Aderenti Escapes su mastodon
boosted
jonny (good kind)
boosted
My #introduction needs a refresh.
I'm a #PhD student at the University of #Vermont, studying the #Evolution of #Evolvability. I'm into #AI, #ALife, #Biology, and #Philosophy, because I want to understand #life, #adaptation, and #intelligence using my native language of #ComputerScience. I share my musings and #research on my #blog. I love #science generally, and am full of bitchy #AcademicChatter.
I was a #SoftwareEngineer in #SiliconValley for many years, but left in 2021. I'm glad I did, and now I feel a bit betrayed by the #TechIndustry. I've been going back to my #FOSS roots, and gradually #DeGoogle ing my life. I still love to talk about #code #craft, #UX, and healthy #engineering #culture. Recently I've been enjoying #gpu #programming, mostly in #taichilang.
I have a wife and a #cat. I love #nature, #photography, #cooking, and #yoga.
All kinds of people are valid and worthy, but #trans people, folks on the #autism spectrum, and #bipoc get a shout out right now because they need our support.
My #introduction needs a refresh.
I'm a #PhD student at the University of #Vermont, studying the #Evolution of #Evolvability. I'm into #AI, #ALife, #Biology, and #Philosophy, because I want to understand #life, #adaptation, and #intelligence using my native language of #ComputerScience. I share my musings and #research on my #blog. I love #science generally, and am full of bitchy #AcademicChatter.
I was a #SoftwareEngineer in #SiliconValley for many years, but left in 2021. I'm glad I did, and now I feel a bit betrayed by the #TechIndustry. I've been going back to my #FOSS roots, and gradually #DeGoogle ing my life. I still love to talk about #code #craft, #UX, and healthy #engineering #culture. Recently I've been enjoying #gpu #programming, mostly in #taichilang.
I have a wife and a #cat. I love #nature, #photography, #cooking, and #yoga.
All kinds of people are valid and worthy, but #trans people, folks on the #autism spectrum, and #bipoc get a shout out right now because they need our support.
Crissy 𓂀𓃠☥𓆣𓆃
boosted
https://www.theclimatebrink.com/p/you-have-100-energy-slaves
Try to be EXTREMELY mindful when you are getting rid of something or purchasing something casually. The embedded #energy for everything - regardless of how cheap it is - can be mind-boggling.
#climatechange #humanrights #justice #adaptation #migration #hurricanes #drought #flood #heatwave #oil #coal #gas #methane #solar #wind #EV #batteries
https://www.theclimatebrink.com/p/you-have-100-energy-slaves
Try to be EXTREMELY mindful when you are getting rid of something or purchasing something casually. The embedded #energy for everything - regardless of how cheap it is - can be mind-boggling.
#climatechange #humanrights #justice #adaptation #migration #hurricanes #drought #flood #heatwave #oil #coal #gas #methane #solar #wind #EV #batteries
Billy Smith
boosted
Ahhhh... Using a hand-drill to start a fire. Now that takes me back to my days at the Wilderness School! I'd love to try and make a pottery-kiln (I'll be researching that soon...)
#Australia - Making #lime with Primitive Technology
"When heated above 840 degrees Celsius, the lime decomposes into calcium oxide (CaO) or #Quicklime and releases carbon dioxide (CO2). When water is added to the quicklime it becomes calcium hydroxide Ca (OH)2 or #LimePutty. From here the calcium hydroxide can then be shaped into a form and allowed to set.
Carbon dioxide enters the lime putty as it dries causing it to turn back into calcium carbonate. The new calcium carbonate has then set, remaining solid and water resistant.
In my local geography, calcareous rocks such as limestone are absent leading to a difficulty in acquiring the feed stock for lime making. However, I was still able to make lime by collecting the shells of large terrestrial snails that are native to the rainforest here. The unoccupied shells of these snails were gathered up and stored at the hut. Fire wood was gathered and packed neatly into the kiln.
Importantly, the firewood was stacked on top of the grate rather than underneath it in the firebox as is the normal procedure for firing pottery. Using an ordinary updraft pottery kiln in this configuration allows it to reach much higher temperatures than would be possible during normal use. The wood was lit from above and the fire burned down towards the grate. Alternate layers of shells and wood were added on to this burning fuel bed. After adding the last layer of wood to act as a 'lid' to prevent heat loss from above I left the kiln to finish on its own, unsupervised. The whole process took about an hour and a half.
