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BIOLOGICAL SENSITIVITY TO WEAK MAGNETIC FIELDS DUE TO BIOLOGICAL SUPERCONDUCTIVE JOSEPHSON JUNCTIONS?

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FREEMAN W. COPE · 1973

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Living organisms may detect magnetic fields through quantum-level biological junctions sensitive to incredibly weak electromagnetic signals.

Plain English Summary

Summary written for general audiences

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.

Why This Matters

This pioneering work from 1973 represents one of the earliest attempts to explain biological sensitivity to electromagnetic fields through quantum physics principles. While the superconductive Josephson junction theory remains largely theoretical, it addresses a fundamental question that's more relevant today than ever: how can living systems respond to EMF levels that seem impossibly weak? The science demonstrates that organisms routinely detect magnetic fields thousands of times weaker than what we might expect biological systems to sense. What this means for you is that if biological systems can indeed detect fields at 10^-11 Gauss, they're certainly capable of responding to the much stronger EMF exposures from modern wireless devices, which typically operate at field strengths millions of times higher than these theoretical detection thresholds.

Exposure Information

Specific exposure levels were not quantified in this study.

Cite This Study
FREEMAN W. COPE (1973). BIOLOGICAL SENSITIVITY TO WEAK MAGNETIC FIELDS DUE TO BIOLOGICAL SUPERCONDUCTIVE JOSEPHSON JUNCTIONS?.
Show BibTeX
@article{biological_sensitivity_to_weak_magnetic_fields_due_to_biological_superconductive_g5890,
  author = {FREEMAN W. COPE},
  title = {BIOLOGICAL SENSITIVITY TO WEAK MAGNETIC FIELDS DUE TO BIOLOGICAL SUPERCONDUCTIVE JOSEPHSON JUNCTIONS?},
  year = {1973},
  
  
}

Quick Questions About This Study

According to this research, various species can detect weak magnetic fields ranging from 0.1 to 5.0 Gauss. This natural sensitivity helps explain how animals navigate using Earth's magnetic field for migration and orientation.
Man-made superconductive Josephson junctions can detect magnetic fields as weak as 10^-11 Gauss. The theory suggests biological versions could have similar or even greater sensitivity, far exceeding what seems necessary for natural magnetic navigation.
A biological Josephson junction would be a quantum-level structure where electrons tunnel between superconductive regions in living tissue. This theoretical mechanism could explain how organisms sense extremely weak electromagnetic fields through quantum physics principles.
The 1973 paper presents only indirect evidence for electron tunneling in living systems. While the theory is compelling, direct proof of biological superconductive regions and electron tunneling remains an active area of research decades later.
The extreme sensitivity proposed in this theory far exceeds what's needed for natural navigation. However, such sensitivity could explain how biological systems respond to very weak electromagnetic fields from both natural and artificial sources.