Taos Hum Page
- http://www.eskimo.com/~billb/hum/hum.html
- Information and links about the "Taos Hum," a low throbbing sound heard in quiet locations worldwide, especially in the USA, UK, and northern Europe. It is not detectable by microphones or VLF antennae, and the source is still a mystery.
The Hum
- http://homepages.tesco.net/~John.Dawes2/
- Investigation into the cause and adverse health effects of the Bristol Hum, an obnoxious low-frequency noise heard in England. Conclusion is that the hum is due to a pulsed electrical signal.