Ajanmittausvälineiden
Ajanmittausvälineiden, or timekeeping instruments, are devices used to measure and display the passage of time. The most basic and ancient form of timekeeping is the sundial, which uses the position of the sun to indicate the time of day. Water clocks, also known as clepsydras, were another early method, measuring time by the controlled flow of water. Candle clocks and incense clocks also relied on the gradual consumption of a substance to mark time.
Mechanical clocks, which emerged in the Middle Ages, revolutionized timekeeping. These devices utilize a pendulum or
Modern timekeeping relies heavily on electronic and atomic technologies. Quartz clocks and watches, which use the