Intersection of two rivers

Not far from the Polish town of Wagrowiec has a unique place on our planet. There are two rivers intersect at right angles. Although formally, it is believed that the river is a tributary of the river Nelba Velna.

This intersection is unique not only equality of the angles of intersection, but the fact that the river water is absolutely not mix. Scientists examined the actual fact of practical experience. One River red dye was added, and the other blue. As a result, one stream and then remains red and the second blue. The thing is that the flow of the river passes over Nelba Velny movement. The researchers explain this unusual fact different temperature water flow rate and the level of direct channels themselves.