#pumice — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #pumice, aggregated by home.social.
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Reports from Manus Island speak of pumice rafts from the Titan Ridge eruption causing an environmental disaster and preventing fishing which they rely on for food.
#pumice #Manus #volcan #volcano #TitanRidge #CentralBismarckSea
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Reports from Manus Island speak of pumice rafts from the Titan Ridge eruption causing an environmental disaster and preventing fishing which they rely on for food.
#pumice #Manus #volcan #volcano #TitanRidge #CentralBismarckSea
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Undersea volcano erupts in Papua New Guinea’s Bismarck Sea prompting tsunami concerns
A volcano is erupting under the ocean in the Bismarck Sea, prompting warnings of possible tsunamis from authorities…
#NewsBeep #News #Headlines #ash #BismarckSea #BismarckSeavolcano #eruption #fishermen #PapuaNewGuinea #pumice #reef #smoke #TitanRidgeVolcano #TopNews #TopStories #Tuna #undersea #volcanic #Volcaniceruption #Volcano
https://www.newsbeep.com/au/680832/ -
Undersea volcano erupts in Papua New Guinea’s Bismarck Sea prompting tsunami concerns
A volcano is erupting under the ocean in the Bismarck Sea, prompting warnings of possible tsunamis from authorities…
#NewsBeep #News #Headlines #ash #BismarckSea #BismarckSeavolcano #eruption #fishermen #PapuaNewGuinea #pumice #reef #smoke #TitanRidgeVolcano #TopNews #TopStories #Tuna #undersea #volcanic #Volcaniceruption #Volcano
https://www.newsbeep.com/au/680832/ -
Blender tutorial - Procedural rocks (pumice)
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Scientist makes groundbreaking discovery while studying ancient Roman technique for concrete: 'We have a huge potential'
by Calvin Coffee
Sun, August 31, 2025"Concrete has a massive carbon footprint. One researcher from the University of Auckland is working to reduce it by studying ancient #Roman techniques. Using natural volcanic materials and industrial byproducts, he's incorporating #pumice and #seashells to create an #EcoFriendly, traditional alternative.
"At the Structures Testing Laboratory in Newmarket, New Zealand, Enrique Del Rey Castillo blends volcanic ash and kaimoana shells as replacements in the cement-making process, leveraging their #SelfHealing properties, which can repair cracks over time through natural chemical reactions.
"This initiative is crucial, as concrete is one of the world's most polluting materials, with global cement production accounting for 8% of total carbon emissions, contributing to rising global temperatures and increasing health risks.
"Del Rey Castillo has spent years testing how local materials can serve as sustainable alternatives. After focusing on conventional substitutes such as fly ash, he shifted to natural materials available nearby.
" 'I realised we have a huge potential in New Zealand with the use of natural #volcanic materials and #byproducts of primary industries,' Del Rey Castillo said.
"Concrete is essential for constructing bridges, roads, dams, and buildings, but its production releases over 4 billion tons of carbon dioxide annually. Calcining cement-primary materials at 1,500 degrees Celsius in a kiln emits large amounts of carbon dioxide and produces chemical reactions. Each pound of concrete releases 0.93 pounds of carbon dioxide.
"Pumice, however, doesn't require the energy-intensive calcining process; it just needs to be dried at 100 degrees Celsius to remove moisture before being ground into a fine powder. 'The carbon footprint is about 8-10% of the carbon footprint of cement,' Del Rey Castillo explained."
Read more:
https://www.yahoo.com/news/articles/scientist-makes-groundbreaking-discovery-while-184500351.html#SelfHealingConcrete #RomanConcrete #ReusingByproducts #Concrete #CarbonFootprint #Infrastructure #SolarPunkSunday #AncientTechnology
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Scientist makes groundbreaking discovery while studying ancient Roman technique for concrete: 'We have a huge potential'
by Calvin Coffee
Sun, August 31, 2025"Concrete has a massive carbon footprint. One researcher from the University of Auckland is working to reduce it by studying ancient #Roman techniques. Using natural volcanic materials and industrial byproducts, he's incorporating #pumice and #seashells to create an #EcoFriendly, traditional alternative.
"At the Structures Testing Laboratory in Newmarket, New Zealand, Enrique Del Rey Castillo blends volcanic ash and kaimoana shells as replacements in the cement-making process, leveraging their #SelfHealing properties, which can repair cracks over time through natural chemical reactions.
