The strong magnetic field of crystal balls in Feng Shui will bring good luck, while the magnetic field of telephone poles will bring bad luck.

The magnetic field of the crystal ball is stable, orderly, directional, and a regular magnetic field. The strength of the magnetic field is within a reasonable range that humans can accept. It is very beneficial for people who need crystal magnetic fields.

The magnetic field of telephone poles is complex, chaotic, changes erratically, and has high intensity, which is beyond the tolerance range of humans and has only side effects on humans. Strong electromagnetic fields will crackle, destroy the human nervous system, and cause some diseases such as lymphoma.

Stable electromagnetic fields, after scientific design, are beneficial to some people. Such as some magnetic therapy.