#mortar — Public Fediverse posts

AUTOMATED FIREPOWER ON TRACKS

https://youtube.com/shorts/30bYe1iJ5hU?is=SXfiANsR_PHwmW2-

> The Bagulnik 82 automated mortar carrier utilizes an integrated robotic arm to facilitate precision loading of 82mm high explosive projectiles into a rear mortar.

Oh boy, I've found the automatic Mortar Sentry from Helldivers2 in real life but on tracks. 🤯😁😉

#Helldivers2 #Mortar #Sentry #YouTube #Shorts #Video #FIREPOWER

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

How to Make #Lime (#Apog) from #Clamshells

Aug 1, 2020

"Eating seashells is one of your favorites?... Well, what you can do to the #clamshells?... Some of us, didn't know on how to make it into valuable product just like making lime or 'apog'. Find out in this video, saving shells to become waste."

https://www.youtube.com/watch?v=UGdEYUj5LU8

#SolarPunkSunday #SustainableMaterials #TraditionalTechnology #ZeroWaste #Clamshells #Mortar #LimeMortar #Seashells

[#TRADESHOW] #World of #Concrete #Asia presents #quality #products in the #industry such as #general concrete, concrete #surface #treatment, concrete #additives, #waste concrete #recycling #equipment and products, #leveling equipment, #polishing equipment, #flooring, and #mortar #testing equipment. 14.-16. August 2024. SNIEC (Shanghai New #International #Expo #Centre), #Shanghai, #China. https://cnbusinessforum.com/event/world-of-concrete-asia-2024-premier-concrete-flooring-mortar-expo/

#AR #Medieval #Apothecary in your space with #AppleVisionPro #App Spruce Up, try out in #Selfies & #Videos on #iPhone & #iPad

Includes items like #Glass #Alembic #Herbs #Spices #Mortar & #Petzel #Alcohol #Burner & #Medicine #Vial

Learn more at http://spruceup.vision/mastodon

#MixedReality #AugmentedReality #XR #VR #iOS #iPadOS #VisionPro #Apple #AppleProducts #WWDC24 #VRTech #VRTechnology #TechTrends #TechProducts #Tech #AppDesign #Technology #Innovation #AppDeveloper #Developer #TechnologyNews

I just had an idea for a #RickAndMorty alternate universe bit, where they use the #PortalGun to visit a universe where #Morty is a #mortar and #Rick is a #peslte.

They get in an argument over the names of this antiquated #apothecary tool's parts (which part should have been named the mortar and which the pestle), which then turns into an actual fight over their respective names and bodies in this universe.

Meanwhile, a gigantic alien pharmacist uses the two of them to grind up some anti-flatulence tablets, then uses #OrsonScottCard (who lives in this universe as a credit card) to cut the resulting powder into two long lines, snorts them, and lets out a long, ecstatic sigh of relief.

At this last part, Rick and Morty stop fighting and stare up at the alien pharmacist in utter confusion/horror for several seconds, eyes wide and mouths agape. Finally, Morty says "I won't tell anyone if you won't," Rick replies, "Deal," and then zaps them into the next universe with the portal gun.