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#chemistry

46 posts · Last used 17h

TKSST • seethis.tv 🌈🪐✨ @tksst@fediscience.org
· 1d ago
Boosted by @trending@homestead.social
🔥 NEW: Ecologist Olivia Sanderfoot at #Cornell is building a new field she calls smoke #ecology, asking how #wildfire smoke affects birds even hundreds of kilometers from any flames. #Birds breathe roughly twice as much air as #humans per breath, using rigid lungs and air sacs, so smoke hits them harder. Sanderfoot is combining atmospheric #chemistry, satellite #data, and thousands of volunteer nest-box observers to track what birds do when #smoke arrives. 👉 https://www.npr.org/2026/10/06/nx-s1-5991854/wildfire-smoke-ecology-birds-wildlife-health #ecology #ornithology #climate #conservation #bluebirds #science #wildlife #nature #birding #research #animals
Wildfire smoke affects animals in unique ways. Scientists are trying to understand it
NPR

Wildfire smoke affects animals in unique ways. Scientists are trying to understand it

The new field of "smoke ecology" examines how wildfire smoke perturbs wild places and animals — and what might be done to prevent its worst mayhem.

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diana 🏳️‍⚧️🦋🌱 @dianea@lgbtqia.space
· 1mo ago
Boosted by @trending@homestead.social
A covalent bond is a chemical bond that involves the sharing of electrons to form electron pairs between atoms. These electron pairs are known as shared pairs or bonding pairs. The stable balance of attractive and repulsive forces between atoms, when they share electrons, is known as covalent bonding.[1] For many molecules, the sharing of electrons allows each atom to attain the equivalent of a full valence shell, corresponding to a stable electronic configuration. In organic chemistry, covalent bonding is much more common than ionic bonding, where atoms are separate and merely associated by electrostatic attraction. https://en.wikipedia.org/wiki/Covalent_bond #chemistry #physics #caturday #caturdayeveryday
en.wikipedia.org
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Dendrobatus Azureus @dendrobatus_azureus@littleone.littlefedi.social
· 1mo ago
Important note about ideal amplifiers in electronics >Amplifier is the generic term used to describe a circuit which produces and increased version of its input signal. However as we will see in this introduction to the amplifier tutorial, not all amplifier circuits are the same as they are classified according to their circuit configurations and modes of operation. >In “Electronics”, small signal amplifiers are commonly used devices as they have the ability to amplify a relatively small input signal. For example from a Sensor such as a photo-device, into a much larger output signal to drive a relay, lamp or loudspeaker for example. https://www.electronics-tutorials.ws/amplifier/amp_1.html #Electronics #electrónica #Physics #Mathematics #Chemistry #Lineair #Algebra
electronics-tutorials.ws
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Bob 🇨🇦🇲🇽🇺🇦 @bielsubob@infosec.exchange
· 2mo ago
Scientists develop new lightbulb-inspired reactor that could transform industrial decarbonization https://interestingengineering.com/innovation/lightbulb-inspired-reactor-transform-industrial-decarbonization #science #chemistry #engineering
New lightbulb-inspired reactor could transform industrial decarbonization
Interesting Engineering

New lightbulb-inspired reactor could transform industrial decarbonization

Researchers at NUS have developed a chemical reactor that harnesses the same heat-generating principle to power industrial chemical reactions.

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Colin Purrington @colinpurrington@flipping.rocks
· 2mo ago
Baking egg shells, as one does. For most of my life I added these to holes dug for tomatoes (because Mom), but I've since learned that that has no effect at all because the calcium carbonate doesn't really dissociate in real time unless you dose it with acids. Same reason I've stopped adding them to the compost. I'm going to grind them up and offer to local birds (I don't have chickens anymore). #CalciumCarbonate #eggs #eggshells #birds #calcium #calcite #chemistry #compost #tomatoes
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Jesus Castagnetto 🇵🇪 @jmcastagnetto@mastodon.social
· 2mo ago
"New four-year #US #student #visa limit could force #international #research PhDs to leave country mid-programme" (#Chemistry World) https://www.chemistryworld.com/news/new-four-year-us-student-visa-limit-could-force-international-research-phds-to-leave-country-mid-programme/4023908.article
New four-year US student visa limit could force international research PhDs to leave country mid-programme
Chemistry World

New four-year US student visa limit could force international research PhDs to leave country mid-programme

Department of Homeland Security rule ends 45-year policy that allowed students to stay past their visa to finish their studies

