11Hz

11Hz is a frequency, typically referring to sound or electromagnetic waves. In the context of sound, 11Hz falls below the typical human hearing range, which is generally considered to be between 20Hz and 20,000Hz. Sounds at this frequency are often felt as vibrations rather than heard distinctly. This infrasound range can be produced by natural phenomena like earthquakes, volcanic eruptions, and wind, as well as by artificial sources such as large machinery and some types of music.

The effects of infrasound, including frequencies around 11Hz, on humans are a subject of ongoing research and debate. Some studies suggest potential physiological and psychological effects, such as feelings of unease, anxiety, or even physical discomfort. However, these effects are not universally agreed upon, and the precise mechanisms by which infrasound might influence human perception and physiology are not fully understood.

Electromagnetic waves at 11Hz are in the extremely low frequency (ELF) range. This part of the electromagnetic spectrum is also naturally occurring, for instance, in the Earth's magnetic field. Man-made ELF fields are generated by power lines and some electronic devices. Like infrasound, ELF electromagnetic fields have been studied for potential health impacts, though conclusive evidence of significant harm at typical exposure levels remains limited.