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Answers for “A chronicle of time keeping” with Explanation

Question 1-4:
1. D (para D, last three lines: “satisfactorily around the Mediterranean, they could not
always be depended on in the cloudy and often freezing weather of northern Europe.”

2. B (para B, line 2-4: “social impact. And, for those living near the equator in particular, its
waxing and waning was more conspicuous than the passing of the seasons.”)

3. F (para F, last three lines: “the changing tension of its mainspring. By the 16th century, a
pendulum clock had been devised, but the pendulum swung in a large arE and thus was
not very efficient.”)

4. E (para E, line 7-9: “: Italian hours began at sunset, Babylonian hours at sunrise,
astronomical hours at midday and „great clock‟ hours, used for some large public clocks
in Germany, at midnight.”)

Question 5-8:
5. B (para C, first 2 lines: “Centuries before the Roman Empire, the Egyptians had
formulated a municipal calendar having 12 months of 30 days”)

6. F (para E, last 2 lines: “these were superseded by ‟small clock‟, or French, hours, which
split the day into two 12-hour periods commencing at midnight.”)

7. D (para G, first 3 lines: “To address this, a variation on the original escapement was
invented in 1670, in England. It was called the anchor escapement, which was a leverbased device shaped like a ship’s anchor.”)

8. A (para E, line 8-9: “astronomical hours at midday and „great clock‟ hours, used for some
large public clocks in Germany, at midnight.”

Question 9-13:
9. (ship‟s)anchor/(an/the) anchor
10. (escape) wheel
11. tooth
12. (long) pendulum
13. second

(para G, line 2-10: “invented in 1670, in England. It was called the anchor escapement,
which was a lever-based device shaped like a ship’s anchor. The motion of a pendulum
rocks this device so that it catches and then releases each tooth of the escape wheel, in
turn allowing it to turn a precise amount. Unlike the original form used in early pendulum
clocks, the anchor escapement permitted the pendulum to travel in a very small arc.
Moreover, this invention allowed the use of a long pendulum which could beat once a
second and thus led to the development of a new”)

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