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These supernova-generating black holes are atomic scale (Schwartzchild radius of 15pm to 15nm), yet they carry the momentum of a large asteroid. If one of these
by ttul 2mo ago
These supernova-generating black holes are atomic scale (Schwartzchild radius of 15pm to 15nm), yet they carry the momentum of a large asteroid. If one of these hit the earth, they would cause a life-ending apocalypse like the event that ended the dinosaurs. The fact that this has not happened yet is encouraging.
- YetAnotherNick 2mo agoThe drag is insufficient to stop it and it would go right through the earth without stopping. It would cause earthquake of 4 magnitude, which is barely detectable. [1]: https://arxiv.org/pdf/1203.3806 https://arxiv.org/pdf/1203.3806
- shagie 2mo agoCan one detect passage of small black hole through the Earth? - https://arxiv.org/abs/0710.3438v1 https://arxiv.org/abs/0710.3438v1 A physics stack exchange answer about it: https://physics.stackexchange.com/a/55184 https://physics.stackexchange.com/a/55184 The most relevant part: > The total energy created by a PBH roughly equals the energy produced by the detonation of one tonne of TNT, but this energy is the total energy it deposits along its path through the Earths diameter, not the energy it produces on impact. So don’t expect a magnificent explosion, we’d be lucky to see a spark as it hits the ground.
- ttul 2mo agoAlways the bringer of facts to rain on my factless fun. Thank you.
- shagie 2mo agoAnd in remembering another paper... it wasn't about a black hole but rather quark matter... Two Seismic Events with the Properties for the Passage of Strange Quark Matter Through the Earth - http://www.geology.smu.edu/~dpa-www/sqm/pdf/sqm_lanl.pdf http://www.geology.smu.edu/~dpa-www/sqm/pdf/sqm_lanl.pdf It looks at pairs of seismic events that trace line through the earth and are timed correctly. > Two sets of reports were found in the 1993 database that fit all the criteria for a linear source. The model and residuals (observed minus predicted arrival times) for the first event are given in Table 1. The RMS residual is 0.73 sec. This RMS value would indicate a good fit for a well-located earthquake. A BBC article about the paper: http://news.bbc.co.uk/2/hi/science/nature/2502755.stm http://news.bbc.co.uk/2/hi/science/nature/2502755.stm
- cyberax 2mo agoNot really? They would likely pass through Earth completely invisibly.
- choboswaggings 2mo agoNot sure if I share the encouraging nature of this thought! I assume they are also impossible to detect for us before impact.