A sundial is a type of clock that works by using the shadows cast by the sun. The position of the shadow tells the time based on the sundial's design.
The water clock, or clepsydra, was invented after the sundial. It used the flow of water to measure time by marking the passage of hours as the water level decreased.
A sundial.
The first type of clock was called a sundial, and the oldest sundial dates back to around 1500 BC.
It is the sundial.
pin clock
Sundial
The common name for the timekeeping device sometimes known as a shadow clock is a sundial.
Sundial
the clock that was invented with no moving parts is a sundial
its definitely not a clock...or a sundial...its a metronome!
Invention of the pendulum clock