21Sep 2022 by Nigel Fleming No Comments

linkedin post 2020-11-19 05:18:44

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CATALYSTS. "Clouds are a very special subset of the atmosphere because they present substantial amounts of condensed-phase water (liquid or solid) that can dissolve gases that would otherwise be present in the gas phase, and, as a consequence of condensed-phase reactions, permit reactions to occur that would not otherwise occur or would be much slower. In this sense "clouds may be considered to serve as catalysts of atmospheric reactions." https://lnkd.in/dHZs9ca View in LinkedIn
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21Sep 2022 by Nigel Fleming No Comments

linkedin post 2020-11-19 05:17:13

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SUPERCOOLING. "Water droplets commonly remain as liquid water and do not freeze, even well below 0 °C (32 °F), because of the high surface tension of each microdroplet, which prevents them from expanding to form larger ice crystals. Without ice nuclei supercooled water droplets can exist down to about −40 °C (−40 °F), at which point they will spontaneously freeze." https://lnkd.in/dYECyJe View in LinkedIn
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21Sep 2022 by Nigel Fleming No Comments
linkedin post 2020-11-19 05:14:31

linkedin post 2020-11-19 05:14:31

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WHY CLOUDS DON'T FALL. "Upward vertical motions, or updrafts, in the atmosphere also contribute to the floating appearance of clouds by offsetting the small fall velocities of their constituent particles. Clouds generally form, survive and grow in air that is moving upward. Even a large droplet having a radius of 100 microns has a fall velocity of only about 27 centimeters per second (cm/s). And because ice crystals have more irregular shapes, their fall velocities are relatively smaller." http://www.scientificamerican.com/article/why-do-clouds-float-when/ View in LinkedIn
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21Sep 2022 by Nigel Fleming No Comments

linkedin post 2020-11-21 07:15:27

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LOW FIDELITY. “Because these epigenetic inheritance systems typically depend on chemical diffusion and molecular transport processes, they exhibit far lower degrees of fidelity than the nucleic acid coding mechanism characteristic of genetic replication.” https://lnkd.in/dE_ZD9q View in LinkedIn
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21Sep 2022 by Nigel Fleming No Comments

linkedin post 2020-11-21 07:13:30

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THE NEW INHERITANCE. “In the end, a process ontology forces us to expand our understanding of inheritance itself. Recognizing the material overlap between parent and offspring in reproduction makes it obvious that what gets transmitted is much more than just the DNA. The material (i.e. cytoplasmic) continuum that exists between parent and offspring includes many molecular systems that can be inherited apart from the genome, such as macromolecular steady states and self-sustaining metabolic loops.” https://lnkd.in/dE_ZD9q View in LinkedIn
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21Sep 2022 by Nigel Fleming No Comments

linkedin post 2020-11-21 07:09:48

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FRAGMENT FROM NATURE continues from last weekend and concludes this weekend on the theme of process ontology, rather than a world of things. This perspective becomes interesting when pathology is considered, where developments in thinking about the microbiome have introduced the concept of a balance between symbiotic organisms, and when there is an unbalance or dysbiosis, pathology can emerge, driven not by bad bugs per se but by the shift in balance. View in LinkedIn
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21Sep 2022 by Nigel Fleming No Comments

linkedin post 2020-11-20 04:49:46

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SUSPENSIONS. “Clouds form when the invisible water vapour in the air condenses into visible water droplets or ice crystals. There is water around us all the time in the form of tiny gas particles, also known as water vapour. There are also tiny particles floating around in the air - such as salt and dust - these are called aerosols.” https://lnkd.in/dmZsTC5 View in LinkedIn
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