Wobble wobble

Comments

• NobodyElse@sh.itjust.works ⁨1⁩ ⁨day⁩ ago

  I was on the room next to an ultracentrifuge when it went off balance (one of the tubes in it cracked). The outer containment (barely) held, but that’s one of the loudest things I’ve ever heard.

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  • Tar_alcaran@sh.itjust.works ⁨17⁩ ⁨hours⁩ ago

    Nothing quite like the sound of several kilos of solid steel getting turned into confetti

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• ook@discuss.tchncs.de ⁨19⁩ ⁨hours⁩ ago

  Image

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  • nialv7@lemmy.world ⁨18⁩ ⁨hours⁩ ago

    Perfectly balanced, as all things should be.

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• AltheaHunter@lemmy.blahaj.zone ⁨1⁩ ⁨day⁩ ago

  I once had the inner lid of a microcentrifuge (one of the plastic ones with a snap-like closure) pop off mid-spin. It shot upward with enough force that it knocked the fully latched upper lid open and then shot across the room like a frisbee. Luckily it just hit some shelves and landed on the floor so nobody was hurt but it scared the shit out of me.

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• gilindoeslemmy@lemmy.world ⁨1⁩ ⁨day⁩ ago

  I don’t get it. Can someone explain?

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  • clif@lemmy.world ⁨1⁩ ⁨day⁩ ago

    First frame isa centrifuge that spins samples at high speed to separate the components in them (I think that’s the purpose, not a scientist).

    I hear that if it’s unbalanced, bad things happen, because you’re not spinning an unbalanced rotor at high speeds.

    I honestly was coming to check the comments to see if anyone had experience with it so I could ask how bad it is.

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    • Eheran@lemmy.world ⁨1⁩ ⁨day⁩ ago

      The centrifuge would not run like that, it noticed the vibrations and turns off. They had that “feature” for decades now.

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    • TonyTonyChopper@mander.xyz ⁨17⁩ ⁨hours⁩ ago

      to separate the conponents

      Scientist here. That’s what it’s for. A centrifuge makes the tubes experience very high accelerations, like 100 times the force of gravity, to separate liquids and solids by density. For example you could put blood in there and get a layer of red blood cells and a layer of plasma stacked on top of each other.

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    • usualsuspect191@lemmy.ca ⁨1⁩ ⁨day⁩ ago

      The funeral depicted is a viral video where the pallbearers are dancing/swaying so it’s like you’ll die and even your casket will be moving afterwards.

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    • FairycorePhoebe@lemmy.blahaj.zone ⁨1⁩ ⁨day⁩ ago

      I work in a lab. I’ve seen centrifuges try to walk off the counter before.

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    • Triumph@fedia.io ⁨1⁩ ⁨day⁩ ago

      I thought it was a birth control pill box.

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    • SoleInvictus@lemmy.blahaj.zone ⁨1⁩ ⁨day⁩ ago

      It depends on the speed and size of the centrifuge, the mass of the load, and the magnitude of the imbalance. Someone else mentioned an ultracentrifuge, typically a large, washing-machine-like device that can spin larger loads at high velocity. The amount of energy released if they become significantly unbalanced is pretty huge: they have a containment layer, but some could kill you if the load got through and hit you.

      On the flip side, I may have intentionally ran unbalanced microcentrifuges a few (many, it was many) times as a grad student because I was too tired and lazy to make a counterweight. I just held it down with fairly firm pressure and it was fine. That’s not very good for its bearings, though. Sorry lab manager!

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    • atomicbocks@sh.itjust.works ⁨1⁩ ⁨day⁩ ago

      I’m not sure about the more classic devices but a lot of game controllers and phones these days use linear motors or similar piezoelectric devices for vibration. For instance Apple’s “Taptic Engine”.

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  • ZkhqrD5o@lemmy.world ⁨19⁩ ⁨hours⁩ ago

    1. Remove the counterweight from your washing machine.
    2. Throw said counterweight inside the washing machine.
    3. Activate the spin cycle of your washing machine.
    4. Find out.

    :)

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  • natecox@programming.dev ⁨1⁩ ⁨day⁩ ago

    Folks reading way too much into this lol.

    The meme is from a music video with a strong percussive beat; not unlike an off balance centrifuge.

    The music video: youtu.be/j9V78UbdzWI

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    • nagaram@startrek.website ⁨1⁩ ⁨day⁩ ago

      Folks reading way too much into this lol.

      reads too much into it

      The joke is they died!

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  • 413j0@lemmy.dbzer0.com ⁨1⁩ ⁨day⁩ ago

    Unbalanced centrifuge, IRL a small tabletop one like the image will just be a really expensive mistake, but the worst case scenario can indeed be lethal. Here is a larger one exploding www.youtube.com/watch?v=i8IOL5iLwG8&t=40

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    • crank0271@lemmy.world ⁨1⁩ ⁨day⁩ ago

      Crazy video… can you remove the timestamp? 40s shows the aftermath.

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  • jonathan@piefed.social ⁨1⁩ ⁨day⁩ ago

    https://www.youtube.com/watch?v=EroOICwfD3g

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• lvxferre@mander.xyz ⁨1⁩ ⁨day⁩ ago

  Nor in the pic: the lab technician going to jail for murder. Or the broken centrifuge.

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• Evil_Shrubbery@thelemmy.club ⁨1⁩ ⁨day⁩ ago

  Y’all don’t sit in your centrifuges?
  ( ͡° ͜ʖ ͡°)

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• LillyPip@lemmy.ca ⁨1⁩ ⁨day⁩ ago

  My thought at the first panel was ‘welp, time for the Motrin’. Then ‘ohhh’.

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  • Modern_medicine_isnt@lemmy.world ⁨17⁩ ⁨hours⁩ ago

    I saw birth control -> baby scale -> death. I was like wtf. Lol.

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    • LillyPip@lemmy.ca ⁨12⁩ ⁨hours⁩ ago

      That’ll happen when you set the baby scale to 13,200 rpm.

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  • adhocfungus@midwest.social ⁨1⁩ ⁨day⁩ ago

    That’s exactly what I thought too. I had to stare at this one for a while to get it.

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  • clif@lemmy.world ⁨1⁩ ⁨day⁩ ago

    I thought it was the same thing in the first frame : D

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    • LillyPip@lemmy.ca ⁨1⁩ ⁨day⁩ ago

      Panel 3 makes sense both ways. x_x

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