fullsquare

joined 1 year ago
[–] fullsquare@awful.systems 5 points 1 month ago (2 children)

there are also more damage-susceptible things in a datacenter

[–] fullsquare@awful.systems 0 points 1 month ago (3 children)

calcium carbonate is still basic and even hydrogen carbonate is basic enough to be protective against steel corrosion

The Calcium Carbonate once dissolved in water will start to form the Calcium Hydroxide layer on the surface, thats the alkaline layer, and deeper in the carbonation creates acidity.

100% wrong, how come there's more carbon dioxide inside than outside, you're starting from calcium hydroxide and silicate. on the surface there's some carbonate formation from carbon dioxide, but when it can't get there calcium silicate forms instead. either way both are basic

[–] fullsquare@awful.systems 2 points 1 month ago

coated rebar isn't, it'll always get dinged somewhere. stainless is expensive and the real available scalable option is either galvanized or sometimes basalt fiber, or glass fiber but i've not heard about it too much. the most important factor in slowing down corrosion is how thick concrete layer is on top of rebar, because concrete is very slightly porous and will let oxygen in, but the thicker that layer is, the slower oxygen gets to rebar, then the slower corrosion is, and this means it takes longer for rust layer to grow enough for concrete around rebar to fail due to swelling, because rust takes more volume than corroding steel

a bit of vinegar might strip zinc layer, but won't do too much and definitely it won't matter long term until most of zinc layer is gone. salt also promotes corrosion but this also depends on oxygen availability and won't be too fast, it would only matter if there's salt in concrete in large amounts

[–] fullsquare@awful.systems 4 points 1 month ago (2 children)

these things can corrode rebar slightly

[–] fullsquare@awful.systems 8 points 1 month ago (5 children)

concrete is calcium carbonate and silicate, both are basic. it's also slightly porous but mostly waterproof by itself, doesn't matter that hard in this application since there will be AC removing water from the inside 24/7 anyway

[–] fullsquare@awful.systems 39 points 1 month ago (1 children)

it's more turbines, not sure if it's the same site or another

[–] fullsquare@awful.systems 49 points 1 month ago

This will be good for renewables. Every solar inverter and wind turbine needs this stuff

[–] fullsquare@awful.systems 3 points 1 month ago* (last edited 1 month ago)

they need something like two trillions for entire business to make sense, doesn't mean that they'll get it. zitron says the entire sector is worth something in tens of billions in revenue (not profit) per year

[–] fullsquare@awful.systems 5 points 1 month ago

photovoltaic panels are just giant diodes you can run them in reverse and every panel gets that 0.6V voltage drop like any other silicon junction

[–] fullsquare@awful.systems 22 points 1 month ago

Yeah they'll make medbeds any day now. Or maybe it's for their internal use only, because they'll noticed bubble and don't like what they're seeing. I wonder if they're foolish enough to vacuum up all data from companies that used their chatbots to come up with something hoping that no one will notice

Every single bit of that is so fucking stupid, they're replaying crypto playbook 1:1. Spot an industry that they think they'll manage in, then try to leech off of it in purest display of rentseeking imaginable, coupled with techbros folk belief that since programming is soo haard, then as they can do that they can do everything else too, all with no plan, no labs, no specialists onboard or faintiest idea what they're doing

[–] fullsquare@awful.systems 1 points 3 months ago

that's reskinned, siloed matrix instance with maybe minimal changes

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