Therapies
American Scientist Royal Raymond Rife developed the Rife machine in the 1920s. The machine is also called a Rife frequency generator.
The Rife machine and other types of similar machines produce low energy waves. These waves are also called radio frequency electromagnetic fields. They have low energy compared to x-rays or radiotherapy which has high energy. The use of low energy waves as a treatment is less common, but there is some research on it.