• 3 Posts
  • 13 Comments
Joined 1 year ago
cake
Cake day: June 18th, 2023

help-circle


  • I’m a bit doubtful of the animation they show in the article. There are active continental rift zones in East Africa and Asia, at lake Baikal, which doesn’t show any movement during the animation. The San Andreas fault isn’t shown having any movement in the animation either. Additionally, Europe and Africa are currently moving away from North and South America, but change direction in the animation so the four continents come together without explanation of data suggesting the direction reversal.

    It seems like this is a “what if?” sort of thought experiment as opposed to based on actual data. I mean, even current direction of plates could change tomorrow in an unpredictable way, so there’s no knowing either way.

    Not that it really matters in any case.


  • Thanks for the vids. I’m not sure “water is good for concrete, or doesn’t care” is accurate. In a controlled environment that may be true, however with corrosion from polluted rain (the lime in concrete is dissolved with acid rain), expansion and contraction (especially with freeze thaw cycles), and biological processes that may be encouraged to grow in damp conditions, water is pretty bad for concrete; these are examples of what I’ve encountered that caused degrading concrete structures.

    That said, I was thinking about it more and things like dams and drilled t shaft concrete piles are obviously exposed to constant water. I’m wondering if what I experienced has to do more with exposure to aerobic and temperature fluctuating environments as opposed to drilled shafts and dams which would be more isolated from those conditions I described above.

    Even if water itself isn’t the primary mode of failure, I guess my point still remains regarding the vegetation of "green"buildings; roots and what not definitely will start to degrade concrete.

    Thanks for the comment, it gave me some points to think about.



  • Lilnino@lemmy.worldtoLemmy Shitpost@lemmy.worldChat GPT
    link
    fedilink
    arrow-up
    7
    arrow-down
    2
    ·
    1 year ago

    I thought “chat” with a hard “t” in French meant “piss”, cat is pronounced “cha”. I was told this by a French speaker when I was talking about a “chat noir” poster, using a hard “t” and they said “you’re sayong black piss! The “t” is silent for cat”.

    Can anyone confirm? I feel this is important for this post, “chat gpt” could mean “piss, I farted”