When the kiln had cooled down a few hours later, I took out the calcined shells. Not shown in the video was the fact that some shells got so hot, the dirt stuck to them turned into slag and fused to them, possibly with the lime acting a flux lowering its melting point. This extreme heat (+1200 c) should be avoided as the over burnt lime becomes 'dead lime', unable to slake in water. Most shells were still useable though. They were taken out of the kiln and had water added to them.
An exothermic reaction then ensued. Heat was produced as the lime quicklime turned into slaked lime. The water heated up creating steam and the shells decomposed into a white paste. The paste was stirred and crushed pottery was added to it as an aggregate (sand is normally used for this, I just had a lot of old pot sherds lying about to dispose of).
This lime mortar mixture was then formed into a block shape and left to dry. It took about a week and a half to set as we have had extremely humid, wet weather. The block was observed to have set demonstrating its properties.
What I created is actually lime mortar, typically used for mortaring bricks and tiles together. It’s basically the ‘Glue’ that holds together the building blocks of masonry structures. From my research 20 kg of lime mortar is used on a 1 m square section of brick wall. 5 kg of lime to 15 kg of aggregate (sand, grog etc.) per a 1 m square section of bricks. The shells, though large, are not terribly abundant. A method for finding shells efficiently needs to be made before considering making lime mortar in this fashion. From my experience sand bars in a creek sometimes accumulate snail shells from higher up in the mountains. In these spots, water velocity decreases and shells in the water tend to drop out of the water column. Additionally lime may be partially replaced with ordinary wood ash in mortar without a corresponding decrease in strength. To conclude, making lime in a land without limestone is possible but can be problematic when trying to do so on a large scale."
Watch:
https://thekidshouldseethis.com/post/making-lime-with-primitive-technology
YT:
https://www.youtube.com/watch?v=Ek3aeUhHaFY&t=46s
Wordpress:https://primitivetechnology.wordpress.com/
Patreon page: https://www.patreon.com/user?u=2945881
#SolarPunkSunday #SustainableMaterials #TraditionalTechnology #ZeroWaste #Mortar #LimeMortar #Snailshells #Adaptation #AncientTechnologies #Science #AnimalProducts #LocalMaterials
Ahhhh... Using a hand-drill to start a fire. Now that takes me back to my days at the Wilderness School! I'd love to try and make a pottery-kiln (I'll be researching that soon...)
#Australia - Making #lime with Primitive Technology
"When heated above 840 degrees Celsius, the lime decomposes into calcium oxide (CaO) or #Quicklime and releases carbon dioxide (CO2). When water is added to the quicklime it becomes calcium hydroxide Ca (OH)2 or #LimePutty. From here the calcium hydroxide can then be shaped into a form and allowed to set.
Carbon dioxide enters the lime putty as it dries causing it to turn back into calcium carbonate. The new calcium carbonate has then set, remaining solid and water resistant.
In my local geography, calcareous rocks such as limestone are absent leading to a difficulty in acquiring the feed stock for lime making. However, I was still able to make lime by collecting the shells of large terrestrial snails that are native to the rainforest here. The unoccupied shells of these snails were gathered up and stored at the hut. Fire wood was gathered and packed neatly into the kiln.
Importantly, the firewood was stacked on top of the grate rather than underneath it in the firebox as is the normal procedure for firing pottery. Using an ordinary updraft pottery kiln in this configuration allows it to reach much higher temperatures than would be possible during normal use. The wood was lit from above and the fire burned down towards the grate. Alternate layers of shells and wood were added on to this burning fuel bed. After adding the last layer of wood to act as a 'lid' to prevent heat loss from above I left the kiln to finish on its own, unsupervised. The whole process took about an hour and a half.
When the kiln had cooled down a few hours later, I took out the calcined shells. Not shown in the video was the fact that some shells got so hot, the dirt stuck to them turned into slag and fused to them, possibly with the lime acting a flux lowering its melting point. This extreme heat (+1200 c) should be avoided as the over burnt lime becomes 'dead lime', unable to slake in water. Most shells were still useable though. They were taken out of the kiln and had water added to them.
