Why does it sound like the ocean if you hold a seashell up to your ear?

Question

Why does it sound like the ocean if you hold a seashell up to your ear?

Answer 1

the shell is actually saying "why don't you join this handsome man for a Bud Light"

http://www.youtube.com/watch?v=iWIcm1XN8...

Answer 2

It’s the eco of the blood in your ear (it works with a lot of objects)

Answer 3

THE WIND ITS JUST LIKE AN ECO IN A CANYON BUT SMALLER ,