Civil Engineering - Surveying - Discussion

I think it's not possible. Anyone, explain this in clearly.

100m radius of curvature means 1/100m of radius which is 1 cm radius of the bubble tube.

What is mean by the radius of curvature?

Explain please.

A bubble tube's glass cover (through which you can see a circle in the middle of the liquid) is typically 100m, where a higher radius means a flatter surface and greater tendency/rate of movement for any tilt or disturbance.

Think of the radius of curvature as "what radius of a circle I would need to generate this kind of curve". For visualization: a 2cm wide marble has a radius of curvature of 1cm, and you are certain that it is very much curved. Meanwhile, in some sense, you can say that flat ground has a radius of curvature equal to R🜨.

I'm just continuing the comments here, and idk if bubble tube is also the same as bubble level in total stations, survey rods, and leveling staffs.