What makes it particularly strange is that only certain people can hear it, while others remain blissfully unaware. It’s ...
YourTango on MSN
There’s A Certain Sound That Makes 2% Of People Lose Their Minds — Are You One Of Them?
The hum is a low-frequency humming or a rumbling sound, like a truck idling, that only 2-5% of the population can hear. Hum ...
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