Subject: Can sound travel through any medium? How? Why? -xtra specific in comments

Can sound travel like a vector[direction and speed] if so, are we able to
control that variable and any integer of magnitude as long as there are of a
recoil force. So if sound is created by vibration, what creates these vibration?
[friction?] How  can we create friction? [speed interacting with a medium?]
[atoms moving aganist each other?] Is it possble for sound to create physical
energy from vibrations? Can air molecules actually vibrate so quickly it can be
shown as a physical force? 

Re: Can sound travel through any medium? How? Why? -xtra specific in comments