Scientists record the Earth's mysterious hum

[UM-Bot]

Our planet is making a continuous low humming sound and nobody is quite sure what is causing it.

http://www.unexplained-mysteries.com/news/313963/scientists-record-the-earths-mysterious-hum

[bison]

Scarcely a 'hum', as the term is generally understood. Such contractions would occur every 3 minutes, 42 seconds to 5 minutes, 45 seconds. Wind-driven gravity waves* in the sea are strongest at the same range of frequencies, so are probably connected to this phenomenon.

*Not to be confused with astrophysical gravitational waves. 

Edited December 8, 2017 by bison
added information

[ExoPaul]

I wonder if the hum could one day be detectable on other planets?

[BeastieRunner]

1 hour ago, seanjo said:

It's the constant whine of left-wing ****wits.

The irony of whining about whiners must be lost on you.

[geraldnewfie]

thats the upside down trying to get through :P

[eddword]

Hmmmm,..I think I feel more like I do now,...Than I did, when I first got here...How about you?

[docyabut2]

https://en.wikipedia.org/wiki/List_of_unexplained_sounds

Could be many sounds.

[DirtyDocMartens]

21 hours ago, seanjo said:

It's the constant whine of left-wing ****wits.

Why do have to be like that? Surely there's somewhere on the Internet that's more appropriate than this forum. Okay, now go ahead and predictably insult me or make some cliche comment. 

[DirtyDocMartens]

20 hours ago, seanjo said:

Sorry, Friday night and I was drunk.

Lol, been there, man. No worries.

[paperdyer]

Maybe it's the whine of the planet's mainspring winding down like a clock.  Remember we only have 600 years left. We need to find the key to rewind the planet.

[BeastieRunner]

1 hour ago, paperdyer said:

Maybe it's the whine of the planet's mainspring winding down like a clock.  Remember we only have 600 years left. We need to find the key to rewind the planet.

I like this one best.