linkedin post 2021-07-11 09:09:16

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UNTANGLING THE TRAIT. “The discovery of the genes underlying CI now makes it possible to reconstruct the trait’s evolution at the molecular level and infer the selection pressures acting on CI using the tools of molecular evolution.” (CI = cytoplasmic incompatibility). https://lnkd.in/dXjWp9f View in LinkedIn
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linkedin post 2021-07-12 04:18:40

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CONSEQUENCES. “Almost all of the negative energy associated with Hawking "partners" must then remain inside the white hole, which requires that it propagate along ingoing radial null geodesics. These increase in radius inside the white hole, and converge on the white hole apparent horizon unless they intersect the matter shell first.” https://lnkd.in/dUKnus8 View in LinkedIn
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linkedin post 2021-07-12 04:15:50

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HYPOTHESIS. “An alternative scenario for the evolution of the white hole is that the outflow of negative energy across the horizon lasts only for a limited retarded time, too short for the Ford-Roman bound to be violated, after which mass of the white hole becomes constant at a larger, but still Planck-scale, value until the matter shell emerges.” https://lnkd.in/dUKnus8 View in LinkedIn
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linkedin post 2021-07-12 04:14:33

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QUESTION. “Does the initial outflow of negative energy from the white hole continue for the entire lifetime of the white hole, increasing the mass of the white hole up to the original mass of the black hole when the bouncing shell of matter that formed the black hole emerges and the white hole disappears?” https://lnkd.in/dUKnus8 View in LinkedIn
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linkedin post 2021-07-12 04:11:13

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“PHYSICS is full of opposites. For every action, there’s a reaction; every positive charge has a negative; every magnetic north pole has a south pole. Matter’s opposite number is antimatter. And for black holes, meet white holes. Black holes are notorious objects that suck in everything around them. Famously, not even light can escape their awesome gravity. White holes, in contrast, blow out a constant stream of matter and light – so much so that nothing can enter them.” https://lnkd.in/djSRsBX View in LinkedIn
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linkedin post 2021-07-11 09:28:07

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LIKE GENETICS VS EMBRYOLOGY. “Synthetic biology presents a challenge to traditional accounts of biology: Whereas traditional biology emphasizes the evolvability, variability, and heterogeneity of living organisms, synthetic biology envisions a future of homogeneous, humanly engineered biological systems that may be combined in modular fashion.” https://lnkd.in/dhkrmJx View in LinkedIn
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linkedin post 2021-07-11 09:24:27

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SO ENDS this first of two weekends on the cunning strategy of the bacteria Wolbachia which has enabled it to colonize half of the insect species in the world. The ability of symbionts and parasites to enact sophisticated strategies on their hosts makes one suspect that more than chance is at play, but when nature gambles at such high rates over geological time, even slim probabilities can become realities. It is a game of sheer numbers against the odds of chance. View in LinkedIn
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