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What country finally recognized Galileo’s ideas about using the “heavenly clock” to determine longitude and gave him credit for them?
Holland
When Galileo was finally recognized for his idea of finding longitude using the “heavenly clock” he was called a _____________ and given a ________ ________.
Genius, gold chain
There are 2 past explorers that were mentioned in this text for using planets and eclipses to determine longitude. Who were they?
Columbus and Vespucci
Who was the famous “Sun King of France”?
King Louis XIV
King Louis XIV offered 2 incentives for anyone who could determine longitude. What were the 2 incentives?
1. (Longitude) Prize 2. Royal Academy of Science
Where was the Royal Academy of Science located?
Paris, France
What was the Royal Academy of Science designed for?
To attract the best and brightest minds from all of Europe
Who invented the pendulum clock?
Christian Huygens
Who first suggested that pendulums be used as time keepers?
Vespucci
Harrison
Huygens
Galileo
The first pendulum clocks were sent all over Europe and they determined the exact latitude and longitude coordinates of cities and towns using what location as their Prime Meridian?
The English Observatory
The Paris Observatory
The Holland Observatory
Greenwich
The most accurate map in the history of the world was located in Paris and drawn on the observatory floor. What was the diameter of this map?
24 ft
What was the drawback of pendulum clocks that made them useless on ships?
They had to be kept perfectly level!
The _________ parliament announced a large money reward to anyone who could invent a time keeping device that wouldn’t lose more than ___ minutes per day, even at Sea.
English, 2
What simple clockmaker devoted his life to making a clock that wouldn’t lose more than 2 minutes per day, even at sea?
John Harrison
There were 2 main parts to Harrison’s clocks. What were they?
1. Spring 2. Trigger mechanism (grasshopper escapement)
What type of energy was stored in the spring in Harrison’s clocks?
Mechanical energy
