Describe the use of the tímpano in the Nile Valley, according to the given text.


The tímpano is a vertical wheel located in the watercourse, moved by man with his feet or hands, and is provided with hollows in its crown that raise the water up to a height between its radius and diameter. It is considered very ancient and was known in the Tigris, Euphrates, and Nile rivers.
The tímpano is a horizontal wheel with paddles, located in the watercourse and driven by water, connected to a vertical axis whose other end is solidary with the mobile millstone of the mill. It was used in China from the beginning of the Christian era and was widespread throughout the country, especially in the 3rd and 4th centuries AD.
The tímpano is a vertical wheel located in the watercourse, moved by the current of water that impacts its perimeter fins, and provided with buckets or hollows in its crown that raise the water up to a height slightly lower than its diameter. It was used in the Tigris, Euphrates, and Orontes rivers, as well as in the Nile, and is considered to have been invented in the Hellenistic period.