Geodesy is a field of study that deals with the measurement and representation of the Earth, and it all started when a clever human named Eratosthenes discovered that you could measure the circumference of the Earth by looking down a well. Over time, the field of geodesy has expanded and evolved dramatically, and NASA uses technology like radio telescopes, ground surveys, and satellites to contribute! Learn more about geodesy in this video! This video is public domain and can be downloaded at: http://svs.gsfc.nasa.gov/goto?10910
This Land Surveying Video collection has been an ongoing collaborative effort by all members of the community since 2010. Our goal is to provide a place where you can learn something new about land surveying everyday!
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