R. Whytlaw-Gray, J. B. Speakman · 1921
This 1921 research documented the pearl chain effect, where particles align in chain-like formations when exposed to magnetic fields. The study examined how materials like chlorine and zinc oxide particles respond to magnetic field exposure, providing early scientific documentation of electromagnetic field effects on matter.
Malcolm Thomson · 1921
This 1921 study by Malcolm Thomson documented early observations of the "pearl chain effect" in magnetic fields, examining how particles align in chain-like formations under magnetic influence. The research focused on optical effects and polarization phenomena, particularly involving nickel materials and arc welding applications. This represents foundational work in understanding how magnetic fields organize matter at the microscopic level.
d'ARSONVAL, CHARRIN · 1896
This 1896 French study by D'Arsonval investigated how electricity affects bacterial toxins, specifically examining pyocyanic and diphtheria toxins. The research explored whether electrical treatment could modify these dangerous bacterial substances, potentially offering insights into early electromagnetic therapy approaches.
P. Grützner, R. Heidenhain · 1878
This 1878 German physiological study by Grützner and Heidenhain examined muscle innervation and blood vessel function in animal subjects. While conducted decades before modern EMF research, this foundational work explored how electrical signals control biological systems. The research contributed to early understanding of bioelectrical processes that modern EMF science builds upon.
Unknown authors
This confidential FCC document reveals internal testing that found multiple cell phones exceeded official SAR (radiation absorption) limits when tested at 2mm separation distance. The testing appears to have been conducted on portable handsets to evaluate compliance with federal safety standards. This suggests the FCC was aware that phones could exceed their own safety limits under certain testing conditions.
R. L. Goes, D.M.D.
This pilot study investigated whether pulsed high-frequency radio waves could accelerate wound healing in laboratory animals. The research examined the Diapulse technology, which delivers controlled bursts of RF energy to tissue, measuring effects on wound strength and healing speed. The study represents early research into therapeutic applications of electromagnetic fields for medical treatment.
Unknown authors
This technical report examines US standards and guidelines for radiofrequency and microwave radiation exposure, including SAR (specific absorption rate) limits and power density measurements. The document appears to summarize current regulatory frameworks governing RF radiation exposure from wireless devices and infrastructure. Understanding these standards is crucial since they determine legal exposure limits for cell phones, WiFi, and other wireless technologies.
Unknown authors
This technical report examined the cancer-causing potential of both ionizing radiation (like X-rays) and nonionizing radiation (including microwaves and RF radiation from wireless devices). The report reviewed existing literature on occupational exposure to electromagnetic radiation and its links to carcinogenesis. This type of comprehensive analysis helps establish the current state of scientific knowledge about radiation-related cancer risks across different frequency ranges.
Unknown authors
Scientists measured how much radiofrequency energy mice and rats absorb when exposed to three different frequencies: 2450 MHz (microwave oven frequency), 425 MHz, and 100 MHz. Using precise calorimetry techniques, they found that energy absorption rates varied significantly based on the animal's size, body orientation, and the specific frequency used. This foundational research helps establish how biological tissues absorb EMF energy at different frequencies.
Unknown authors
This interim government draft report examined microwave radiation exposure standards and occupational safety protocols. The document appears to be part of an Environmental Risk Management (ERM) assessment focusing on radiofrequency radiation health standards. Such reports typically evaluate existing exposure limits and workplace safety measures for microwave-emitting equipment.
H. M. Altschuler
Researchers built a specialized facility to expose small animals to 2450 MHz microwave radiation while controlling environmental conditions and accurately measuring radiation doses. This technical study focused on developing proper testing methods rather than examining health effects. The 2450 MHz frequency is the same one used in microwave ovens and some WiFi devices.
Unknown authors
This technical manual provided operational instructions for the AN/AQ-2 radar system, covering transmitter and receiver components along with pulse rate frequency settings. While focused on equipment operation rather than health effects, it documents early radar technology that exposed operators to significant electromagnetic radiation during routine use.
