48
Chapter 2 Where in the Geospatial World Are You?
then select Properties. The coordinates will be changed to Degrees,
Minutes, and Seconds (DMS). Answer Question 2.1. Close the White
House placemark dialog box.
Question 2.1 What are the coordinates for the White House in Degrees,
Minutes, and Seconds?
9. Decimal degree coordinates for the Lincoln Memorial are: 38.889257,
−77.050137. Use the Fly To box to zoom to these coordinates. Once GE
arrives there, put a placemark at that spot, name it Lincoln Memorial,
and answer Question 2.2.
Question 2.2 What are the coordinates for the Lincoln Memorial in
Degrees, Minutes, and Seconds?
10. Adjust the view so you can see both placemarks at the edges of the view.
Select the Ruler tool and compute the distance between the White
House and the Lincoln Memorial (see Geospatial Lab Application 1.1 for
the use of the Ruler tool in measurements). Answer Question 2.3. Turn
off the placemark for the Lincoln Memorial when you’re done.
Question 2.3 According to GE, what is the distance between the White
House and the Lincoln Memorial?
11. For such a short distance (as between the White House and the Lincoln
Memorial), there should be little differences in measurements, so let’s
look at some larger distances.
12. Buckingham Palace (in London, England) is located at the following
coordinates: 51.500821, −0.143089. Use the Fly To box to zoom to
these coordinates. Once GE arrives there, put a placemark at that spot,
name it Buckingham Palace, and then answer Question 2.4.
Question 2.4 What are the coordinates for Buckingham Palace in Degrees,
Minutes, and Seconds?
13. Zoom out and rotate the view so that you can see the placemarks for
the White House and for Buckingham Palace in the same view. Use the
Ruler to compute the distance between these two locations. Answer
Questions 2.5 and 2.6. Close the Ruler dialog when you’re done. Of
course, this is a rough estimate of being able to place the start of the
ruler and the end point of the ruler directly on top of the placemarks,
given the scale of the view.
Question 2.5 According to your measurement in GE, what is the computed
distance (in miles) between the White House and Buckingham Palace?
Question 2.6 Why is the line curved rather than a straight line? What kind
of distance is being computed here?
14. We’ll now check your measurements using a Web utility. Open your Web
browser and go to http://www.chemical-ecology.net/java/lat-long.
htm. This Website enables you to compute the surface (real-world)
Chapter 2 Where in the Geospatial World Are You?
then select Properties. The coordinates will be changed to Degrees,
Minutes, and Seconds (DMS). Answer Question 2.1. Close the White
House placemark dialog box.
Question 2.1 What are the coordinates for the White House in Degrees,
Minutes, and Seconds?
9. Decimal degree coordinates for the Lincoln Memorial are: 38.889257,
−77.050137. Use the Fly To box to zoom to these coordinates. Once GE
arrives there, put a placemark at that spot, name it Lincoln Memorial,
and answer Question 2.2.
Question 2.2 What are the coordinates for the Lincoln Memorial in
Degrees, Minutes, and Seconds?
10. Adjust the view so you can see both placemarks at the edges of the view.
Select the Ruler tool and compute the distance between the White
House and the Lincoln Memorial (see Geospatial Lab Application 1.1 for
the use of the Ruler tool in measurements). Answer Question 2.3. Turn
off the placemark for the Lincoln Memorial when you’re done.
Question 2.3 According to GE, what is the distance between the White
House and the Lincoln Memorial?
11. For such a short distance (as between the White House and the Lincoln
Memorial), there should be little differences in measurements, so let’s
look at some larger distances.
12. Buckingham Palace (in London, England) is located at the following
coordinates: 51.500821, −0.143089. Use the Fly To box to zoom to
these coordinates. Once GE arrives there, put a placemark at that spot,
name it Buckingham Palace, and then answer Question 2.4.
Question 2.4 What are the coordinates for Buckingham Palace in Degrees,
Minutes, and Seconds?
13. Zoom out and rotate the view so that you can see the placemarks for
the White House and for Buckingham Palace in the same view. Use the
Ruler to compute the distance between these two locations. Answer
Questions 2.5 and 2.6. Close the Ruler dialog when you’re done. Of
course, this is a rough estimate of being able to place the start of the
ruler and the end point of the ruler directly on top of the placemarks,
given the scale of the view.
Question 2.5 According to your measurement in GE, what is the computed
distance (in miles) between the White House and Buckingham Palace?
Question 2.6 Why is the line curved rather than a straight line? What kind
of distance is being computed here?
14. We’ll now check your measurements using a Web utility. Open your Web
browser and go to http://www.chemical-ecology.net/java/lat-long.
htm. This Website enables you to compute the surface (real-world)