• 3 Posts
  • 441 Comments
Joined 2 年前
cake
Cake day: 2023年7月1日

help-circle
  • saltesc@lemmy.worldtomemes@lemmy.worldThere are two kinds of people.
    link
    fedilink
    arrow-up
    1
    arrow-down
    1
    ·
    edit-2
    13 分钟前

    You’re mixing up perspective with the object’s actual coordinates system. The “left-right-up-down” are your perspective or computer screen and do not define the axes of the object itself. The object has its own.

    If I rotate a map on a table, it’s X and Y don’t suddenly flip. The coordinates belong to the object, I’m just viewing them from a different perspective now.

    In mathematics, the Z axis only exists because it’s defined as being perpendicular to an existing plane (the plane X and Y form). The gridlines represent that plane and Z’s extrusion values reference it. Your perspective or viewing angle don’t influence these coordinates at all.

    Commonly we face the XY plane down as it’s “floor”. We build things from the ground up. We draw from top down. It’s just how gravity brought the standard around. You can flip it however you want, though. But if you see a grid, that’s a plane and Z is extrusion off that.


  • I know Z as upward. X and Y were always on the base plane representing length and width. Z comes in being all like, “Now we’re being 3D!”

    So wherever the “floor” is, represented with gridlines, boundary, canvas, etc. that’s where they live. That is Flatland where there is no up or down. It is 2D where most of my work is. If you try tell me Y is Z, I’d ask “wtf is a Z?”




  • saltesc@lemmy.worldtoScience Memes@mander.xyz*confused flatfish noises*
    link
    fedilink
    English
    arrow-up
    2
    arrow-down
    1
    ·
    3 天前

    By far. We didn’t get to be #1 by fucking around, and we didn’t get to be #1 without all that dominating evolution lingering around. We’re so good at it, we’re predators to ourselves because there’s no prey left to dominate. Every other species dies farmed or as a hobby.

    But I can say, that if I were die be prey to something, I’d rather it be to a human. Everything else starts eating you before you’re even dead lol.


  • saltesc@lemmy.worldtoScience Memes@mander.xyz"Jurassic" Park
    link
    fedilink
    English
    arrow-up
    19
    ·
    edit-2
    4 天前

    iirc John Hammond covers this in the book. I was so young, but something is triggering it for me. Could just be the subconscious trying to protect grade 4 nostalgia, though.

    Hell, I could’ve picked that up off playing Jurassic World Evolutions in the last six months and it’s backpedal lore.

    Whatever it is, Michael Crichton was no idiot.


  • saltesc@lemmy.worldtoScience Memes@mander.xyz*confused flatfish noises*
    link
    fedilink
    English
    arrow-up
    212
    arrow-down
    1
    ·
    edit-2
    4 天前

    I think that’s specific to mammals. Just off the top of my head…

    Invertebrates? No. All out

    Fish? No. Also a Hammerhead would’ve really sold this comic lol.

    Birds? No. Though, even on the side they do often have a tilt toward frontal in a lot of predatory birds. It could be argued…

    Reptiles? No.

    Amphibians? No. There’s no even trying to place rules on that optical chaos.

    Mammals? Yeah, pretty much. Can’t think of an outlier but I’m sure there’s plenty of obvious ones.

    Edit’ Ah, there we go. Of course marine mammals are an exception. But back in land, as too are llamas. Makes you wonder…what are the llamas plotting?







  • SQL enjoyer?

    Every time I use it I feels like I’m going back to the 90s. No variables, no functions; Oh but you can do a CTE or subquery…👍

    UNION ALL, UNION ALL, UNION ALL… “There’s got to be a better way, surely…”

    looks up better way

    “Oh, what the fuck?!.. Nope, this will just be quicker…” UNION ALL, UNION ALL, UNION ALL…

    Join in a table sharing column names… Everything breaks. You gotta put the new prefixes in front of all the headers you called in now. In every select, in every where, etc… Which is weird because that kinda works like a variable and it’s fine…

    “When you see this little piece of text, it means all this, got it?”

    “Okay. Yep. Easy.”

    “So why can’t you do that with expressions?”

    SQL SCREAMS MANICALLY

    “Okay, okay, okay!.. Jesus…”

    And then you try put a MAX in a where and it won’t let you because you gotta pull all the maxes out in their own query, make a table, join them in, and use them like a filter…

    I hate it. It has speed, when you can finally run the script, but everything up to that is so…ugh.


  • saltesc@lemmy.worldtoxkcd@lemmy.worldxkcd #3169: EPIRBs
    link
    fedilink
    English
    arrow-up
    4
    ·
    13 天前

    Registration Status: Registered.
    Beacon Type: EPIRB.
    406MHz GPS (Cat. 2) 66-channel. Beacon Status: Operational.
    Battery Expiry Date: 01/10/2028.

    It’s UIN—which I obv won’t give lol— doesn’t hold an MMSI. The main reason being EPIRBs aren’t just for marine craft.


  • saltesc@lemmy.worldtoxkcd@lemmy.worldxkcd #3169: EPIRBs
    link
    fedilink
    English
    arrow-up
    20
    ·
    14 天前

    I have a handheld one—to float with me in a liferaft, etc—and it gets registered to a vessel or vehicle. Whenever I want to use it on something different, contact the federal government, advise of the new vessel ID or vehicle registration, and it’s now associated with the new one.

    I don’t think it matters much since it is a beacon after all, but I think it helps in searching. Also, a lot of other details are registered along with it so they know who to send the tens of thousands in fines to if I somehow bypass all three “Are you really sure?” switches and fire the thing off inappropriately.



  • Also, be aware that if it is debit and not credit card, it can take quite a while for the hold to come off. This isn’t on the gas station, it’s on how quickly your bank handles them. My bank it’s around 2-3 business days, but I know some it can be up to four weeks. Granted, this is my experiences in Asia and around Europe, but wouldn’t be surprised if it’s the same in the US.

    If you think that’s the case, confirm with your bank before you using it and accidentally end up with a few hundred on your account just stuck there for a while.



  • First of all, wash your sheets if you aren’t doing it regularly. Then have a quick look around fo mould. Lastly, minimise laundry left on the floor and vacuum more if they’re carpeted. A third of our time is in our bedroom, so things can get blocked up if stuff is in the air.

    If that’s all good, okay, time to start considering the cat 🥺 The most common allergy is from their saliva on themselves from cleaning, or skin falling off from cleaning. If they’re cleaning themselves in your bed or shortly before coming into bed, that’s most likely it.


  • The article is only referring to per device keys and passkeys that lock them on that device. In other words, someone would need to be able to get your device’s key, decrypt it or brute your passkey, spoof or steal your device somehow, and send the key under it’s identity. I’m sorry, but I don’t think the few people that could do that would be wasting their time to do it to little old you. For most people, their insignificance is the best security they have.