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Dielectric Properties of Materials for Microwave Processing—Tabulated

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W. R. Tinga, S. O. Nelson · 1973

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This 1973 reference compiled the fundamental physics data showing how electromagnetic fields interact with biological tissues.

Plain English Summary

Summary written for general audiences

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.

Why This Matters

This foundational work from 1973 represents something crucial that's often missing from today's EMF health discussions: comprehensive data on how electromagnetic fields actually interact with biological tissues. The dielectric properties catalogued here determine how deeply microwaves penetrate into your body and where the energy gets absorbed. Put simply, this is the physics that underlies every EMF exposure you experience. What makes this particularly relevant today is that these same principles govern how your cell phone's radiation interacts with your brain tissue, how WiFi signals affect your body, and how 5G millimeter waves behave differently than older wireless technologies. The reality is that understanding tissue dielectric properties is fundamental to assessing EMF health risks, yet this basic physics is rarely discussed in public health communications about wireless radiation.

Exposure Information

Specific exposure levels were not quantified in this study.

Cite This Study
W. R. Tinga, S. O. Nelson (1973). Dielectric Properties of Materials for Microwave Processing—Tabulated.
Show BibTeX
@article{dielectric_properties_of_materials_for_microwave_processing_tabulated_g4987,
  author = {W. R. Tinga and S. O. Nelson},
  title = {Dielectric Properties of Materials for Microwave Processing—Tabulated},
  year = {1973},
  
  
}

Quick Questions About This Study

Dielectric properties determine how electromagnetic fields interact with materials like human tissue, affecting how deeply radiation penetrates and where energy gets absorbed in your body.
Engineers needed this data to design microwave ovens and communication systems, understanding how electromagnetic energy would heat or penetrate different biological materials effectively.
Materials respond differently to various frequencies, with some absorbing more energy at specific frequencies. Temperature and moisture content also significantly affect electromagnetic absorption rates.
The database covered agricultural products, biological tissues, foods, forest products, leather, rubber, and soils, providing comprehensive electromagnetic interaction data for organic materials.
These fundamental physics principles still govern how cell phones, WiFi, and 5G interact with your body today, determining radiation penetration depth and absorption patterns.