Browse 8,655 peer-reviewed studies on electromagnetic field health effects from 4 research libraries.
Showing 1,361 studies from Glaser RF/Microwave Archive with extracted diagrams
Kolta P. · 1973
This 1973 study discovered that frog nerve tissue shows unexpectedly strong magnetic properties when exposed to constant inhomogeneous magnetic fields, unlike other body tissues. The researcher found that nerve structures have unique magnetic characteristics that may play a role in how nerve impulses are generated and conducted.
Fischer G. · 1973
This 1973 study examined how constant electrostatic fields affect biological processes in both animals and humans. Researchers found that artificially created positive electrostatic fields increased metabolism, enhanced immune system responses, and improved overall health markers. The findings suggest that natural atmospheric electrical conditions may play an important role in human health.
E. Aurell, B. Tengroth · 1973
Researchers studied workers at a factory testing radar and microwave equipment, finding an unusually high rate of eye lens opacities (early cataracts) in younger employees. They also discovered retinal changes resembling scars in many workers exposed to microwave radiation.
Appleton, B. · 1973
This 1973 government report documented clinical surveys examining eye effects from microwave exposure in workers and other exposed populations. The research represents early systematic efforts to identify ocular health impacts from occupational microwave radiation exposure. This work helped establish the foundation for understanding how microwave frequencies can affect vision and eye health.
Becker CM, Malhotra IV, Hedley-Whyte J · 1973
This 1973 medical study examined nine patients who suffered burns during electrosurgery procedures due to radiofrequency current flowing through electrocardiogram (ECG) monitoring electrodes. Researchers found that RF currents averaging 175 milliamperes could cause skin damage, with burns occurring from equipment malfunctions, improper electrode placement, and current leakage through monitoring cables.
Smith SW, Brown DG · 1973
Researchers measured radio frequency and microwave radiation levels across Washington D.C. in 1969, testing frequencies from 20 Hz to 10 GHz at ten urban locations. The highest radiation levels came from AM radio towers and airport radar, reaching about 0.01 milliwatts per square centimeter. These peak measurements were still 1,000 times lower than occupational safety standards of that era.
Harte C · 1973
Researchers exposed evening primrose plants to radio waves from a radio station for one growing season, then tracked genetic changes in their offspring. The exposed plants produced significantly more lethal embryos, weakened plants, and genetic mutations in the second and third generations. Six out of 23 plant families developed single-gene mutations, proving radio waves can cause heritable genetic damage.
R. I. Kovach · 1973
This 1973 technical study examined how microwave radiation at 460 MHz penetrates and heats different body tissues, specifically comparing fat and muscle layers. Researchers found that 460 MHz provides better deep tissue heating with more even temperature distribution compared to the higher 2375 MHz frequency commonly used in medical devices.
Richard Felger, Mary Beck Moser · 1973
This 1973 study by Frey examined how humans perceive 'sounds' when exposed to pulsed ultrahigh-frequency electromagnetic energy. Researchers found that people's perception of these phantom sounds depended primarily on peak power levels, with pulse width as a secondary factor, while average power had no significant effect.
FREEMAN W. COPE · 1973
This 1973 theoretical paper proposed that living organisms can detect extremely weak magnetic fields through biological superconducting junctions similar to those found in electronic devices. The author suggested these biological structures could be sensitive enough to detect magnetic fields as weak as 0.00000000001 Gauss, which would explain how animals navigate using Earth's magnetic field.
Charles H. Bonney, Pedro L. Rustan, Jr., Gary E. Ford · 1973
Researchers implanted cardiac pacemakers in dogs and exposed them to microwave oven frequencies (915 and 2450 MHz) and radar frequencies (2810 and 3050 MHz). The study found that specific field strengths could completely shut down pacemakers, with 915 MHz requiring only 75 V/m while higher frequencies needed 250 V/m. This 1973 research established the first quantitative safety thresholds for pacemaker interference from common electromagnetic sources.
Richard C. Johnson, H. Allen Ecker, J. Searcy Hollis · 1973
This 1973 technical study examined three methods for measuring antenna radiation patterns in near-field conditions rather than requiring impractical far-field distances. The research focused on engineering solutions for antenna testing when conventional long-distance measurements aren't feasible.
Eugene M. Taylor et al. · 1973
This 1973 study examined how microwave radiation affects brain activity by measuring changes in the central nervous system's electrical responses. Researchers found that microwaves only produced brain effects through heating, not through any unique electromagnetic mechanism. When they cooled the brain during microwave exposure, the effects were reduced or eliminated entirely.
