The document discusses the history and types of clocks. It defines a clock as an instrument used to tell time. Ancient Egyptians were the first to use sundials, while the first person to construct a pocket clock was Pedro Bell. There are different types of clocks including wristwatches, chronometers, pocket clocks, and electronic clocks. Water clocks and sundials were early methods to measure the passage of time before more modern clock designs.

1. The Clock

2. Index Definition History Typs of clocks

3. Definition We denominete the clock like an instrument that permits to now the time. There are many tips : 1º Is to now the hour actual like the pocket clock. 2º To measure the time like the chronometer. 3º To activate one alarms in certain hour like the alarm clock.

4. History The egipcian were the first in use the the sun clock. The first person was Tucho Brahe . The clock water is a clock that he measures the time that he takes to go to another container. The first person who construct the pocket clock was Pedro Bell.

5. Sun Clock

6. Water Clock

7. Types Wristwatches Chronometer Pocket clock Electronic clock