Viewing profile — nobodyknowin
nobodyknowin
HN member- Joined
- Sun, Mar 24, 2024, 3:22 PM UTC
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About nobodyknowin
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Recent public activity
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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…
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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 …
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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…
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Comment #41452228
Yeah his practical engineering is excellent as well.
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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 …
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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.
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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
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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…
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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…
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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…
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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…
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Comment #41115433
[flagged]
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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 …
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Comment #41097832
Does one have to take a test for renewal? Or is it a one and done type thing?
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Comment #40964597
Not if they buy an off-the-shelf solution.
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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…
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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…
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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…
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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…
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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. …
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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…
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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…