W. R. Tinga, S. O. Nelson · 1973
This 1973 technical reference compiled dielectric properties (how materials interact with electromagnetic fields) for hundreds of biological materials including foods, agricultural products, and human tissues. The data was collected to help engineers design microwave applications for food processing and communications. While not a health study, it provided foundational data showing how microwave energy penetrates and heats biological materials.
Mayers CP, Habeshaw JA · 1973
Researchers exposed mouse immune cells (macrophages) to 2450 MHz microwave radiation at 50 mW/cm² while carefully controlling temperature. They found that microwave exposure significantly reduced the cells' ability to engulf and destroy foreign particles (phagocytosis), a critical immune function. When radiation was stopped, normal immune activity returned.
Mayers CP, Habeshaw JA · 1973
Researchers exposed mouse immune cells to 2450 MHz microwave radiation at 50 mW/cm² while carefully controlling temperature to isolate non-thermal effects. They found that microwave exposure significantly reduced the cells' ability to engulf and destroy harmful particles (phagocytosis), a critical immune function. When radiation stopped, normal immune activity returned.
Johnson RC, Ecker HA, Hollis JS · 1973
This 1973 technical study developed three methods for measuring antenna radiation patterns at close range instead of requiring large distances. Researchers created techniques to predict how antennas would perform in real-world conditions without needing massive testing facilities. This foundational work helped establish how we measure and understand electromagnetic field exposure from antennas today.
Frank A. Brown, Jr., Carol S. Chow · 1973
This 1973 study by Frank Brown examined how organisms respond to extremely weak electromagnetic fields, including Earth's natural fields. The research revealed that organisms not only detect these weak fields but their biological activity changes with natural electromagnetic fluctuations in the atmosphere. Most surprisingly, the study found that some organisms themselves emit electromagnetic fields that can influence the behavior of other nearby organisms.
Brodkin RH, Bleiberg J · 1973
This 1973 medical report documented two cases where people developed fingernail deformities after suspected microwave exposure. The doctors observed abnormal nail growth patterns that they attributed to microwave radiation damage. This early case study highlighted the need for physicians to consider microwave exposure when diagnosing unexplained nail problems.
P. Lommatzsch, B.-D. Bohne, W.-D. Ulrich, R. Kühn · 1973
Researchers exposed rabbit eyes to 8mm microwave radiation at various power levels (0.1 to 2.5 watts) for 30-60 seconds to create controlled tissue damage for potential surgical applications. The study found that microwaves produced thermal effects that could create precise scars in eye tissue, suggesting medical utility for treating retinal detachment.
James R. Rabinowitz · 1973
This 1973 theoretical analysis examined how microwave radiation might be absorbed by biological molecules at the molecular level. The research identified several potential mechanisms by which microwaves could interfere with precise biological processes that depend on specific molecular shapes and structures. This early work helped establish the scientific foundation for understanding how microwave energy interacts with living tissue.
Unknown authors · 1973
This 1973 technical report examined different types of RF power meters designed for use with ultrasonic medical equipment. The research focused on measurement devices including Hall effect sensors and couplers that could accurately monitor radiofrequency power levels during ultrasonic procedures. This work addressed the need for precise power measurement in early medical ultrasound technology.
Richard Felger, Mary Beck Moser · 1973
This 1973 study by Dr. Allan Frey demonstrated that humans can perceive pulsed microwave radiation as sound, even without using their ears. The research found that peak power levels and pulse characteristics determined what people heard, while average power had no effect. This discovery revealed a direct biological interaction between electromagnetic fields and the human nervous system.
N.E. Anden et al. · 1973
This 1973 study examined goldfish nerve cells and found that when a single Mauthner cell fires an electrical impulse, it creates a powerful electrical field that blocks nerve activity in surrounding cells up to 500 micrometers away. The electrical current from one nerve cell was strong enough to prevent other nearby nerve cells from firing, demonstrating how electrical fields can directly interfere with normal nervous system function.
BIGU DEL BLANCO, J. · 1973
This 1973 technical report examined radiofrequency fields as an emerging ecological factor in our environment. The research appears to have reviewed the environmental effects of RF radiation, representing early scientific recognition that electromagnetic fields could impact biological systems. This work came at a time when RF technology was expanding but environmental health effects were just beginning to be understood.