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How to Create a Black Hole Out of Thin Air
- jzombie 3y ago"Thin air" is a weird metaphor for something that happens in space, where there is no air.
- muttled 3y agoParticles pop in and out of existence everywhere in space don't they though? At least according to a space documentary I watched last night. Not trying to be pedantic over if a gas particle present for a fraction of an instant counts as "thin air," just excited that something I learned last night came up.
- Escapade5160 3y agoTrue. They could have said "out of nothing" and been closer to being correct while keeping the same meaning.
- LargoLasskhyfv 3y agoShrinkflation. Now even thinner!
- mock-possum 3y ago> Dr. Natarajan and her colleagues propose that UHZ-1, and so perhaps many supermassive black holes, began as primordial clouds. These clouds could have collapsed into kernels that were precociously heavy — and were sufficient to jump-start the growth of overmassive black hole galaxies. They are another reminder that the universe we see is governed by the invisible geometry of darkness. That’s cool but - what mechanism causes the primordial gas cloud to collapse? Wouldn’t a gas cloud be characterized by matter spread very thin, as opposed to a collapsing star, characterized by extraordinarily concentrated matter packed very tightly? The path from super dense matter to black hole makes sense, the dense thing gets denser - what’s the path from super spread out thing to black hole?
- simne 3y ago> what mechanism causes the primordial gas cloud to collapse? Gravitation. As I understand, all current science consider it fundamental force of nature. So, even atom have (sure, tiny) gravitational attraction, and huge gas cloud have huge total gravitational mass, and when long time unaffected by third party sources, slowly become more compact, until collapse to solid matter and eventually to BH.