"This initiative is crucial, as concrete is one of the world's most polluting materials, with global cement production accounting for 8% of total carbon emissions, contributing to rising global temperatures and increasing health risks.
"Del Rey Castillo has spent years testing how local materials can serve as sustainable alternatives. After focusing on conventional substitutes such as fly ash, he shifted to natural materials available nearby.
" 'I realised we have a huge potential in New Zealand with the use of natural #volcanic materials and #byproducts of primary industries,' Del Rey Castillo said.
"Concrete is essential for constructing bridges, roads, dams, and buildings, but its production releases over 4 billion tons of carbon dioxide annually. Calcining cement-primary materials at 1,500 degrees Celsius in a kiln emits large amounts of carbon dioxide and produces chemical reactions. Each pound of concrete releases 0.93 pounds of carbon dioxide.
"Pumice, however, doesn't require the energy-intensive calcining process; it just needs to be dried at 100 degrees Celsius to remove moisture before being ground into a fine powder. 'The carbon footprint is about 8-10% of the carbon footprint of cement,' Del Rey Castillo explained."
Read more:
https://www.yahoo.com/news/articles/scientist-makes-groundbreaking-discovery-while-184500351.html#SelfHealingConcrete #RomanConcrete #ReusingByproducts #Concrete #CarbonFootprint #Infrastructure #SolarPunkSunday #AncientTechnology
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Pumice-Alutiiq Word of the Week-January 29
[the_ad id="30587"]Pumice — Mangil'un, Qapuk
Allrani iwaiyaqa qapuk qutmi, kesiin miktaartuq. – Sometimes I find pumice on the beach, but it is always small.
Pumice is a type of volcanic glass. This gritty, light-colored igneous rock forms during volcanic eruptions, as water mixes with molten lava. The water turns to steam and creates...
https://alaska-native-news.com/pumice-alutiiq-word-of-the-week-january-29/72295/
#pumice #alutiiq #wordoftheweek -
Evidence Of One Of The Largest Explosive Eruptions Ever Recorded In The Aegean Sea
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https://phys.org/news/2024-01-evidence-largest-explosive-eruptions-aegean.html <-- shared technical article
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https://doi.org/10.1038/s43247-023-01171-z <-- shared paper
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#GIS #spatial #mapping #geology #structuralgeology #vulcanism #aegean #santorini #IODP #eruptions #greece #remotesensing #seafloor #hydrospatial #Christiana #Kolumbo #risk #hazard #volcano #engineeringgeology #mineralogy #pumice #sediment #history #Holocene -
Evidence Of One Of The Largest Explosive Eruptions Ever Recorded In The Aegean Sea
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https://phys.org/news/2024-01-evidence-largest-explosive-eruptions-aegean.html <-- shared technical article
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https://doi.org/10.1038/s43247-023-01171-z <-- shared paper
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#GIS #spatial #mapping #geology #structuralgeology #vulcanism #aegean #santorini #IODP #eruptions #greece #remotesensing #seafloor #hydrospatial #Christiana #Kolumbo #risk #hazard #volcano #engineeringgeology #mineralogy #pumice #sediment #history #Holocene -
Volcanic field in the southern Aegean Sea more explosive in the past than assumed: On an international #expedition co-led by Dr Steffen Kutterolf from #GEOMAR, researchers discovered a previously unknown thick #pumice deposit around the island of #Santorini: https://www.geomar.de/en/news/article/beweise-fuer-eine-der-groessten-jemals-registrierten-eruptionen-in-der-aegaeis
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Volcanic field in the southern Aegean Sea more explosive in the past than assumed: On an international #expedition co-led by Dr Steffen Kutterolf from #GEOMAR, researchers discovered a previously unknown thick #pumice deposit around the island of #Santorini: https://www.geomar.de/en/news/article/beweise-fuer-eine-der-groessten-jemals-registrierten-eruptionen-in-der-aegaeis
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The surprisingly connected origins of "foam" and "pumice".
https://youtube.com/shorts/E4QrHih0zVk
#etymology #WordNerd #linguistics #HistoricalLinguistics #language #words #lingcomm #foam #pumice
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The surprisingly connected origins of "foam" and "pumice".
https://youtube.com/shorts/E4QrHih0zVk
#etymology #WordNerd #linguistics #HistoricalLinguistics #language #words #lingcomm #foam #pumice
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I gave Biscuit a little lump of pumice. #chinchilla #pumice
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I gave Biscuit a little lump of pumice. #chinchilla #pumice
