The plan was made to the medical school at the University of Debrecen. It is a 2 metres diameter hemisphere in which you can see irregular shapes reticulation of engravings with mercury in it. Its top is covered by plate from glass. The setting is throwing the hemisphere off balance so if you stand next to it you can easily move it and take it back to balance. It can give a strange feeling to move the heavy stone so easily. Due to the effect of move the mercury is running through in the engravings. The health is the state of the streamline and the balance.