21Sep 2022 by Nigel Fleming No Comments

linkedin post 2021-07-01 04:17:50

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GORGING. “The BH-to-bulge mass ratio was larger at higher redshifts than expected from the local BH–bulge mass relation. This eventually implies that BHs were accreting more gas and thus, growing faster than the corresponding bulges at high redshifts than at lower ones.” (BH = black hole). https://lnkd.in/d9JV8md View in LinkedIn
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21Sep 2022 by Nigel Fleming No Comments

linkedin post 2021-07-01 04:15:57

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WOBBLY DISCS. “In a cosmological context, the expected rapid inflows can lead to more violent ‘stream fed’ disc instabilities, particularly at high redshift, which may drive BH feeding at high rates, and more dramatic morphological/dynamical transformation.” (BH = black hole). https://lnkd.in/d9JV8md View in LinkedIn
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21Sep 2022 by Nigel Fleming No Comments
linkedin post 2021-07-01 04:04:00

linkedin post 2021-07-01 04:04:00

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ONCE A MONTH MERGERS. “With this new discovery of neutron star-black hole mergers outside our galaxy, we have found the missing type of binary. We can finally begin to understand how many of these systems exist, how often they merge, and why we have not yet seen examples in the Milky Way.” The researchers believe that one of these violent mergers occurs about once a month within a billion light-years of Earth.“ https://www.cnn.com/2021/06/29/world/black-hole-neutron-star-merger-scn/index.html View in LinkedIn
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21Sep 2022 by Nigel Fleming No Comments

linkedin post 2021-06-30 04:07:50

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EXAPTATION. “Evolution works best when it does not need to generate a whole new active site from scratch. Instead, evolution can generate a new enzyme from one that is “close”, that is, shares elements of mechanism or machinery from which the new activity can be built. Nature co-opts old machinery to do new jobs.” https://lnkd.in/d2-p85M View in LinkedIn
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21Sep 2022 by Nigel Fleming No Comments
linkedin post 2021-07-04 12:05:06

linkedin post 2021-07-04 12:05:06

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DUAL CHANGES. “Another example of how a new language changes a language that preceded it is the way the emergence of abstract science affected mathematics with scientists developing new kinds of mathematics to describe nature. Descartes’s analytic geometry and Newton’s differential calculus being two examples of this among many other examples.” https://link.springer.com/chapter/10.1007/978-3-030-59177-9_13 View in LinkedIn
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21Sep 2022 by Nigel Fleming No Comments

linkedin post 2021-07-02 04:08:32

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SO ENDS this section on black holes, one of the most extreme and fascinating phenomena in cosmology. Obviously, this was but a nibble at the subject, which is enormous and is covered by thousands of papers. Now we transition into how black holes give birth to white holes, their lesser-known offspring. https://lnkd.in/d9JV8md View in LinkedIn
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21Sep 2022 by Nigel Fleming No Comments
linkedin post 2021-07-04 12:04:12

linkedin post 2021-07-04 12:04:12

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CHANGING MEDIUM. “This observation of the effects of phonetic writing supports the notion that mathematics will change in the age of information, i.e. the age of computers and the Internet. Mathematics is, in fact, changing as is reported in the Wikipedia article Computer-assisted proof.” https://link.springer.com/chapter/10.1007/978-3-030-59177-9_13 View in LinkedIn
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