<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta content="text/html;charset=UTF-8" http-equiv="Content-Type"> <title></title> </head> <body bgcolor="#ffffff" text="#000000"> <big><big><big><big>Sound in a vacuum? No. But this was talking about sound in gas jets which presumably had some pressure, or they wouldn't be -- jetting. Still sounds seriously weird, of course. But black holes themselves are more than slightly weird. I think what we are seeing is a statement about extremely arcane scientific observations, which got dumbed down for the great unwashed -- aka, US. s </big></big></big></big> Mark Schecter wrote: <blockquote cite="mid:F29DBEEF-5941-41AC-AF99-B43C4B7485AD@schecterpiano.com" type="cite"> <pre wrap="">Sorry about the extraneous gobbledy-gook. Corrected below … ~Mark Schecter On Aug 15, 2012, at 7:55 PM, Mark Schecter <a class="moz-txt-link-rfc2396E" href="mailto:mark@schecterpiano.com"><mark@schecterpiano.com></a> wrote: </pre> <blockquote type="cite"> <pre wrap="">That "sounds" like a cross between a crocodile and an abalone. AKA a crock o' baloney. Sound in space? No … On Aug 15, 2012, at 7:29 PM, Noah Frere <a class="moz-txt-link-rfc2396E" href="mailto:noahfrere@gmail.com"><noahfrere@gmail.com></a> wrote: </pre> <blockquote type="cite"> <pre wrap="">"Repeated outbursts in the form of powerful jets from the black hole in the center of Perseus created giant cavities and produced sound waves with an incredibly deep B-flat note 57 octaves below middle C, which, in turn, keeps the gas hot." </pre> </blockquote> </blockquote> <pre wrap=""> </pre> </blockquote> </body> </html>