Pegah on Nostr: It's not always like this. Depending on the weaving region, sometimes they consider ...

It's not always like this. Depending on the weaving region, sometimes they consider 6.5 centimeters as well. Let me explain more clearly: each knot is equivalent to one pixel. The fineness of a rug depends on various factors, the most important being the knot density, which I considered to be 70 in the question, and the warp thread on which the knots are woven. For example, a rug made with silk threads is much finer than one made with wool threads. What makes Persian carpets more attractive is that each region has its own weaving method, and the weavers of each region are not familiar with the weaving methods of all regions. This is why some works are more elegant on silk, and conversely, some designs should only be woven on wool to maintain the feel of the design. Changing the material might damage the artistic effect. This is only done when the designs match that type of material.