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The Schumann Resonance

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A German physicist predicted in 1952 that lightning striking worldwide would set the space between Earth's surface and its ionosphere ringing like a bell, near 7.83 Hz. Measurements later confirmed it. Popular claims that it governs human health or consciousness go well beyond that physics.

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Worth knowing · 1 of 5
What is the Schumann resonance?
It is a set of extremely low-frequency electromagnetic resonances that occur in the cavity between Earth's surface and its ionosphere, continuously excited by the roughly constant lightning activity happening somewhere on the planet.
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Who first predicted it, and when?
A German physicist calculated the phenomenon mathematically in 1952, predicting that this global electrical cavity would resonate at specific low frequencies determined by the size of the Earth-ionosphere gap.
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What is the main frequency, and was the prediction confirmed?
The fundamental resonance sits near 7.83 Hz. Researchers at MIT's Lincoln Laboratory achieved the first confirmed measurement of it in 1960, validating the earlier calculation against real recorded data.
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What do popular claims add to this physics?
Some popular sources describe the resonance as 'Earth's heartbeat' tied to human brainwaves, consciousness, or wellbeing, framings that go beyond what the underlying geophysics actually measures or demonstrates.
Worth knowing · 5 of 5
Is there scientific support for those added claims?
No peer-reviewed evidence supports the idea that the resonance directly affects human health, mood, or consciousness; physicists who study the phenomenon describe those extensions as unsupported by current understanding of the physics involved.
Words to know
Schumann resonanceA set of extremely low-frequency electromagnetic resonances in the Earth-ionosphere cavity, continuously excited by global lightning activity.
IonosphereAn electrically charged layer of Earth's upper atmosphere that, together with the surface, forms the resonant cavity involved.
7.83 HzThe approximate frequency of the fundamental Schumann resonance, the lowest and strongest of several such resonant modes.
More words
Extremely low frequencyThe broad range of very low electromagnetic frequencies, including the Schumann resonance band, distinct from higher radio frequencies.
A voice · 1 of 3
Winfried Otto Schumann · Physicist who predicted the resonance

In 1952, working at a technical university in Munich, he calculated that the cavity between Earth's surface and the ionosphere should resonate at specific low frequencies, publishing the prediction that now carries his name.

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Martin Balser · Researcher who first measured it

Working with a colleague at MIT's Lincoln Laboratory, he achieved the first confirmed detection of the predicted resonance near 7.83 Hz in 1960, extracting the signal from background atmospheric noise for the first time.

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Ethan Siegel · Astrophysicist and science writer

Writing about the phenomenon's popularization, he distinguished the confirmed geophysics from the health and wellness claims built on top of it, describing those added claims as unsubstantiated and inconsistent with established physics.

A line to leave them with
The Earth really does ring at that frequency. What it means for you is separate.
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