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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter 9: Hands on Heaven's Clock.

Multiple Choice Questions

1. What did Harrison build that still function today?
(a) Telephones.
(b) Clocks.
(c) Microscopes.
(d) Telescopes.

2. How was John Harrison educated?
(a) He went to Oxford.
(b) He had no formal education.
(c) He learned alongside Newton.
(d) He attended elementary school in his town.

3. Describe the relationship between Harrison and the Royal Academy of Astronomers.
(a) They were friends.
(b) They were financial backers.
(c) They were colleagues.
(d) They were enemies.

4. What did Hadley and Godfrey invent?
(a) A working clock.
(b) A method to calculate lunar distance.
(c) A celestial navigation map.
(d) A working telescope.

5. How old was Harrison when he built his first pendulum clock?
(a) 55.
(b) 40.
(c) 25.
(d) Less than 20.

Short Answer Questions

1. In the Whiston-Ditton proposal, what did they hope to be exempt from?

2. Huygen's clocks went on a number of voyages. On the third voyage to the Cape Verde Islands, what did his clock do?

3. What did Humphrey Ditton propose to use to solve the longitude problem?

4. When did Harrison learn of the Longitude Prize?

5. What does the coiled balance spring do in clocks?

(see the answer key)

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