The discoverer of Dowsing Rodong can find a suitable place to hide the dragon. When it is used, the human body is used as a conductor, the dragon finder is supported by both hands, and the arms are open and kept still, and the dragon finder will swing under the influence of the earth's gas field. If there is no life on the earth, the dragon seeker will not swing. Furthermore, a villa or a tomb in Kanyu can also be used to measure whether it gathers gas or decays without gathering gas, but it emphasizes that the universe is a big magnetic field and everything is charged, including crystals, jade articles and even stones. The south and north poles of the earth are huge magnetic fields. Then, because the earth revolves around the sun, the revolution and rotation generate a powerful charge [just like a generator running at high speed to generate electricity]], the condensed charge generated by the earth's rotation and revolution is called geomagnetic attraction, which is called "Long Mai halo" in geomantic science. This Long Mai aura is an intangible thing, which can be measured with a dragon ruler.
This function must be very expensive.