A plasma ball was invented in 1895 by the famous inventor Nikola Tesla. The glass bulb is filled with a mixture of Xenon, Krypton and Neon noble gases. Through a high-voltage Tesla coil sparks, many from the middle to the surface sent. As a basis, the Hulda Clark frequency of healing 30.000Hz used. Modulated 7.8 Hz Schumann frekwuentie is used, equal to the earth resonance and very effective as an anti-electro smog, to counteract the disturbing frequencies such as GSM, AC, WiFi, DECT, PC EMF. Same frequency is used to austronaten to survive in space stations. It is also the frequency of the Alpha waves of the brains that are very calming effect.