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nobodyknowin

HN member
Joined
Sun, Mar 24, 2024, 3:22 PM UTC
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22 items

About nobodyknowin

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Recent public activity

  1. comment
    Comment #43816211

    I saw a local agency demo their use of the pirate box for Wildland firefighting. They had a GIS team working on mapping updates to fire lines, cut lines, dozer paths, crew assignme…

  2. comment
    Comment #42832030

    The manufacturing of H2 from CH4 is one thing that really bothers me about the whole concept. We have CH4 cars today, and an infrastructure in place. It should be expanded and tbh …

  3. comment
    Comment #41788725

    Exactly. The old ones were basically passive cleaners. The modern ones are full on inspection tools with cameras, magnometers, etc. We have a natural gas line running through one o…

  4. comment
    Comment #41452228

    Yeah his practical engineering is excellent as well.

  5. comment
    Comment #41452081

    Pretty cool! One thing that fascinated me working for a sanitation district was that we had some huge pumping stations like this, but hiding in plain sight. There would be a metal …

  6. comment
    Comment #41439412

    Any time! I enjoyed the work, and I also got to work on closed sites which always made for pretty fun days as one was an isolated area and another was a golf course.

  7. comment
    Comment #41438657

    And in the US we have plenty of open land to place them. I understand places like Japan wanting to find alternative means

  8. comment
    Comment #41438492

    It might even be sooner than that. Once oil gets too expensive to pull out the the ground, mining plastic from landfills and decomposing it back to the hydrocarbons might end up bi…

  9. comment
    Comment #41438426

    It wasn't so much the substances, more the moisture. A wet environment is much better for ch4 generation (was my understanding). So we had an area that we called "the galleries" wh…

  10. comment
    Comment #41438204

    I really enjoyed my time working at a medium sized landfill as their surveyor and civil tech. The engineering discussion in the article is spot on. We chose to reinject most of our…

  11. comment
    Comment #41420179

    We do the same concept in night diving. Set a glow stick with a pie tin low, and another high behind and above it. Then when you come up from the dive you can see which way you nee…

  12. comment
    Comment #41115433

    [flagged]

  13. comment
    Comment #41098589

    Thank you for your response. I did get my novice license (or whatever the lowest license is called) but never got an old borrowed radio to actually transmit. Then life kind of got …

  14. comment
    Comment #41097832

    Does one have to take a test for renewal? Or is it a one and done type thing?

  15. comment
    Comment #40964597

    Not if they buy an off-the-shelf solution.

  16. comment
    Comment #40964381

    Not GP but modern GPS / GNSS manufacturers intentionally do not allow their devices to function over some speed (1000 mph or something like that). So they won't work on warheads as…

  17. comment
    Comment #40826457

    Mine are the used car dealers that have every make and model ever created (or maybe just the 1500 most popular) in every description. On cars that aren't even close. So even if you…

  18. comment
    Comment #40227626

    Basically yeah, it take legislation. Like the Civil rights act immediately struck down all of the racist covenants (that still exist but are unenforceable). So maybe a municipal ac…

  19. comment
    Comment #39812654

    >It's a dry reading that can be fascinating at the same time. I'm a surveyor by trade and you hit the nail on the head. One of my favorite parts about this stuff is the history, an…

  20. comment
    Comment #39807880

    Yep the monuments on the plates here in USA have actual published velocities. Which means yo can model what the coordinates should be after some previous survey and go check them. …

  21. comment
    Comment #39807868

    Surveyors reference monuments on the ground. Since tectonic plates tend to move together then so so short lines and their corners. It can get complicated on large tracts or lengths…

  22. comment
    Comment #39807797

    It's based on a center of mass point of the earth. The system is an example of an "ECEF" or Earth Centered Earth Fixed system. Good writeup here - https://en.m.wikipedia.org/wiki/E…