this post was submitted on 08 Sep 2024
164 points (97.7% liked)

What is this thing?

5550 readers
16 users here now

Let us help you identify that mysterious object you’ve found.

Currently in CHALLENGE mode: If you've got something obscure knocking about, post a picture, and let's see how we do. Please prefix such posts with "CHALLENGE:" so we know we've got a fighting chance.

founded 1 year ago
MODERATORS
mykl@lemmy.world
164
[Solved] Anyone know what this is? They are embedded in the sidewalks around the city (programming.dev)
submitted 2 months ago* (last edited 2 months ago) by catch22@programming.dev to c/whatisthisthing@lemmy.world
39 comments fedilink hide all child comments
 

Any ideas?

you are viewing a single comment's thread
view the rest of the comments
[–] dsilverz@thelemmy.club 73 points 2 months ago (1 children)

A marker point for geodetic marking. Also known as triangulation station or trigonometrical point, it's fixed to the ground with its known coordinates.

[–] catch22@programming.dev 14 points 2 months ago (1 children)

Cool! Interesting, I thought True North meant that they somehow pointed north given another reference. Thanks for the info.