An exothermic reaction then ensued. Heat was produced as the lime quicklime turned into slaked lime. The water heated up creating steam and the shells decomposed into a white paste. The paste was stirred and crushed pottery was added to it as an aggregate (sand is normally used for this, I just had a lot of old pot sherds lying about to dispose of).
This lime mortar mixture was then formed into a block shape and left to dry. It took about a week and a half to set as we have had extremely humid, wet weather. The block was observed to have set demonstrating its properties.
What I created is actually lime mortar, typically used for mortaring bricks and tiles together. It’s basically the ‘Glue’ that holds together the building blocks of masonry structures. From my research 20 kg of lime mortar is used on a 1 m square section of brick wall. 5 kg of lime to 15 kg of aggregate (sand, grog etc.) per a 1 m square section of bricks. The shells, though large, are not terribly abundant. A method for finding shells efficiently needs to be made before considering making lime mortar in this fashion. From my experience sand bars in a creek sometimes accumulate snail shells from higher up in the mountains. In these spots, water velocity decreases and shells in the water tend to drop out of the water column. Additionally lime may be partially replaced with ordinary wood ash in mortar without a corresponding decrease in strength. To conclude, making lime in a land without limestone is possible but can be problematic when trying to do so on a large scale."
Watch:
https://thekidshouldseethis.com/post/making-lime-with-primitive-technology
YT:
https://www.youtube.com/watch?v=Ek3aeUhHaFY&t=46s
Wordpress:https://primitivetechnology.wordpress.com/
Patreon page: https://www.patreon.com/user?u=2945881
#SolarPunkSunday #SustainableMaterials #TraditionalTechnology #ZeroWaste #Mortar #LimeMortar #Snailshells #Adaptation #AncientTechnologies #Science #AnimalProducts #LocalMaterials
Alex
boosted
I highly recommend this episode of https://overshootpod.com/
This episode is about "what it really means to prepare for a world above 1.5°C, and why governments are clinging to fantasy preparation plans."
I highly recommend this episode of https://overshootpod.com/
This episode is about "what it really means to prepare for a world above 1.5°C, and why governments are clinging to fantasy preparation plans."
Ika Makimaki
boosted
Jess Mahler
boosted
Part 3 begins!
Finally, the stakes come into focus.
How does it all end?
Chapter 29 of "A New Faith" is up on the website at https://tinjar.ghost.io/a-new-faith
Parts 1 and 2 are available to #download (or read online) for #free in #DRMfree#PDF and #EPUB formats
#solarpunk #hopepunk #books #bookstodon #novel #climatechange #adaptation #migration #mystery
#thriller#amwriting#WritersCoffeeClub
#WordWeavers#ScribesAndMakers
#PennedPossibilities #writingcommunity #sciencefiction
#climatefiction
Part 3 begins!
Finally, the stakes come into focus.
How does it all end?
Chapter 29 of "A New Faith" is up on the website at https://tinjar.ghost.io/a-new-faith
Parts 1 and 2 are available to #download (or read online) for #free in #DRMfree#PDF and #EPUB formats
#solarpunk #hopepunk #books #bookstodon #novel #climatechange #adaptation #migration #mystery
#thriller#amwriting#WritersCoffeeClub
#WordWeavers#ScribesAndMakers
#PennedPossibilities #writingcommunity #sciencefiction
#climatefiction
Kim Stanley Robinson's "The Ministry for the Future" described in horrific detail what a deadly heat wave could do. I try to explore how we could move people away from heat in "A New Faith"
#bookstodon #climatechange #adaptation #migration #solarpunk #mystery
[Archive — 2023] Neurasténix et l'Empire de la gênance
Une adaptation de BD comme on sait bien les faire en France : familiale, donc avec des blagues de culs, homophobes et racistes, et des guests dont on se fout.
(Oui, c'était en référence à « Astérix et Obélix : l'Empire du Milieu ».)
▶️ Lire cette BD : https://grisebouille.net/neurastenix-et-lempire-de-la-genance/
📗 Le livre best of : https://editions.ptilouk.net/gb10ans
❤️ Soutien : https://ptilouk.net/#soutien
#archive#BD#GriseBouille #humour#astérix #adaptation#cinémaFrançais#cinéma