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Ele Willoughby, PhD @minouette@spore.social
· 2mo ago
Happy birthday to pharmaceutical #chemist Alice Ball (1892-1916) who developed 1st effective treatment for #leprosy. Though her life was cut tragically short, her research saved 1000s from exile & painful, ineffective lifelong treatment for leprosy, & she was a trailblazer for both women & Black scientists.⁠ ⁠ Ball studied #chemistry at UW earning a BSc & 2nd degree in pharmacy 2 years later. 🧵 https://minouette.etsy.com/listing/578429732 #printmaking #sciart #BlackInSTEM #womenInSTEM #histsci
minouette.etsy.com
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TKSST • seethis.tv 🌈🪐✨ @tksst@fediscience.org
· 2mo ago
💁🏻‍♀️ ICYMI: 🌳🪨 A large-scale field #experiment in #Wales shows that adding crushed volcanic #basalt rock dust to #soil accelerates native woodland growth. The #nature-based method boosted #carbon capture by up to 27% in the first four years, providing an urgent tool for global #climate restoration efforts. 👉 Learn more: https://seethis.tv/post/how-does-magic-basalt-dust-help-plants-grow-faster-and-lock-up-more-carbon #biology #calcium #chemistry #climatechange #conservation #ecology #forest #iron #magnesium #minerals #plants #research #rocks #science #silica #solutions #trees #uk #womeninstem #tksst #video
seethis.tv
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TKSST • seethis.tv 🌈🪐✨ @tksst@fediscience.org
· 2mo ago
💁🏻‍♀️ ICYMI: 🌳🪨 A large-scale field #experiment in #Wales shows that adding crushed volcanic #basalt rock dust to #soil accelerates native woodland growth. The #nature-based method boosted #carbon capture by up to 27% in the first four years, providing an urgent tool for global #climate restoration efforts. 👉 Learn more: https://seethis.tv/post/how-does-magic-basalt-dust-help-plants-grow-faster-and-lock-up-more-carbon #biology #calcium #chemistry #climatechange #conservation #ecology #forest #iron #magnesium #minerals #plants #research #rocks #science #silica #solutions #trees #uk #womeninstem #tksst #video
seethis.tv
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TKSST • seethis.tv 🌈🪐✨ @tksst@fediscience.org
· 2mo ago
💁🏻‍♀️ TIL: ☄️🧂 A #meteorite that crashed through a #NewJersey home in 2024 contained preserved salts and organic compounds from its parent #asteroid, evidence of ancient brines interacting with #carbon #chemistry. Researchers found amino acids and other #prebiotic #molecules in the rock. The findings offer new clues about how life’s building blocks may have been delivered to early #Earth. 👉 https://www.seti.org/news/alien-world-chemistry-found-inside-meteorite/ #space #science #astrobiology #seti #nasa #aminoacids #solarsystem #earthscience #meteor
Alien World Chemistry Found Inside Meteorite
seti.org

Alien World Chemistry Found Inside Meteorite

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Alistair K @libroraptor@mastodon.nz
· 2mo ago
Just been helping my son with chemistry, and accidentally flipped the narrative. He was looking at the Haber–Bosch process for making ammonia. I asked him about what ammonia's good for, the timing of the development, the timing of World War 1... He was so suddenly interested like he's never been interested in chemistry before. Then we got onto older ways of extracting nitrates from urine, something that Germany also had an advantage in because they drank so much beer. And then to the initial extraction of phosphorus. And then to calculating that, if only one person were involved, it'd take about a decade of collecting urine to replicate Brand and Kunckel's work. Apparently the chem teacher never talks about things like this. Even though we've been talking about the importance of doing so since the 1990s, and it's supposedly REQUIRED by the national curriculum. #school #chemistry #histSci #histSciTech
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MissConstrue @MissConstrue@mefi.social
· 2mo ago
Hey, can I get a #chemist on the line? Maybe one with #cosmetic or #polymer knowledge? So, I have psoriatic arthritis, and a manifestation is a degradation of my nails. And I was looking into a product, which is advertised as "beneficial" to one's nails, which is not a thing associated with manicure products. It is a #uv cured gel, but rubberized in some way. Here's the thing, all of these "gel" or uv cured products appear to be #resin. Am I wrong in assuming that both long term exposure to resin and UV is incredibly dangerous? When I've done resin work, I've been fully masked and gloved and all of the safety sheets say to avoid skin contact. I stopped working with it because of safety and environmental concerns. How is nail resin any more safe? #Chemistry #question #healthAndSafety
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