It’s a surveyors mark that will form a record point that they can go back to or monitor for change. The centre of the marker is a known point in a 3 dimensional space.
Tiny target practice for flinging stuff at it when you bored. It spins when you hit it! /s
Measuring points for full automatic weapons. We use them very discreetly.
But you will find them in many public spaces.
These weapons need measuring points for calibration.
It is for darts
🤮lten
Oerlikon….?
We had these things on the wall above the road for some time, maybe a year. It was repaired some time after that. I think it is used to measure the angle. Maybe the change of the angle with time.
Flat earth checking device
target for drunk pissing at night
Target for a theodolite
Lasertag
ist für die Messung ob Verschiebungen stattgefunden haben ist in jedem bahnhof sichtbar
5g reflektors
It’s a Bireflex Target, also known as a surveying prism or reflective laser.
16 comments
Markers to do measuring.
Olten
It’s a surveyors mark that will form a record point that they can go back to or monitor for change. The centre of the marker is a known point in a 3 dimensional space.
Tiny target practice for flinging stuff at it when you bored. It spins when you hit it! /s
Measuring points for full automatic weapons. We use them very discreetly.
But you will find them in many public spaces.
These weapons need measuring points for calibration.
It is for darts
🤮lten
Oerlikon….?
We had these things on the wall above the road for some time, maybe a year. It was repaired some time after that. I think it is used to measure the angle. Maybe the change of the angle with time.
Flat earth checking device
target for drunk pissing at night
Target for a theodolite
Lasertag
ist für die Messung ob Verschiebungen stattgefunden haben ist in jedem bahnhof sichtbar
5g reflektors
It’s a Bireflex Target, also known as a surveying prism or reflective laser.
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