| |
KF5JRV > TECH 15.04.16 13:26l 14 Lines 807 Bytes #999 (0) @ WW
BID : 1550_KF5JRV
Read: GUEST
Subj: Water Clock
Path: IW8PGT<IZ3LSV<F1OYP<F4DUR<CX2SA<GB7CIP<N0KFQ<KF5JRV
Sent: 160415/1119Z 1550@KF5JRV.#NWAR.AR.USA.NA BPQ1.4.65
The water clock is the oldest (and possibly simplest) known timekeeping
device, dating back to 16th century B.C. Babylon. These clocks used
the steady flow of water to keep track of time. A large bowl or
container would be filled with water and allowed to slowly drain from
a spout on the bottom. The inside of the bowl was marked with the
times, and you could determine how much time had passed by the water
level in the bowl. You could also place a second bowl beneath the
spout and measure the amount of water that accumulated.
However, the design had one major issue: the water flowed more slowly
as the bowl emptied. This was the result of a decrease in pressure
as the weight of the water in the bowl decreased. Toward the end,
the water barely trickled and no longer kept accurate time.
Read previous mail | Read next mail
| |
