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500 BCE
CLEPSYDRA
Mechanism for measuring time by the regulated flow of a liquid into or out of a graduated vessel, thus giving two different types of clocks according to the direction of flow. -
201 BCE
SOLAR CLOCK
This instrument was able to measure the natural time (days, years, lunar phases, etc.) in conventional units (hours, minutes or seconds). -
Mar 6, 900
HOURGLASS
It Is a mechanical instrument used to measure a certain length of time. It has two connected glass bulbs allowing a regulated flow of material, usually fine sand, from the top to the bottom, and only requires the potential energy of gravity for its operation. -
Aug 13, 1267
MECHANICAL CLOCK
It Is a type of watch that uses a mechanical procedure to measure the passage of time, distinguishing itself from those who measure time from a measurable natural phenomenon -
Jun 11, 1524
POCKET WATCH
It Is called the watch that by its small size can be carried in a pocket and usually, it has a chain hanging metallic (gold, silver, nickel) to hold it called leontina. Pocket watches are deprecated, as they have been replaced by the wristwatch. -
PENDOUS CLOCK
They are characterized by using an oscillating weight to measure the time. The advantage of the pendulum to accurately measure time it is a harmonic oscillator: its roll cycles occur at equal time intervals, depending only on their length. The pendulum clock was the most accurate timing system available, so its use became widespread. -
QUARTZ WATCH
It´s an electric watch that has a piece of quartz which generates regular pulses that allows the measurement of time -
DIGITAL WATCH
The operation of these watches is electronic, indicates the time by numbers -
OPTICAL ATOMIC WATCH
An atomic watch is a clock device that uses an electronic transition frequency in the microwave, optical, or ultraviolet region. -
OPINION
Using a watch is the best way to show the personality because by showing the color and the model you can give many options of the person
