User talk:Avicennasis/Books/Strange and Interesting

List of unexplained sounds:

Specific

 * Bloop
 * Julia
 * Slow Down
 * Train
 * Upsweep ('Upsweep' may have been tracked to an undersea South Pacific mountain that was not previously identified as "live", although this is still unconfirmed. )
 * Whistle

Non-specific

 * The Hum
 * Mistpouffers
 * Unexplained booms