the cause of the hum, the low-frequency, mysterious sound that was released steadily and only 2% of the world's population heard in isolated places so far remains a mystery to
in the world there are some strange kinds of sounds that science cannot explain, emanating from large waters, deep seabeds, in the universe like wow signals, the sounds of planets,
the bizarre sound phenomenon is contrary to the laws of physics resounding from a mysterious circle on a walking bridge in tulsa, oklahoma (usa) which is one of the most difficult
discovered by ultra-sensitive radio equipment from the 1950s, mysterious cosmic sounds called whistler waves were finally deciphered successfully by nasa scientists after nearly