Earth by David Brin is about one of these hitting the Earth

onlinepersona, 27 dni temu do astronomy w Dark Matter Black Holes Could Fly through the Solar System Once a Decade

Would a regular asteroid be able to wobble the earth as described in this article? Or is it just black holes that should do so?

I seem to remember reading that primordial black holes weren’t yet a proven phenomenon and I have trouble imagining them myself. Wouldn’t they have hawking radiation too which we would be able to detect?

Anti Commercial-AI license

ProfessorOwl_PhD, 2 miesiące temu do gaming w Dungeons & Dragons Is Shedding ‘Race’ in Gaming. Other Games, and Gamers, Should Follow

It’s ridiculous that the author thinks they can tell other games to follow D&D when they’ve only looked at D&D. Not only does this update lag well behind most TTRPGs, it doesn’t actually bring it up to date - species has its own issue of being inaccurate in a game rampant with half-lineages, which is why other games moved to terms like lineage and ancestry instead. These are discussions people have had because of the problems of D&D, it hasn’t been a trailblazer since the release of 3.0.

StaySquared, 2 miesiące temu do gaming w Dungeons & Dragons Is Shedding ‘Race’ in Gaming. Other Games, and Gamers, Should Follow

Ah… no identity just all copy pasta.

Shdwdrgn, 4 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, 4 miesiące temu do astronomy w How Many Holes Does the Universe Have?

A thousand holes in Blackburn, Lancashire.

ringwraithfish, 7 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.

Lemming6969, 25 dni temu do astronomy w Dark Matter Black Holes Could Fly through the Solar System Once a Decade

What if dark matter is some form of black hole or exotic ultra dense material made entirely out of the missing antimatter, which for whatever reason doesn’t otherwise interact with electromagnetism? 2 birds, 1 stone.