Characterization of the Thermal Response Among Animals Exposed to Microwaves or Increased Environmental Temperature
Sol M. Michaelson, Roderick A. E. Thomson, Joe W. Howland · 1959
This 1959 animal study pioneered research into whether microwave heating differs biologically from conventional heating.
Plain English Summary
This 1959 study examined how animals respond to heat from microwave radiation compared to heat from increased environmental temperature. Researchers characterized the thermal (heat) responses in animals exposed to microwaves to understand whether microwave heating differs from conventional heating. This was pioneering research into the biological effects of microwave exposure during the early development of radar and microwave technology.
Why This Matters
This research from 1959 represents some of the earliest scientific investigation into microwave biological effects, conducted by SM Michaelson who became a leading figure in microwave bioeffects research. The study's focus on thermal responses was crucial because the prevailing scientific assumption was that microwaves only cause harm through heating tissue. By comparing microwave-induced heating with conventional environmental heating, researchers were beginning to explore whether microwaves might have unique biological effects beyond simple thermal damage. What makes this historically significant is that it laid groundwork for decades of research that would eventually reveal non-thermal effects from microwave radiation. Today's cell phones, WiFi routers, and microwave ovens all operate in similar frequency ranges, making this foundational thermal research relevant to understanding modern EMF exposure patterns.
Exposure Information
Specific exposure levels were not quantified in this study.
Study Details
To characterize the thermal response among animals exposed to microwaves or increased environmental temperature
Three species of animals were exposed to 200 and 2800-Mc microwaves and increased environmental temp...
The thermal response in a dog exposed to 165 mw/cm²-2800-Mc pulsed microwaves consists of three dist...
The inherent thermal regulatory capacity and the degree of microwave penetration and absorption are the determining factors in the animal's response to microwave exposure. Thermal effects have not been elucidated in the whole body exposed animal, but head exposure of the rabbit would indicate that there may be a direct effect on the brain stem of such exposed animals. Evaluation of the differential white cell changes suggests a stress effect, which possibly is related to duration of exposure.
Show BibTeX
@article{characterization_of_the_thermal_response_among_animals_exposed_to_microwaves_or__g3829,
author = {Sol M. Michaelson and Roderick A. E. Thomson and Joe W. Howland},
title = {Characterization of the Thermal Response Among Animals Exposed to Microwaves or Increased Environmental Temperature},
year = {1959},
}