eltrain123
@eltrain123@lemmy.world
- Comment on They wouldn't let my comfort dog on the plane 4 weeks ago:
To me, it looks like a combination between the camera zooming in and her turning her hand a little, both making it seem to get larger. I don’t think it’s ai made, but I’m not an expert.
- Comment on How are roundabouts made? 5 weeks ago:
I used to be a surveyor! The tripods have different tools you can put on top.
A ‘level’ is used to look at rod (some distance away) with measurement gradations on it, like a ruler, to add or subtract height from its current position to determine elevation. You can transfer measurements long distances by leap-frogging positions of the level and the rod. If you start or end at a known USGS monument, you can tie into historicity known elevations. This is how elevations were mapped before GPS (but the survey markers are still used today). They have some really fancy auto-levels that read a qr-style barcode and can measure down to very precise heights.
A ‘thedolite’ is a robot-style machine that uses triangulation to determine elevation, distance, and angle. You benchmark it in place so it knows its location, then uses a rod with a prism it can follow. It calculates degrees it turns horizontally and pivots vertically to calculate where you are with the prism. It will automatically guide you to pre-programmed points to lay out very precise locations. Or you can use it to capture really precise points that are in the field. I haven’t been a surveyor in 20years, but they could easily layout points to millimeter accuracy when I was in the game.
We also used lidar scanners to capture ‘as-built’ maps or calculate volumes of material. A lidar scanner shoots out a laser a few 100,000 times a second as the s amber turns on the tripod. When it bounces off an object, it returns a x,y,z coordinate and a color of the object it bounces off of. When you get a few million returned, you get a point cloud that represents the physical area you are mapping. When you move the scanner and repeat the process, you can map out large areas to a pretty high degree of accuracy. We once used a scan of a statue that was built in the 1800s to compare against the weight of construction materials so we could calculate the crane load expected to move it. Pretty cool stuff!
- Comment on Been holding it in 2 months ago:
No creepy and/or murdery reason your date is digging around in his trunk after you’re in the car…
- Comment on How is my bedroom being heated? 2 months ago:
Oooohhhh… no. It was in the flight path for O’hare and very… not nice. Also, I’m from the south and know nothing of building techniques in cold climates. It wasn’t expensive, but didn’t feel unsafe.
- Comment on How is my bedroom being heated? 4 months ago:
I had heated floors in a Chicago apartment. I would lay tomorrow’s clothes on the floor at night and they were toasty warm when I put them on in the morning. Then, I’d put my blanket on the floor when I left for work and it would be nice and warm when I was ready to jump into bed at night.
- Comment on I hate that that happens 7 months ago:
Pig and and, and and whistle.
- Comment on Wow! Doom really can run on anything! 7 months ago:
Let’s just fuck em all up then, right?
- Comment on Wow! Doom really can run on anything! 7 months ago:
The plants still take 6 to 7 years to mature. If you think broadcasting that you can fuck up nopales because they produce paddles annually, you’re not promoting an environment that’s sustainable for the nopales.
You do you… but I think it’s not cool to fuck with them.
- Comment on Wow! Doom really can run on anything! 7 months ago:
Don’t fuck with cacti. They live in an inhospitable place and take years to grow. Prickly pear cacti are more sustainable than other varieties, but still take years to mature. Enjoy them for what they are and leave them alone.
- Comment on Rap Video rule 8 months ago:
… is what we’re livin’ in……