Say what you will about the past few years, it has produced some useful tools for the surveyor. First, LiDAR technology made it possible to collect high-density 3D data with spectacular speed, so that ...

TN a general text on surveying, as is pointed out by the author of one of these books, there is little room for originality except in treatment. Regarded as a branch of mathematics or as a ...

The Zero Stone is a mark of great triangulation of Survey of India. This triangulation is a modern surveying technique introduced in India by Britishers George Everest, Campbell, and an Indian Nayan ...

This week I return to my series on surveying. Two weeks ago we got as far as revealing the basic idea and magical power of triangulation. This wedding between shape and mathematical proportion ...

Since the first protractors appeared near the turn of the 17th century, around the same time that the technique of triangulation was developed for surveying, their utility for this activity appeared ...

On a glorious sunny June day we reached the summit of Céidín, south of the Glen of Imall, to find a triangulation station or trig pillar. These concrete pillars are found on many prominent peaks ...

A box, room, or device (a darkened enclosure) that has a small hole (an aperture, maybe with a lens) through which light from external objects enters to produce an image on an opposite surface is ...