What is the principle of dragon ruler?

The dragon ruler needs to be placed flat on the chest, and there is a very sensitive orientation between the vertical grip and the pointer parallel to the ground. As long as the user leans slightly in a certain direction, the pointer will point there, that is, the dragon ruler will point anywhere the user wants.

The dragon ruler needs to be placed flat on the chest, and there is a very sensitive orientation between the vertical grip and the pointer parallel to the ground. As long as the user leans slightly in a certain direction, the pointer will point there, that is, the user will point to the dragon ruler wherever he wants, because the dragon ruler is flat with his hand.

Then it is impossible for a person to maintain an absolute level. The pointer will move when it is slightly tilted. Of course, it also has psychological effects. Even if the master of the operation didn't mean to deceive people, then because he values a certain point here as an acupoint, when he looks for the dragon ruler at the flat end, the psychological effect will make the dragon ruler slightly tilt there and the pointer naturally points there.

Dragon hunting ruler, also known as spirit ruler, dragon hunting stick and dragon hunting needle, etc. The English name is "Dowsing Rod" and the neutral name is detecting stick. Dragon hunting ruler is popular in geographical geomantic omen, and it is a necessary wardrobe tool for geomantic omen.

The neutral name is called probe stick. Someone once turned it into a divination stick and wand, and some friends in the geomantic geography circle called it a dragon ruler, a dragon rod, a dragon probe and so on.