Author Archives: Gordon Olsson ALS (Hon.Life)
THE SURVEY OF THE ALBERTA-BRITISH COLUMBIA BOUNDARY 1913-1924
For territorial limits of First Nations or geographical limits of sparsely settled land, a boundary...
14
May
May
3. Gunter’s Chain – a legacy of three centuries
Imagine designing something that would be used for three centuries. That is what Edmund Gunter...
06
Sep
Sep
2. Circumferentors – Made in Canada before Confederation
Circumferentors were used to survey Canadian settlements and international boundaries during the 1800s. They were...
26
Aug
Aug
1. Sextant and Artificial Horizon
Sextants, developed in the 17th Century were used until the 20th Century to determine the...
25
Aug
Aug