Lab 5

how many miles separate Washington, D.C. and Afghanistan when crossing the Atlantic?
      Line measurement (Geodesic)
Segment: 100.364186 Decimal Degrees
Length: 100.364186 Decimal Degrees
       Line measurement (Loxodrome)
Segment: 117.407591 Decimal Degrees
Length: 117.407591 Decimal Degrees
       Line measurement (Great Elliptic)
Segment: 100.364268 Decimal Degrees
Length: 100.364268 Decimal Degrees

conformal
- mercator
Line measurement (Planar)
Length: 10,121.434879 Miles

Line measurement (Geodesic)
Segment: 6,934.478105 Miles
Length: 6,934.478105 Miles

-stereographic
Line measurement (Geodesic)
Segment: 6,934.478105 Miles
Length: 6,934.478105 Miles

Line measurement (Planar)
Segment: 9,878.038997 Miles
Length: 9,878.038997 Miles

equal area
-cylindrical equal area
-Eckert IV


     There are so many types of map projections. It can be confusing deciding which to use because it all depends on what will help answer one's questions most appropriately. It was kind of interesting to see how many options of map projections there are. Some can be more helpful than others. For example, I realized that a reason for why the mercator map is more commonly used is because it both is conformal and equidistant. This can be an advantage because one can acquire more information from a single map rather than having to deal with two or three or more maps simultaneously.
     It was kind of confusing when trying to figure out the maps and how to measure from Kabul to Washington DC. Mostly because it was unclear that to measure in miles the settings where to be changed in the tool settings not the data frame settings.