catch22@programming.dev to What is this thing?@lemmy.worldEnglish · edit-23 months ago[Solved] Anyone know what this is? They are embedded in the sidewalks around the cityprogramming.devimagemessage-square39fedilinkarrow-up1167arrow-down14file-text
arrow-up1163arrow-down1image[Solved] Anyone know what this is? They are embedded in the sidewalks around the cityprogramming.devcatch22@programming.dev to What is this thing?@lemmy.worldEnglish · edit-23 months agomessage-square39fedilinkfile-text
minus-squareDaemon Silverstein@thelemmy.clublinkfedilinkEnglisharrow-up73·3 months agoA marker point for geodetic marking. Also known as triangulation station or trigonometrical point, it’s fixed to the ground with its known coordinates.
minus-squarecatch22@programming.devOPlinkfedilinkEnglisharrow-up14·3 months agoCool! Interesting, I thought True North meant that they somehow pointed north given another reference. Thanks for the info.
minus-squareMaeve@kbin.earthlinkfedilinkarrow-up5arrow-down5·3 months agohttps://www.rmg.co.uk/stories/topics/true-north-magnetic-north-whats-difference
![[Solved] Anyone know what this is? They are embedded in the sidewalks around the city](https://programming.dev/pictrs/image/17e2a431-e194-46bc-8e69-34c6419ac8da.jpeg){kind=link}
A marker point for geodetic marking. Also known as triangulation station or trigonometrical point, it’s fixed to the ground with its known coordinates.
Cool! Interesting, I thought True North meant that they somehow pointed north given another reference. Thanks for the info.
https://www.rmg.co.uk/stories/topics/true-north-magnetic-north-whats-difference