1. THE HISTORY OFCLOCKSNAMES: KARINA LIMALADY
NAYASCUAL2013
2. THE HISTORY OF CLOCKS The measurement of time since man
existsdifferentiate the day from the night, the timethe first
measurements were made throughastronomical observations and for a
long timethe sky was the main instrument of thatmeasurement.
3. The ancient Egyptians wereguided by the position of the
sun,which invented the sundial Theyemployed during the day,
theshadow cast by a gnomon orstyle on a surface with a scale
toindicate the position of the Sun inthe diurnal motion. Also
inventedthe water clock was used at nightthey used a clepsydra or
water-filled vessel. Egyptian waterclock, more or less
modified,continued to be the most efficientinstrument for measuring
timeover many centuries.
4. The Romans also used a candle whereeach fragment consumed
was a nightpiece worn. Then came "The Sands ofTime" or hourglass
operate on the samephysical concept of water clocks, Is letgravity
do flow a set amount of an item(in this case water sand) to
determinevarious lengths of time.
5. During the Middle Ages were the ingenious weight-driven
mechanisms. Watches since joined the fast-pacedworld of
mechanization. In the thirteenth century, at theedge end of the
Middle Ages, appeared the firstindustrial machine: the clock. These
watches were madeof steel primitive and suffering from the
expansion andcontraction caused by temperature changes.
Wereinaccurate in a range of 15-30 minutes a day and had tobe
adjusted daily. Its initial purpose was to ring the bellsevery hour
on the towers of castles, churches orpopulation centers
6. In the fifteenth century clocks were invented a hand tomark
the hours and in 1505 the German Peter Henleinblacksmith managed to
build mechanical watches sosmall that they could be pocketed.
7. The first watchmaking revolution occurred inthe seventeenth
century, when the Dutchscientist Christiaan Huygens invented
thependulum clock,
8. The first wristwatch was made at the request of theQueen of
Naples Maria Carolina of Austria in 1812. Thisunique clock made at
the whim of the Queen was asingle pocket watch attached or rather
mounted on abracelet of gold and precious stones. However, the
firstwristwatch wrist or rather was a creation of the
BrazilianAlberto Santos Dumont and Louis Cartier in 1901.
9. In 1929, the American watchmaker Marrisson AlbinWarren
invented the quartz watch, with an accuracy of30 to 0.3 seconds per
year.
10. In 1957 came the electric wristwatches. The firstelectric
wristwatch in the world was the HamiltonElectric HUMANITY SINCE
CREATED A NUMBER NOTWATCH AS WE KNOW TODAY.