LOCATION 461 



QUESTIONS 



1. How can all places on the earth be located, east and west? 



2. Chicago has a longitude of about 87 and 35' West. What is 

 the sun time of Chicago when a chronometer giving Greenwich time 

 reads 11 o'clock P.M. What is the train time at Chicago? 



3. What is the difference in time between the train time and the 

 real sun time? 



B 4. If a vessel is at 13 North latitude, 80 East longitude, and 

 the sun time is 5 P.M., what time is it at Greenwich? 



5. If it took you one hour to sail from the Aleutian Islands east 

 of the 180th meridian to west of the 180th meridian, starting on 

 Wednesday at 10 o'clock, what day and what hour would you arrive 

 on the west side? Why? 



6. What would be the difference in your answer if you were west of 

 Baker Island and crossed the 180th meridian in the same length of time? 



7. What causes the sun to seem to rise? 



8. How would you determine the direction north if you were 

 without a compass and the sun were not shining? 



9. Why does not a compass in your town point directly at the 

 north pole? Does it point east or west of the true north? 



10. At what places in the United States would the compass point 

 at the north pole and the north magnetic pole? 



11. Which way does the compass point in Greenland? 



12. In what direction does the compass point in Alaska? 



13. Why is the bowl of a compass made of brass? 



, 14. Why is the use of the north star a better method than the 

 compass for obtaining direction? 



, 15. Of what use would the compass be for an explorer who was 

 going to the North Pole? 



16. How does longitude assist in preventing train accidents? 



17. What time is it at Greenwich now? 

 , 18. What day is it at Greenwich now? 



19. What time is it in China? 

 \ 20. What day is it in China? 



N 21. What time and what day is it at the point of land in Siberia 

 nearest to America? 