A. Anne
This technical report examined how microwave radiation scatters and gets absorbed by materials that conduct electricity poorly, like biological tissues. The research focused on understanding the physics of how microwaves interact with living matter. This type of foundational research helps scientists predict how microwave exposure might affect human health.
Sol M. Michaelson
This technical report by Michaelson examined the health implications of exposure to microwave and radiofrequency electromagnetic fields. The research reviewed existing evidence on how these energy forms affect human health and biological systems. This type of comprehensive health assessment was crucial for establishing early safety guidelines for RF and microwave technologies.
Unknown authors
This technical report presents measurement results for electric and magnetic field strengths in industrial settings. The study documented RF exposure levels across various workplace environments. Such measurements are crucial for establishing baseline exposure data and evaluating potential health risks from electromagnetic fields in occupational settings.
Unknown authors
This technical report documented magnetic field intensity measurements around a high-frequency (HF) radio transmitter, transmission line, and antenna system on Long Island. The study mapped how magnetic field strength varied at different distances from the transmitting equipment. Such measurements are essential for understanding potential exposure levels near radio broadcasting facilities.
A. K. Mulatov, R. S. Stepanov, S. D. Kirlian, V. H. Kirlian
This technical report by Mulatov examined how biological objects respond when exposed to high frequency electrical fields. The research investigated electromagnetic effects on living systems, focusing on plasma formation and electron behavior at the cellular level. This type of foundational research helps scientists understand the basic mechanisms by which RF energy interacts with biological tissue.
Unknown authors
This appears to be an unclassified government document related to electromagnetic field research, though specific details about the study content are not available from the cover page alone. Government agencies have historically conducted extensive EMF research for both military and public health purposes. The classification as 'unclassified' suggests this research was deemed suitable for public access.
Unknown authors
This government report examined the hazards that electromagnetic radiation poses to military ordnance systems, particularly focusing on radar interference with electroexplosive devices (EEDs). The study investigated how electromagnetic fields from military radar and communication systems could potentially cause unintended detonation or malfunction of weapons systems.
O. P. Gandhi
Researchers tested how rats absorb radiofrequency energy across a wide range of frequencies (285 to 4000 MHz) using a specialized waveguide setup. They found that when RF waves were aligned with the rats' body length, power absorption increased by more than 10 times at certain resonant frequencies compared to other orientations.
Unknown authors
This technical report examined microwave technology applications in biological and medical contexts, focusing on power transmission systems and high voltage components. The research explored how microwave energy interacts with biological systems for potential therapeutic or diagnostic uses. While specific findings aren't detailed, this work represents early investigation into medical microwave applications that are now common in treatments like diathermy and cancer therapy.
Unknown authors
This technical report examines radio frequency and microwave spectrum characteristics across different frequency bands and electromagnetic field properties. The document appears to focus on the technical aspects of how electromagnetic fields behave across various frequencies. Understanding these fundamental properties is essential for evaluating potential health effects from different EMF sources.
Alexander Kolin
This early review examined the broad field of biomagnetism, documenting how magnetic fields interact with living systems. The research covered everything from how organisms naturally respond to magnetic fields (magnetotropism) to medical applications using magnets in surgery. The findings highlighted the wide-ranging biological effects of magnetic field exposure across different organisms and applications.
Unknown authors
This technical report describes a method for precisely measuring microwave power density using power equation techniques. The research focuses on calibration methods that ensure accurate measurement of microwave energy levels. Such precise measurement capabilities are essential for determining actual human exposure levels from microwave-emitting devices.
D. W. C. Shen, H. P. Schwan
This research examined how microwave radiation affects the electrical properties of membrane-covered ellipsoids, which serve as models for biological cells. The study focused on measuring relaxation parameters - essentially how quickly these cell-like structures respond to electromagnetic fields. This type of research helps scientists understand the fundamental mechanisms by which microwave radiation interacts with living tissue at the cellular level.