gtfoutttt
Joined 6 years ago
Joined 6 years ago
GNSS can technically get down to mm accuracy but that typically requires static sites with lots of data.
[0] https://en.m.wikipedia.org/wiki/Real-time_kinematic_position...
I think what is fascinating about this space is that the tech is there for full 3d models, machine control, and BIM smart design.
It's all just so expensive, only the huge companies get deep into all of it. As a PLS, we've been delivering site topos for decades with full 3d surfaces, only to deliver those to the engineers and after design they print out a plan set.
Normally for "sidewalk concrete" that binder is an ingredient called "Portland cement", and the final product is "Portland cement concrete" or P.C.C. Probably the stuff your friend is working with.
For road paving, often referred to as black-top, the binder is Asphalt, and that is called "Asphaltic Concrete," or A.C.
And of course these terms might be local as well, this is what we call them in Southern California.
But the fact that the smaller company doesn't computer control and errs on the side of caution is a great illustration of the difficulty of working in this space. And that 10 miles can make a difference. I believe it!
For large road projects in the boonies they typically have to build concrete mixing plants on site! The look like a collection of huge round tank-style trailers tilted upright and assembled all together.
Edit - spelling.
This is to replace the original PAGES software, which was written in Fortran. M-PAGES is able to process GNSS baselines using all the new satellite systems, as opposed to only GPS.
Edit - my understanding is they chose that language for good extensibility.
But if it's a smaller area typically it's not worth using a drone and we'd use a terrestrial scanner like a Faro.
Edit - spelling.
They've been digitizing the collection as well, coming out the with annual digests.
If you still like paper a lifetime subscription is surprisingly reasonable. I subscribed about 20 years ago and have definitely gotten my money's worth.
However it's kinda iffy buying one that you can't actually test first. It's been too long since I've purchased anything on eBay so I don't know what the return policies are.
The guy at the show mentioned "always test the _one_ slider. Those go first"
Edit- spelling
Do you know if there's any of these calculators still around and available to purchase? I've always wanted to get my hands on a curta but One of these would be awesome too.
Well said. I disagree with the article title, due to my experience with delivering pizza.
We all certainly knew the non-tippers. And they almost always were in the wealthiest neighborhoods. So once you go to a house 3 or 4 times, and get stiffed (or hear about it from the other drivers), they become your lowest priority.
Working class and poor neighborhoods almost always got better service and faster food delivery from us because we knew they tipped more often. The non tippers typically ended up with cold pizza and dropped 2 liters cause we didn't give a crap.
This was paced.