The Taos Hum is perhaps the most famous of the unexplained phenomen that is experienced in various locations around the world. In brief, a “hum” appears to be a low frequency sound with a rhythmic pulse to it. Many of the people that have claimed to hear or suffer from this humming have apparently claimed that it sounds like a “far away diesel engine”. It can be frequently be heard in Taos, New Mexico where it is claimed that it is quite common to hear it.

In fact, it was so common that the people’s of Taos and sufferers banded together in 1993 and petitioned the American Congress to investigate the source of this annoyance. In 1997 Congress did direct a dozen or more scientists and researchers from some of the most recognized institutions in the country to investigate. One reason for this was the allegation that the Taos Hum was possibly the result of military activity -covert or otherwise.

A side effect of this allegation was that the inquiry was conducted openly and involved a large number of people.

Unfortunately, even the most elite scientist can not find any obvius source of the sound.

Some especulations are been proposed

One include high-pressure gas lines, electrical power lines, wireless communication devices or other sources. But only in a few cases has a Hum been linked to a mechanical or electrical source.

There's some speculation that the Hum could be the result of low-frequency electromagnetic radiation, audible only to some people. And there are verified cases in which individuals have particular sensitivities to signals outside the normal range of human hearing.

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