The use of therapeutic tuning forks began in 1550 in Italy as diagnostic tools for middle or inner ear conditions. Over time, the technique developed in England, Germany, and France around 1840. Many physicists (Ernest Chladni, Hélène Grimal) demonstrated sound vibrations and their powers. Numerous studies have been conducted on the influence of sounds on water and the human body. Renowned researchers have deduced the optimal frequency for each organ. Characteristics
MEINL planetary tuning forks are made in Germany based on the calculations of Hans Cousto (The Cosmic Octave) to correspond to the frequencies of the sun, moon, and planets. Each tuning fork is tuned to produce the corresponding frequency of the celestial body. These tuning forks were designed for therapeutic applications.