Oh no, you!

  • 0 Posts
  • 6 Comments
Joined 1 day ago
cake
Cake day: November 3rd, 2024

help-circle

  • neidu3@sh.itjust.workstoscience@lemmy.world*Permanently Deleted*
    link
    fedilink
    English
    arrow-up
    9
    ·
    edit-2
    5 hours ago

    Price: Don’t remember. I fired off a message to the guys in manufacturing, I’ll let you know if they have a price. We go through quite a few of these annually, so we have a bulk discount when buying them.

    How: Magic, I guess. Also, I found a link to the ones we use: https://www.microchip.com/en-us/products/clock-and-timing/components/atomic-clocks/embedded-atomic-oscillators/csac

    When we prepare for deployment, they’re connected to a docking unit which provides a clock pulse derived from a GPS signal for high precision. Then the battery pack is attached, the subsea unit is assembled, and everything is deployed, usually via ROV. It’s important that it’s kept powered the entire time upon retrieval docking, as we can then calculate a linear drift value and correct for this in the recorded data.

    UPDATE: We bought “Maaaaaaany thousands” of them in 2018, and we paid 1850 USD per chip. Come to think of it, I remember hearing claims back then that we’d bought 75% of the worlds supply.


  • neidu3@sh.itjust.workstoscience@lemmy.world*Permanently Deleted*
    link
    fedilink
    English
    arrow-up
    17
    ·
    edit-2
    4 hours ago

    Some work related trivia I’d like to share with you: My job involves deploying sensors on the seabed to record data. These sensors are battery powered, and rely on highly precise timekeeping to be correct. These devices are synchronized before deployment, and upon retrieval ~2 months later we want none or as little clock drift as possible.

    Tumbleweed sounds

    I’m glad you asked: we achieve this by using CSACs - Chip Scale Atomic Clocks. They are pretty much what the name Implies, and after synchronization it is able to keep the time much better than anything else. Normal clock drift upon retrieval is usually less than a millisecond, and that drift is due to (uninteresting factors not directly related to the CSAC itself)

    CSACs cost a small fortune, but they’re the size of a matchbox and make it all possible. It’s amazing how small atomic clocks can be.


  • Each to their own I’d say, but I’m all for rule bending.

    I’ve always been up front about modding based on what I consider reasonable interpretation of the spirit of the rules combined with common sense. This means that some things that technically should or shouldn’t get deleted gets a treatment it wouldn’t get by strict interpretation of the rules in their literal meaning.

    That being said, my interpretation of the rules may not necessarily conform with those of other mods, so I rarely complain if someone else decides to overrule me.


  • neidu3@sh.itjust.workstoPolitical Humor@lemmy.worldXKCD 2962
    link
    fedilink
    English
    arrow-up
    7
    ·
    edit-2
    15 hours ago

    Yes, even more so than Trump, and that alone is enough to vote for her.

    Source: Myself. I made it up.

    On a more serious note, while I can’t recall her ever mentioning or describing a venn diagram, I can easily imagine her doing so. Trump on the other hand, I’m not entirely convinced he knows what one is.