Carol B. Pratt, Charles Sheard · 1935
This 1935 research by Dr. C.B. Pratt examined how radiofrequency diathermy treatments changed tissue temperatures in animal subjects. The study investigated thermal effects from short-wave radio frequency applications used in medical radiotherapy. This represents early scientific documentation of how RF energy produces measurable heating effects in biological tissues.
Ruth Westlund Jung · 1935
This 1935 research examined immune system responses during hyperpyrexia (extremely high fever), with particular focus on diathermy treatments that used electromagnetic fields to generate therapeutic heat. The study investigated changes in blood chemistry and complement levels (immune proteins) when the body was exposed to fever-inducing electromagnetic heating.
C. J. BREITWIESER, JOHN SEVERY HIBBEN · 1935
This 1935 technical analysis examined different machines used for artificial fever production in physical therapy, focusing on their physical characteristics rather than medical effects. The research aimed to separate facts from fallacies about RF heating equipment by conducting standardized physical tests. This represents early scientific documentation of RF energy's heating properties in medical devices.
DEAN CLARK, JOSEPH HUGHES, HERBERT N. GASSER · 1935
This 1935 study by Clark investigated whether the slowest-conducting nerve fibers (called 'C fibers') could carry sensory information to the brain. Using cats, researchers found that these unmyelinated fibers do indeed transmit sensory signals and can trigger reflexes, establishing their role in the nervous system's communication network.
DR. I. M. LEAVY · 1935
This 1934 medical study examined physical therapy treatments for chronic diseases, including the use of diathermy (electromagnetic heating therapy) for conditions like peripheral vascular disease and ulcerations. The research explored therapeutic applications of electromagnetic energy alongside massage and hydrotherapy. This represents early medical use of controlled electromagnetic fields for healing purposes.
Bernard Mortimer, Stafford L. Osborne · 1935
This 1935 study examined how short wave diathermy devices heat human tissue using radiofrequency electromagnetic fields. The research investigated the thermal effects of electromagnetic currents on biological tissue, representing early scientific work on how RF energy interacts with the human body. This foundational research helped establish understanding of electromagnetic heating mechanisms that remain relevant to modern EMF exposure concerns.
HAROLD NEIFELD, M.D. · 1935
This 1935 study by Neifeld examined how electric currents affected human breathing patterns, investigating both galvanic treatment and diathermy applications on respiratory movements. The research represents early scientific investigation into how electrical exposures directly influence basic human physiological functions. This work provides historical context for understanding how electromagnetic fields can affect vital bodily processes.
Franz Nagelschmidt, M.D. · 1935
This 1935 medical research examined improved methods for applying condenser field diathermy, a therapeutic technique using short-wave radiofrequency energy to heat body tissues. The study focused on electrode placement and field application techniques for medical treatments. This represents early documentation of intentional RF exposure for therapeutic purposes.
Conrad K. Gale · 1935
This 1935 research investigated whether short and ultrashort waves have selective properties and thermic powers of penetration, using paramecia (single-celled organisms) and electrolytic solutions. With wavelengths of 6, 10 and 20 meters, the reaction of the paramecia was identical and ran parallel to the temperature curves. Experiments with electrolytic solutions showed that 8-meter and 15-meter waves penetrate water layers and heat solutions in different spaces.
TIBOR DE CHOLNOKY, M.D. · 1935
This 1935 study by Dr. T.D. Cholnoky examined the use of short wave radiofrequency therapy to treat pyogenic skin infections, including furuncles (boils). The research investigated whether controlled RF energy could serve as an effective medical treatment for bacterial skin conditions. This represents early medical application of the same type of electromagnetic energy we're now concerned about from wireless devices.
Alfred Strassburger, Erwin Schliephake · 1934
This 1934 German study examined how ultrashort radio waves affected heat regulation and body temperature control in rabbits. The research explored whether RF radiation could disrupt the central nervous system's ability to maintain normal body temperature, potentially causing fever-like responses. This represents some of the earliest scientific investigation into how electromagnetic fields might interfere with basic biological processes.
William Bierman, M.D. · 1934
This 1934 study exposed humans to 30-meter wavelength radio frequency radiation to artificially induce fever (hyperpyrexia) and measured changes in white blood cell counts. Researchers found that RF-induced fever affected immune cell levels, providing early evidence that electromagnetic radiation can trigger measurable biological responses in the human body.
