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KF5JRV > TECH 19.10.16 13:21l 13 Lines 693 Bytes #999 (0) @ WW
BID : 3847_KF5JRV
Read: GUEST
Subj: Clocks
Path: IW8PGT<CX2SA<N0KFQ<KF5JRV
Sent: 161019/1116Z 3847@KF5JRV.#NWAR.AR.USA.NA BPQK6.0.13
Clocks
Clocks were invented in different parts of the world, but it was
the Egyptians that introduced the concept. The most popular one is probably
the sun clock where the shadow made by the sun is used to judge what time of
day it is. You’ve probably heard of them before as obelisksö.
But what happens if the sun is gone? That’s where the water clock comes in.
The Ancient Egyptians created them to tell time at night. It works like an
hourglass where water drips down at a predictable rate and time is told
depending on the level of liquid. The invention of the clock also gave way to
other inventions such as the 365-day calendar we use today and even the
concept of leap years.
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