linkedin post 2020-12-29 06:01:11

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NEURAL CONTROL. “Accumulating evidence now indicates clearly that shell growth and patterning are under neural control and that shell growth and pigmentation is a neurosecretory phenomenon. Most of this evidence has been gained by detailed studies of the mantle, a tongue-like protrusion of the mollusk that wraps around the edge of the shell and deposits new shell material and pigment at the shell’s growing edge.” https://lnkd.in/d7D7yyC View in LinkedIn
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linkedin post 2020-12-29 06:00:05

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WOLFRAM INSPIRATION. “Bard Ermentrout, John Campbell, and George Oster, (1986). Inspired by Wolfram and cellular automata, this is a classic. The neural hypothesis of shell patterning: the secretory activity of the epithelial cells that generate shell patterns is regulated by nervous activity. “ https://lnkd.in/dgWQqGF View in LinkedIn
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linkedin post 2020-12-29 05:57:59

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UV LIGHT HISTORIES. “Unlike their modern relatives, the 4.8-6.6 million-year-old fossil cone shells often appear white and without a pattern when viewed in regular visible light. By placing these fossils under ultraviolet (UV) light, the organic matter remaining in the shells fluoresces, revealing the original coloration patterns of the once living animals. However, it remains unclear which compounds in the shell matrix are emitting light when exposed to UV rays.” https://lnkd.in/dUkV8Fr View in LinkedIn
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linkedin post 2020-12-29 05:55:42

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PHYLOGENETIC SIGNAL. “We found phylogenetic signal in the continuous parameters of the primary neural network and in the presence/absence of a hidden network, suggesting that the model reasonably approximates the developmental processes underlying pigmentation patterns in the Conus species we considered. In contrast, various features of the pigmentation patterns, such as the presence of stripes and dots, do not have significant phylogenetic signal.” https://lnkd.in/dwfZQzE View in LinkedIn
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linkedin post 2020-12-31 03:02:04

linkedin post 2020-12-31 03:02:04

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MAGNETIC SCULPTING OF THE COSMOS. “The tail radius and flaring angle (deviation from a cylindrical shape) are to some extent controlled by the interplanetary magnetic field direction, which controls the intensity of reconnection at the nose of the magnetosphere.” https://link.springer.com/article/10.12942/lrsp-2007-1 View in LinkedIn
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linkedin post 2020-12-30 06:13:14

linkedin post 2020-12-30 06:13:14

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BEYOND COMPUTATION. “There has recently been proposed a limit on the computational power of the universe, i.e. the ability of Laplace's demon to process an infinite amount of information. The limit is based on the maximum entropy of the universe, the speed of light, and the minimum amount of time taken to move information across the Planck length, and the figure was shown to be about 10(120) bits. Accordingly, anything that requires more than this amount of data cannot be computed in the amount of time that has elapsed so far in the universe.” https://en.m.wikipedia.org/wiki/Laplace%27s_demon View in LinkedIn
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linkedin post 2020-12-30 06:11:54

linkedin post 2020-12-30 06:11:54

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MAGNETOSPHERE SIZE. “The size and shape of the magnetosphere is controlled by the interaction of the interplanetary magnetic field and solar wind flow with the internal geomagnetic field and the magnetospheric plasma environment. The size is largely controlled by the solar wind dynamic pressure, which is balanced by the magnetic pressure inside the magnetosphere.” https://link.springer.com/article/10.12942/lrsp-2007-1 View in LinkedIn
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linkedin post 2020-12-30 06:10:25

linkedin post 2020-12-30 06:10:25

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MAGNETOSPHERE SIMULATIONS. “However, even with neutral atom imaging, much of the magnetosphere remains invisible to our eyes and instrumentation. To provide conceptual and predictive models of the magnetospheric evolution, large-scale global magnetohydrodynamic (MHD) simulations have been developed.” https://link.springer.com/article/10.12942/lrsp-2007-1 View in LinkedIn
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