isolatedscotch
@isolatedscotch@discuss.tchncs.de
- Comment on Applying 'extreme heat' to lithium-ion batteries reportedly restores their capacity, and I think it's the sustainable tech breakthrough of 2025 8 hours 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.
- Comment on Hopefully, Future School Kids Will Have to Write Essays About This 1 month ago:
ok so
I just watched that and
why 2 pairs of knees?
am I missing the joke?
- Comment on Hopefully, Future School Kids Will Have to Write Essays About This 1 month ago:
give me my 30 minutes back
- Comment on [deleted] 1 month ago:
no, it’s definitely a Florence flask, trust trust
- Comment on Do tell!!! 1 month ago:
red wine glasses also usually have a flatter bottom so that you can heat it up if needed by holding it on your palm with the stem going under
- Comment on Is cops being evil/lazy/incompetent a USA specific thing, or is it the same everywhere in the world? 1 month ago:
TIL
- Comment on Is cops being evil/lazy/incompetent a USA specific thing, or is it the same everywhere in the world? 1 month ago:
it’s everywhere, but in the usa it’s exacerbated by the fact that most people have guns
while watching bodycam footage I often find myself thinking “just open the car door and cuff him, why hesitate and risk starting a car chase”
followed by the realization “oh, he has a gun”
obligatory Don’t talk to the police
- Comment on [Louis Rossmann] Brother turns heel & becomes anti-consumer printer company 1 month ago:
- Comment on [Louis Rossmann] Brother turns heel & becomes anti-consumer printer company 1 month ago:
dude I would pay gold for that
- Comment on This Cybertruck shaped man is destroying our government 1 month ago:
sorry, I see you’ve made a typo there. The president is the man in black in the front of the photo, the one behind him is just a dog
- Comment on MaoMao no that's Okarun Ball 1 month ago:
- Comment on Henry Symeonis 1 month ago:
now put the stepladder inside a room with a door, make the chimps beat up anyone who opens the door, and you’ll have a next gen security system
- Comment on It hurt by just seeing 1 month ago:
no homo-hameha
- Comment on Nope 2 months ago:
I don’t get it
- Comment on How was your valentines day weekend? 2 months ago:
I bought a new drill (cord, does both hammer drill and regular)
Pretty nice so far, especially with concrete bits
- Comment on He's so negative. He's so weird. 2 months ago:
someone has done a Mustard binge watch
- Comment on The extremely rich would rather not have another Einstein unless they knew they could control them and it wouldn't hurt the bottom line. 2 months ago:
to be fair the phrase applies to both
- Comment on Colombian president says cocaine 'no worse than whisky' 2 months ago:
“The only difference between screwing around and science is writing it down”
- Comment on Colombian president says cocaine 'no worse than whisky' 2 months ago:
it is, but the graph is referring to pure caffeine, which (unless you crush up pills and do lines of it) is in minimal amounts in coffee
- Comment on I wonder how things are going in America today... 2 months ago:
First of all, sorry for the harsh response, I was in a hurry and I probably passed off as a dickhead
secondly tho, from the video you sent yourself at 9:43 “Nitromethane, all by itself, is a high explosive, but it is so inert, it’s almost impossible to set it off”
And that’s what I (probably in a bad way) implied in my first message, nitromethane either requires to be sensitized with something like ammonium nitrate (to make ANNM) or with ethylene diammine (to make PLX) (or really with any basic substance, even sodium hydroxide you get as a drain cleaner can work, but it gets too sensible and can detonate on its own while you work on it)
Here’s another video that shows nitromethane just plainly burning
- Comment on I wonder how things are going in America today... 2 months ago:
Nitromethane doesn’t explode on it’s own under normal conditions
- Comment on I wonder how things are going in America today... 2 months ago:
It’s not like they can rely of self sufficient solar panels, they just lobbied them out of existance with climate change denial
- Comment on I wonder how things are going in America today... 2 months ago:
That’s not balanced though
4 CH~3~NO~2~ + O~2~ → 4 CO + 6 H~2~O + 2 N~2~
also, why are we burning nitromethane?
- Comment on Soldering/De-soldering USB flash-drive Plugs 2 months ago:
That’s why I keep my backups on the sd card in my Raspberry pi
- Comment on What are your Homelab goals for 2025? 3 months ago:
docker-ify everything, my nginx, nextcloud, pihole, jellyfin, and basically everything else is a nightmare and I can’t even begin to understand how to modify the shit that
2023 me did2023 chatgpt spat out, so having everything in some neat docker composes is gonna help immenslyalso making the Pi that everything’s hosted on boot of an SSD instead of a cheap chinese SD card, but that requires money and I’m all out
- Comment on Do you want me to heat that up in the "Michael Wave"? 3 months ago:
free microwave oven transformer? yes please
- Comment on Choosing pink is chaotic evil? 3 months ago:
blue, so I would finally have a friend
- Comment on flouride 4 months ago:
lmao. rofl even. Fluoride is incredibly expensive AND useful, if you run an industry you wanna make sure you absolutely recover it from byproducts and reuse it, not to mention that with how low the levels in tap water are, it wouldn’t be even a good way of disposing a lot of it
- Comment on flouride 4 months ago:
many toothpastes have it, no need to use multivitamins
- Comment on As a novice at soldering, I now have an opinion about single-sided vs. double-sided breadboards 4 months ago:
the last one is so true, I never realized how dark my desk was until I tried soldering and couldn’t do shit without an extra desk lamp
