Noise pollution

What Is the Mysterious ‘Global Hum’ – and Is It Simply Noise Pollution?

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Up to 4% of people are said to hear a strange low-pitched noise known as the Hum, but no source has ever been found. City life is one possible cause. The Guardian Philip Jaekl Could air traffic be a cause of the Hum? … An airplane prepares to land at Heathrow airport. Photo by Chris …

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Scientists Discover Mysterious Radio Signal From Space That Is Repeating Every 16 Days

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Scientists have honed in on a mysterious radio signal coming from space that repeats itself every 16 days. Could this mysterious signal be coming from an alien life form trying to make contact with us? Find out in our new amazing video where we discover what kind of crazy frequency the scientists were picking up! …

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