What prevented explorers like Christopher Columbus from finding ...

[karateprodigy]

What prevented explorers like Christopher Columbus from finding precise longitude?
  a. Calculations necessary for determining longitude
  b. The lack of accurate pendulums
  c. A durable and precise clock
  d. Longitude was not the issue, latitude was the problem

Question 2

Who led a fleet of at least 317 during the dark ages?
  a. Bjarni Herjulfsson
  b. Prince Henry
  c. Admiral Zheng He
  d. Christopher Columbus

[mammy1697]

Answer to Question 1

ANS: C
The key to longitude problem was the invention of a sturdy clock that remained consistent during
weather changes that would occur while at sea. Prior to the chronometer, clocks were propelled by the
use of a pendulum which was not practical at sea. Information can be found in the section Voyaging
Combined with Science to Advance Ocean Studies

Answer to Question 2

ANS: C
Admiral Zheng He led this great fleet with approximately 27,000 men. They explored the Indian
Ocean, Indonesia, and traveled around the tip of Africa. Information can be found in the section
Understanding the Ocean Began with Voyaging for Trade and Exploration.

[karateprodigy]

Thanks

[mammy1697]

Welcome