Yes, what you mention about recording stellar sound and playing it back
into sand to produce an image of the nebula, was done by Dr. Peter Guy
Manners.
I know it blew me away when I heard it...took notes and need to get them
all together...I've been trying to get a chance to work on a cymatics
section of KeelyNet that will include most of this material. In my
opinion, it is a key to how the universe is formed, sustained and
changes, all via phase conjugation using constructive and destructive
interference.
-- Jerry W. Decker / jdecker@keelynet.com http://keelynet.com / "From an Art to a Science" Voice : (214) 324-8741 / FAX : (214) 324-3501 KeelyNet - PO BOX 870716 - Mesquite - Republic of Texas - 75187