What is the Earth's natural resonant frequency?

[mapa]

(Is there one?) What is the Earth's natural resonant frequency?

 

[Creator]

(Is there one?) What is the Earth's natural resonant frequency?

Hmm..
I will assume you are not referring to the Electromagnetic resonance, usually referred to a Schumann resonances (in which there is an abundance of available info).

If you are referring to the Earth's natural mass resonant modes, I believe there are several, (which are predicted and derived mostly from geophysical and earthquake data).

Not commonly known is the fact that there is a low frequency Earth resonant mode of about one every 54 minutes,... that Joseph Weber (and Robert Forward) tried to use in Gravitational wave detection using very sensitive gravimeters (long long time ago in a distant land ;))...before deciding to build the resonant (aluminum) bar detectors.

Creator

 

[Cleonis]

(Is there one?) What is the Earth's natural resonant frequency?

I just found a web page called http://icb.u-bourgogne.fr/nano/MANAPI/saviot/terre/index.en.html"

 

[mapa]

Thank You.

 

[sardar]

I can confirm that the Earth does have a natural resonant frequency. This frequency is known as the Schumann resonance, named after physicist Winfried Otto Schumann who first predicted its existence in 1952. The Schumann resonance is the frequency at which the Earth's electromagnetic field naturally vibrates.

This frequency is approximately 7.83 Hz, although it can vary slightly depending on factors such as the Earth's atmospheric conditions. It is caused by the electromagnetic waves that constantly circulate between the Earth's surface and the ionosphere, creating a resonant cavity.

While the Schumann resonance is not the only frequency at which the Earth naturally resonates, it is the most well-known and studied. Other frequencies in the range of 3-60 Hz have also been observed and are thought to play a role in regulating the Earth's natural processes, such as the circadian rhythms of living organisms.

In conclusion, the Earth does have a natural resonant frequency, and it is an important aspect of our planet's electromagnetic environment. Further research on this topic can help us better understand the Earth's natural processes and how they may be affected by external factors.