2. THE HISTORY OF CLOCKS
The measurement of time since man exists
differentiate the day from the night, the time
the first measurements were made through
astronomical observations and for a long time
the sky was the main instrument of that
measurement.
3. • The ancient Egyptians were
guided by the position of the sun,
which invented the sundial They
employed during the day, the
shadow cast by a gnomon or
style on a surface with a scale to
indicate the position of the Sun in
the diurnal motion. Also invented
the water clock was used at night
they used a clepsydra or water-
filled vessel. Egyptian water
clock, more or less modified,
continued to be the most efficient
instrument for measuring time
over many centuries.
4. The Romans also used a candle where
each fragment consumed was a night
piece worn. Then came "The Sands of
Time" or hourglass operate on the same
physical concept of water clocks, Is let
gravity do flow a set amount of an item
(in this case water sand) to determine
various lengths of time.
5. During the Middle Ages were the ingenious weight-
driven mechanisms. Watches since joined the fast-paced
world of mechanization. In the thirteenth century, at the
edge end of the Middle Ages, appeared the first
industrial machine: the clock. These watches were made
of steel primitive and suffering from the expansion and
contraction caused by temperature changes. Were
inaccurate in a range of 15-30 minutes a day and had to
be adjusted daily. Its initial purpose was to ring the bells
every hour on the towers of castles, churches or
population centers
6. • In the fifteenth century clocks were invented a hand to
mark the hours and in 1505 the German Peter Henlein
blacksmith managed to build mechanical watches so
small that they could be pocketed.
7. • The first watchmaking revolution occurred in
the seventeenth century, when the Dutch
scientist Christiaan Huygens invented the
pendulum clock,
8. • The first wristwatch was made at the request of the
Queen of Naples Maria Carolina of Austria in 1812. This
unique clock made at the whim of the Queen was a
single pocket watch attached or rather mounted on a
bracelet of gold and precious stones. However, the first
wristwatch wrist or rather was a creation of the Brazilian
Alberto Santos Dumont and Louis Cartier in 1901.
9. In 1929, the American watchmaker Marrisson Albin
Warren invented the quartz watch, with an accuracy of
30 to 0.3 seconds per year.
10. In 1957 came the electric wristwatches. The first
electric wristwatch in the world was the Hamilton
Electric
• HUMANITY SINCE CREATED A NUMBER NOT
WATCH AS WE KNOW TODAY.