J. W. Schereschewsky · 1933
This 1933 study investigated how very high frequency electromagnetic fields from condenser equipment heated organic fluids and biological tissues. The research examined dielectric heating effects, where electromagnetic energy converts to thermal energy in biological materials. This represents one of the earliest scientific investigations into how radiofrequency fields interact with living tissue.
Cepero-Garcia, G., Comas-Cespedes · 1933
This 1933 study examined how medical diathermy (therapeutic radiofrequency heating) affected both healthy and diseased eyes. The research investigated the therapeutic and potentially harmful effects of RF energy on eye tissues during medical treatment. This represents early documentation of radiofrequency effects on sensitive eye tissues.
Paul Groag, Victor Tomberg · 1933
This 1933 Austrian study from Vienna's Rainer Hospital examined short wave therapy (diathermy) applications in physical therapy. The research documented early medical use of radiofrequency electromagnetic fields for therapeutic heating of human tissue. This represents some of the earliest clinical investigation into how RF energy affects the human body.
W. T. Szymanowski, Robert Alan Hicks · 1932
This 1932 study examined the biological effects of ultrahigh frequency electromagnetic waves, representing one of the earliest scientific investigations into how radio frequency radiation affects living systems. The research used short wave oscillators to study biological responses to these electromagnetic fields. This work established foundational understanding of RF bioeffects that remains relevant to modern EMF health research.
Bishop FW, Horton CB, Warren SL · 1932
Victor C. Jacobsen, Kiyoshi Hosoi · 1931
This 1931 study by Jacobsen examined how ultrahigh frequency radio waves cause tissue damage in animals through heating effects. The research documented cellular changes and inflammatory responses when RF energy raised tissue temperatures beyond normal biological limits. This represents some of the earliest scientific documentation of RF radiation's biological effects.
E. Pflomm · 1931
This 1931 German study by E. Pflomm examined both experimental and clinical effects of ultrashort wave radiation on human subjects, focusing on inflammatory responses. The research represents some of the earliest documented investigation into how radiofrequency electromagnetic fields affect human health and biological processes.
E. D. Adrian · 1931
This 1931 research by Edgar Adrian examined how sensory nerve fibers carry and interpret electrical signals in the nervous system using electrometer technology. The study established foundational principles for understanding how nerves process electrical stimuli and convert them into sensations. This early work laid crucial groundwork for modern understanding of bioelectricity and how external electromagnetic fields might interfere with natural nerve signaling.
Dr. W. Haase, Priv.-Doz. Dr. E. Schliephake · 1931
This 1931 German study by Dr. Haase and Dr. Schliephake investigated how short-wave radio frequency radiation affects bacterial growth. The research examined biological effects of electromagnetic waves on microorganisms, representing some of the earliest scientific inquiry into EMF impacts on living systems. This work helped establish the foundation for understanding how wireless signals interact with biological processes.
C. M. CARPENTER, R. A. BOAK · 1930
This 1930 study examined whether ultra-high frequency electromagnetic radiation could generate enough heat to treat syphilis infections in rabbits. Researchers used an oscillator device to expose infected rabbits to RF energy, investigating whether the resulting thermal effects could kill the Treponema pallidum bacteria. This represents one of the earliest documented attempts to use electromagnetic fields for medical treatment.
Schliephake, E. · 1929
This 1929 German study by Dr. E. Schliephake examined how short electric waves penetrate deeply into human organisms and affect biological systems. The research focused on the biological effects of electromagnetic radiation, particularly in medical diathermy applications. This represents some of the earliest documented scientific investigation into how radiofrequency electromagnetic fields interact with living tissue.
J. W. Schereschewsky · 1928
This 1928 study exposed mice to high-frequency radio waves (8.3 to 135 million cycles per second) and found that certain frequencies caused more tissue damage than others. The researcher discovered that intermediate frequencies were more harmful than very high or very low frequencies, suggesting different frequencies affect cells differently.
RONALD V. CHRISTIE, ALFRED L. LOOMIS · 1928
This 1929 research by Christie and Loomis exposed mice to ultra-high frequency radiation at frequencies between 1,000,000 and 158,000,000 cycles per second (wavelengths from 300 meters to 1.9 meters) and measured lethal effects and heat production. The lethal effect was proportionate to the intensity of the field up to about 50,000,000 cycles (6 meters wavelength), and at higher frequencies both heat production and lethality diminished. The lethal effect was fully accounted for by heat production, strictly analogous to diathermy.