Question

How does a sundial work?​

Answer 1

The first sundial built by man is an obelisk that was probably invented in ancient Egypt, and it was used starting around 3,500 BC. With the movement of the sun in the sky, the shadow cast by the large cone moves. The path described by the shadow was divided in advance into a fixed scale, which allowed people to more easily notice the passage the time.

Step-by-step explanation:

The second answer is also correct! Hope I helped and have a good day!

Answer 2

When the Earth rotates on its axis, the Sun moves across the sky, causing objects to cast shadows. So, how does a sundial work? As the Sun changes relative positions in the sky over the day, the position of the shadow cast by the gnomon changes to align with the different times around the outside of the circular plate. This way you can tell the time by looking at where the shadow is cast, using the markings around the edge of the sundial base.