The Hum

The Hum refers to a persistent low-frequency sound heard by a small percentage of the population in specific locations worldwide. Described as a distant diesel engine idling, this mysterious vibration—reported in places like Taos, New Mexico, and Bristol, England—has no verified source. Despite extensive studies, scientists remain divided on its origin, with theories ranging from industrial equipment and electromagnetic radiation to geological activity or even mass psychogenic phenomena. Its eerie consistency and selective audibility continue to baffle researchers, making it one of the most intriguing and elusive acoustic mysteries of the modern era.