UK, Cambridge. cb25 9hz · 2019-04-28 · from the WORLDHUMMAP archive
A low hum in UK, Cambridge. cb25 9hz
droning oscillating hum, rhythmically varying in volume; it seems to cause my head to vibrate. I have simulated the sound with 4 tone generators emitting similar frequencies concurrently. The beating causes the volume fluctuations. Don't drink the tap (fawcet) water.
What they reported
First noticed: 2001
Pitch: 62, 62.3, 62.5, 61.5 combined
Loudest: Equal night and day
Where: Equal indoors and outdoors
Symptoms: Ear discomfort (pain, fullness, throbbing), Sense of vibration, Anxiety
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both described a low hum · 106 km away
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This is a Hum report from Dr Glen MacPherson's World Hum Map, an open, worldwide record of people who hear an unexplained low-frequency hum. Reproduced with permission and with thanks; the project is at thehum.info. We remove anything on request. Location shown is approximate.
Anomaly