a history of surveying most images have been provided by ken allred, als, cls and patrick ringwood,...
TRANSCRIPT
A History of Surveying
A History of Surveying
Most images have been provided by Ken Allred, ALS, CLS and Patrick Ringwood, BCLS, CLS
From Eratosthenes to GPSFrom Eratosthenes to GPS
A History of SurveyingA History of Surveying
Eratosthenes 276 B.C.
I lifted up mine eyes again, and looked, and behold a man with a measuring line in his hand.
Zechariah 2:1
Pythagoras
The Pyramids
Early cadastral records to 3400 BC
Early Egyptian Civilization
Flooding of the Nile
1st Century – 11th Century AD – Compass developed
• Chinese invention - south pointing spoon (lodestone)
• used as a divining tool in the practice of feng shui
• magnetized needles used as direction pointers in the 8th century AD in China
• ca. 850 and 1050 common as marine navigational aids
Philip Turnor & Peter Fidler
Lake Athabasca - 1791
From the book: Canada’s Forgotten Surveyor by Peter Fidler
Technological Revolution
• 1950’s - Geodimeter
– Tellurometer
• 1970’s - Desk Top Computer
– Total Stations
• 1990’s - Geographic Information Systems
• 1990’s - Satellite Positioning Systems
• 2000’s – High Resolution Imagery