Royal Raymond Rife (1888–1971) was an American inventor and microbiologist known as the founder of frequency therapy and the so-called Rife machines. In the 1920s and 1930s, Rife developed a sophisticated microscope and experimental apparatus that allowed him to study microorganisms in a unique way. He proposed that each microorganism possesses a specific resonant frequency and that targeted frequencies can influence these microbes—the basic principle behind Rife therapy and modern frequency devices.

Key discoveries and technology

• Revolutionary microscope : Rife built an optical instrument that made very small microorganisms visible without destroying them, leading to new insights into microbiology and bacterial polymorphism.
• Rife machine and frequencies: He developed devices that emitted specific frequencies, aimed at influencing pathogenic vibrations. This approach formed the basis for what would later become known as frequency therapy or bioresonance.

Controversy and renewed interest
Rife's work generated considerable excitement at the time, but also criticism. His claims were not widely accepted by mainstream medicine, and research and reproducibility remained a topic of debate. Since the 1980s, there has been renewed interest in Rife devices and frequency therapy in alternative medicine and among researchers, with modern applications in complementary care.

Why Rife Remains Relevant
Royal Raymond Rife is considered an influential pioneer in the development of frequency-based treatment methods. His ideas about resonance and microorganisms continue to inspire contemporary frequency devices, bioresonance, and PMF therapies.