Imagine a sound you can never turn off. A low rumble, like a diesel truck idling far down the road, except it never drives away. It follows you into your house. It is loudest at night.
That is what a small share of the people of Taos, New Mexico, began reporting in the early 1990s. Not everyone. Roughly two in a hundred. The rest heard nothing at all.
The complaints got loud enough that in 1993 the people of Taos asked their congressman for help, and a team of scientists from the University of New Mexico, Los Alamos National Laboratory and Sandia came to find the source. They set up sensitive instruments across the valley. They interviewed the hearers, who described the sound with striking consistency. Then they went looking for the signal.
They never found one.
No vibration in the ground. No sound in the air that matched. Nothing from the power grid, the gas lines, or the military. The hearers were not making it up, the researchers said, but whatever they were hearing was not coming from anywhere the instruments could reach.
The hum became famous, and the same sound has since been reported in Bristol, England, in Windsor, Ontario and in Kokomo, Indiana. Some blame low frequency military communication. Some blame the Earth itself. Some say the sound is being generated inside the hearers’ own heads.
What if some people are tuned to a frequency the rest of us were never built to receive.
A trick of the ear, or a signal nobody has admitted to sending?




