THE DIELECTRIC CONSTANT AND CONDUCTIVITY OF THE BLOOD AT ULTRA-HIGH FREQUENCIES
Rajewsky, V., Schwan, H. · 1948
This 1948 study provided foundational measurements of how human blood interacts with ultra-high frequency electromagnetic radiation.
Plain English Summary
This 1948 research by Bajevsky measured how human blood responds to ultra-high frequency electromagnetic radiation by studying its dielectric properties and electrical conductivity. The study examined how blood tissue interacts with radiofrequency fields, providing early data on how biological materials behave when exposed to EMF. This foundational work helped establish baseline measurements for understanding how electromagnetic energy interacts with human tissue.
Why This Matters
This pioneering 1948 study represents some of the earliest scientific investigation into how human biological tissue responds to radiofrequency radiation. While we don't have the specific findings, the research addressed a fundamental question that remains relevant today: how does electromagnetic energy interact with our blood and other bodily fluids? The dielectric properties Bajevsky measured determine how much EMF energy is absorbed versus reflected by tissue, which directly impacts potential biological effects.
What makes this research particularly significant is its timing. In 1948, we were just beginning to understand electromagnetic interactions with biological systems, decades before cell phones, WiFi, and other ubiquitous RF sources became part of daily life. The ultra-high frequencies studied likely correspond to what we now encounter from various wireless technologies. Understanding how blood responds to these frequencies provides crucial baseline data for evaluating the safety of our increasingly electromagnetic environment.
Figures from the Original Paper
Diagrams extracted from the original research document.
Exposure Information
Specific exposure levels were not quantified in this study.
Study Details
Die Untersuchung des dielektrischen Verhaltens biologischer Körper im hochfrequenten und ultrahochfrequenten Gebiet, insbesondere die Frage nach dem Dispersionsmechanismus der Dielektrizitätskonstante (DIX) und der Leitfähigkeit.
Messungen der Leitfähigkeit und Dielektrizitätskonstante im Wellenlängenbereich bis zu 36 cm bei bio...
Die Werte der Dielektrizitätskonstante und Leitfähigkeit zeigen eine Dispersion, die sowohl durch in...
Die Ergebnisse zeigen, dass sowohl inhomogene Mechanismen als auch der polare Charakter biologischer Substanzen zur Erklärung der beobachteten Dispersion herangezogen werden müssen. Die inhomogenen Mechanismen sind besonders bei längeren Wellenlängen relevant, während der polare Charakter bei kürzeren Wellenlängen dominierend ist. Die Messungen bestätigen die Notwendigkeit von theoretischen Modellen zur Beschreibung der Dispersion in biologischen Materialien.
Show BibTeX
@article{the_dielectric_constant_and_conductivity_of_the_blood_at_ultra_high_frequencies_g4198,
author = {Rajewsky and V. and Schwan and H.},
title = {THE DIELECTRIC CONSTANT AND CONDUCTIVITY OF THE BLOOD AT ULTRA-HIGH FREQUENCIES},
year = {1948},
}