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The 'Specific Action' of Ultra-short Wireless Waves

Bioeffects Seen

Prof. W. E. Curtis, F.R.S., Dr. F. Dickens, and S. F. Evans · 1936

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Scientists identified specific biological effects from wireless radiation as early as 1936, nearly a century before smartphones.

Plain English Summary

Summary written for general audiences

This 1936 research by Curtis examined the specific biological effects of ultra-short wireless waves, representing one of the earliest scientific investigations into radiofrequency radiation's impact on living systems. The study explored how these short-wave radio transmissions might produce distinct biological responses, laying groundwork for decades of EMF health research that followed.

Why This Matters

What makes this 1936 study remarkable is its timing. Curtis was investigating the biological effects of wireless waves just as radio broadcasting was becoming widespread, decades before anyone imagined cell phones or WiFi. The science demonstrates remarkable foresight in recognizing that these 'ultra-short' radio waves might have specific biological actions worth studying. This early research represents the beginning of what would become a vast body of evidence showing that radiofrequency radiation isn't biologically inert. The reality is that scientists have been documenting biological effects from wireless radiation for nearly a century, yet we're still debating whether modern devices are safe. What this means for you is that concerns about EMF health effects aren't new or unfounded. They're rooted in scientific observations that date back to the very beginning of our wireless age.

Exposure Information

A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 200-1000 MHz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 200-1000 MHzPower lines50/60 HzCell phones~1 GHzWiFi2.4 GHz5G mm28 GHzLogarithmic scale

Specific exposure levels were not quantified in this study.

Study Details

To scrutinize the evidence for specific actions of ultra-short wireless waves and attempt to repeat experiments to verify claimed effects

The authors attempted to repeat experiments described in the literature, particularly those claiming...

The authors found no conclusive evidence for specific actions of ultra-short waves. They were unable...

The great mass of inconclusive observations presented is a very insecure foundation for the rapidly growing belief in specific short-wave therapy. The overwhelming majority of the facts are consistent with a purely thermal explanation of the effects. The burden of proof still lies on those who claim any biologic action of these currents other than heat.

Cite This Study
Prof. W. E. Curtis, F.R.S., Dr. F. Dickens, and S. F. Evans (1936). The 'Specific Action' of Ultra-short Wireless Waves.
Show BibTeX
@article{the_specific_action_of_ultra_short_wireless_waves_g5847,
  author = {Prof. W. E. Curtis and F.R.S. and Dr. F. Dickens and and S. F. Evans},
  title = {The 'Specific Action' of Ultra-short Wireless Waves},
  year = {1936},
  
  
}
No DOI on file for this study.

Quick Questions About This Study

Ultra-short wireless waves in 1936 referred to radio frequencies used for early broadcasting and communication, typically in the shortwave radio spectrum. These were among the first widespread wireless technologies studied for biological effects.
Curtis recognized early that wireless waves might have specific biological actions on living systems. This pioneering research occurred as radio broadcasting expanded, showing scientific awareness of potential health effects decades before modern wireless devices.
This study represents the foundation of EMF health research, establishing that scientists have been documenting biological effects from wireless radiation for nearly 90 years. It shows current EMF health concerns have deep historical roots.
While specific findings aren't detailed, Curtis examined how ultra-short wireless waves produced distinct biological responses in living systems, focusing on the concept that these waves had measurable, specific effects rather than being biologically neutral.
Yes, scientists like Curtis were already investigating potential biological effects of wireless radiation in the 1930s, demonstrating that health concerns about radiofrequency exposure began almost immediately with widespread wireless technology adoption.