Chosun Juan
Given to Fly
Lee, note that often the field characteristics sometimes aren't symmetrical about the horizontal axis through the centre of the view (usually great care is taken to ensure symmetry about the vertical axis) - this is further complicated when field curvature is taken into account which can affect the perception of the view leading back towards one's feet or whatever.
Areas are often involved with circling raptors, surfacing critters etc, but we relate the 'feel' of that to a linear distance then generated into a circle. That's the great thing about circles - they're as high as they are wide ! :-O
The reason that the linear width is so often referenced is that people can get a reasonably accurate 'feel' for it - relating to the size of football fields, or olympic swimming pools, cars, height of a human etc. The beauty of that is that it can then be related back to closer distances by triangulation. ie. (3 olympic pools) 150m @1km, 15m @100m, (length of a car) 5m @33m, (height of your nanna)1.5m @10m, etc :cat:
Besides that tangible 'feel', it's just a whole lot easier to measure - ever tried to get a tape to stand straight up 150m in the air ?! 3
Chosun :gh:
Areas are often involved with circling raptors, surfacing critters etc, but we relate the 'feel' of that to a linear distance then generated into a circle. That's the great thing about circles - they're as high as they are wide ! :-O
The reason that the linear width is so often referenced is that people can get a reasonably accurate 'feel' for it - relating to the size of football fields, or olympic swimming pools, cars, height of a human etc. The beauty of that is that it can then be related back to closer distances by triangulation. ie. (3 olympic pools) 150m @1km, 15m @100m, (length of a car) 5m @33m, (height of your nanna)1.5m @10m, etc :cat:
Besides that tangible 'feel', it's just a whole lot easier to measure - ever tried to get a tape to stand straight up 150m in the air ?! 3
Chosun :gh: