overview for isolatedscotch

Pictures of Animals Getting CT Scans Against their Will: A Thread in c/science_memes@mander.xyz

[–] isolatedscotch@discuss.tchncs.de 50 points 3 months ago (2 children)

tomorrow is monday again, folks

Have a good week everyone! in c/memes@lemmy.world

[–] isolatedscotch@discuss.tchncs.de 1 points 3 months ago

Dryer started making a burning smell yesterday.

Here, take this

I belive in you!

Does anyone have any advice on how to make homemade conductive paint to fix a cracked carbon trace in a game controller? in c/askelectronics@discuss.tchncs.de

[–] isolatedscotch@discuss.tchncs.de 2 points 3 months ago* (last edited 3 months ago) (1 children)

crush up some graphite really finely in a mortar (from a good source, like the carbon rods in zinc-carbon batteries, which can be usually found as those chonky D batteries if you dont need the large rods the video shows, or soft pencil leads, as the hard ones contain clay, and also be prepared to spend a lot if you go the pencil lead route), mix with glue, play with ratios (the more graphite the better, but it might start cracking with too much graphite) and type of glue (elmers, superglue, epoxy, try to aim for something slightly flexible as tou mentioned it's gonna be under stress)

but i'll warn you that it's gonna work kinda bad compared to finding where the carbon trace originates and soldering a wire there (there's gotta be metal somewhere)

floats away in disgust in c/science_memes@mander.xyz

[–] isolatedscotch@discuss.tchncs.de 13 points 3 months ago (6 children)

op here, I reposted this from a group chat and didn't notice, sorry for forever cursing your eyes with the forbidden art

Applying 'extreme heat' to lithium-ion batteries reportedly restores their capacity, and I think it's the sustainable tech breakthrough of 2025 in c/technology@lemmy.world

[–] isolatedscotch@discuss.tchncs.de 19 points 3 months ago

wha wha what

no, it's an organic solvent like ethylene carbonate/propylene carbonate + some other stuff, which have a boiling point of 230+°C ( 446°F)

heating up batteries is (mostly) fine (under controlled scenarios with known good batteries, spicy pillows can always happen with bad batches) as long as the plastic holding them together doesn't melt

you physically CANNOT make a lithium ion battery with water because lithium reacts with water

from the wikipedia page

Lithium reacts vigorously with water to form lithium hydroxide (LiOH) and hydrogen gas. Thus, a non-aqueous electrolyte is typically used, and a sealed container rigidly excludes moisture from the battery pack. The non-aqueous electrolyte is typically a mixture of organic carbonates such as ethylene carbonate and propylene carbonate containing complexes of lithium ions.[45] Ethylene carbonate is essential for making solid electrolyte interphase on the carbon anode,[46] but since it is solid at room temperature, a liquid solvent (such as propylene carbonate or diethyl carbonate) is added.