• 0 Posts
  • 30 Comments
Joined 1 year ago
cake
Cake day: June 16th, 2023

help-circle





  • Marketing: We need to defend this - what’s something people are really excited about?

    Engineer: Stainless steel; you can’t make a good stainless without nickel

    Salesman: Oooh - I know! How about nickels? Everybody loves nickels and their worth 5 cents each!

    Engineer:

    Marketing:

    Intern: You know, they use nickel in battery packs for electric cars

    Marketing: Oh, right - everybody likes electric cars. Green and vroom-vroom, I love it!

    Engineer: You know that electric cars don’t go vroom-vroom, right?

    Marketing: I’m going with electric cars, it’s a feel-good use people will get behind.


  • I mean, we sort of set up this fuck-fest despite Britain telling us it was a bad idea. But we were the Victors of the World™ so clearly we knew what we were doing (clears throat). Kind of like our useless embargo of Cuba, we made a decision and we’re sticking with it, no matter how stupid or counterproductive it is, and there’s a very vocal portion of the electorate which supports the move (mostly out of spite, which makes them that much more intractable).

    Is the current war terrible? Sure. Nobody should be killing civilians or taking the hostage. Is the plight of the Palestinians real? Yeah, it is. Israel has been an absolute menace, because they can.


  • I had high hopes for Dex when it was first announced and I was on android for my phone, but dragging around a monitor was more work than just bringing my laptop. I got a 12.9" iPad a couple years ago as a portable library, then last year thought I might replace my (Windows) laptop by adding a keyboard and mouse to the iPad so I wouldn’t have to take both into the field for minor work. I’ve also got a Samsung S7 so I tested it out as well. The capability/usability gap between the full desktop version of Word and the mobile versions made me give up. Understand I have a dozen templates, from simple to complex, in Word, and around 20 calculation or tracking Excel sheets - so transitioning to Pages/Docs and Sheets/Numbers would cost me about $20k in productivity time. And I still wouldn’t have my CAD, finite element analysis, or industry-specific utilities with me.


  • 100% true - but if people feel the need to create so many mods, then there are probably lots of things people feel aren’t good enough about the game. I’ll admit my gaming time is limited, so just researching and adding mods could easily take all my time. I mean, fuck, I sold my Warthog HOTAS and went back to a cheap thrusmaster not because I liked the thrustmaster better, but because I was spending more time writing and fixing scripts and updating my bindings than actually playing the game. And every time an update would come out that would break a script I would spend pretty much my entire gaming time budget for a couple weeks just getting it running again. It got to the point where I just didn’t play those games because every patch would change something and something (even something small) would break or be incompatible. I’m kind of over that.





  • Maybe stupid is the wrong word? Willfully, negligently, and/or belligerently ignorant might be more accurate, I guess. These people get pretty angry when told they can’t build on “their land” because it s uninsurable and it is within the (statistical) flood plane. These are the same people you see crying on TV and angry at the government for not paying to rebuild their house, or for letting them build there at all, after a flood. They conveniently forget how they were told that it would flood and they intentionally ignored the warnings. I don’t know; in my book that’s pretty stupid.


  • “the country’s flood zones — areas that are deliberately flooded to absorb excess water — were built. But such areas are no longer as sparsely populated as they once were. Local governments have allowed towns in designated flood zones to grow, despite regulations meant to control the number of residents living there.”

    "“Is it the government’s fault or is it the people’s fault for moving back to these places?” said Wang Weiluo, an engineer and expert on China’s water system who is based in Germany. “It’s the government’s. All those people were given approvals to build their homes there. They’re the government’s rules and they didn’t enforce them.”

    Yeah, so, I happen to work in this field (or adjacent to it) in the US. At least here, everybody knows where the flood zones are - published maps, disclosures when you buy property, disclosures/regulations when you build. And you know what? The dumb motherfuckers I work for will do everything they can to skirt the regulations because they haven’t seen in flood in a long time, and the government is just over-regulating. And in the rural counties where there is little to no regulation enforcement, they just build there without permits - or even with permits that have been issued without due diligence on the part of the building official.

    I have no doubt that there are a bunch of stupid fucking hicks in China, and stupid fucking hick government officials, and greedy fucking land sellers and builders who have the same attitude. I feel bad for the people who got flooded out and lost everything, because that’s a terrible fate - especially if you didn’t realize what you bought. But this is the result of human stupidity.

    Life is hard. It’s even harder when you’re stupid.


  • Entirely true, but since we’re talking volume, this is only a 25% increase in linear dimensions (for the advertised 2x increase) or 35% (for the 2.5X maximum slurry density). If we are limited to a specific height of retention, that’s 40% and 60% (rounded). Note: for structural capacity, like a tank, retaining a g=2.5 liquid requires substantially higher strength than a g=1 liquid (for a given retention height). Since this is the internet and should source my knowledge: I know this because I happen to be an engineer who designs retaining structures. Anyway…

    For the effective cost of creating and maintaining the slurry, maintaining the integrity of the system (and keeping out wildlife), and the cost of decommissioning the otherwise unusable fluid, you’re likely talking about a reduction in area of 20-38% (1/8) to switch from using plain water to this engineered material. I don’t disagree that there may be some edge cases where the increased risk and expense is justifiable, but it’s hard to see this being viable except as some kind of tech demo.


  • This is logically efficient from a technical standpoint, but from a practical perspective is a terrible idea. You’re only getting 2-2.5x th energy storage out of the process, but in return you’re effectively requiring that the entire fluid system be isolated from the environment. Toxicity aside, you can’t do anything with the fluid outside of the system. It’s probably not something you want local fauna drinking, nor do you want even the slightest chance of this leaking into the local aquifers. I presume that, if it’s not fully isolated, the fluid mix balance would have to be adjusted to offset evaporation of the water. And if the plant turns out not to be as great at you hoped hat do you do with the fluid?

    Some numbers - a quick google says “According to Ofgem, the typical household in Britain uses approximately 2,900 kWh of electricity annually.” I’m going to round that up to 8kWh/day. For a small village of, say, 1250 homes and a three day storage capacity, that’s 30MWh. 1MJ (MWs) is 1000kg (one metric ton) stored at 100m - the upper end of this project. Since 3600 seconds per hour x 1MWs = 1 MWh, and we want 30, that’s 1MT x 3600 x 30 = 108,000 Metric Tons of this high density liquid needed for a small project to put a 3 power day buffer in place for a town of 1250 houses. WTF are you going to do with 108,000 metric tons of high-density fluid if you decide is isn’t working? Your reservoir would only need to be 25% bigger (wider, longer, and deeper/taller) to just do the whole thing with water and you wouldn’t need to figure out how to get 3500 full size tanker trucks to transport it all away somewhere for a different project for for de-slurry processing.