Show us why the public should always call a land surveyor

Where are you surveying?

Jacobs staff stamp 1932

A Jacobs Staff, introduced in 1342. Was used to determine the latitude at sea at which people were located. Because people had to look straight at the sun every day, there were many eye complaints among the navigators.

It was a long bar with the degrees on it and a movable cross arm. Move the human eye on one side of the bar with the cross arm until the lowest part is on the horizon and the highest on the sun or a star.

Read more…
E-mail me when people leave their comments –

You need to be a member of Land Surveyors United - Global Surveying Community to add thoughts!

Join Land Surveyors United - Global Surveying Community

Comment As

You need to be a member of Land Surveyors United - Global Surveying Community to add thoughts!

Join Land Surveyors United - Global Surveying Community

Comments are closed.