alistair
Jul2-04, 05:32 AM
<jabberwocky><div class="vbmenu_control"><a href="jabberwocky:;" onClick="newWindow=window.open('','usenetCode','toolbar=no,location=no,scrollbars=yes,resizable=yes,status=no,width=650,height=400'); newWindow.document.write('<HTML><HEAD><TITLE>Usenet ASCII</TITLE></HEAD><BODY topmargin=0 leftmargin=0 BGCOLOR=#F1F1F1><table border=0 width=625><td bgcolor=midnightblue><font color=#F1F1F1>This Usenet message\'s original ASCII form: </font></td></tr><tr><td width=449><br><br><font face=courier><UL><PRE>\n\nUlmo asked:\n>With a rotating black hole, what is rotating?\n\n\nAlistair says:\n\nWhen the Earth rotates it bulges at the equator.\nDoes something similar happen to the event horizon\nof a rotating black hole - does the event horizon bulge?\nAnd can a single particle spinning on its axis cause frame-dragging?\n</UL></PRE></font></td></tr></table></BODY><HTML>');"> <IMG SRC=/images/buttons/ip.gif BORDER=0 ALIGN=CENTER ALT="View this Usenet post in original ASCII form"> View this Usenet post in original ASCII form </a></div><P></jabberwocky>Ulmo asked:
>With a rotating black hole, what is rotating?
Alistair says:
When the Earth rotates it bulges at the equator.
Does something similar happen to the event horizon
of a rotating black hole - does the event horizon bulge?
And can a single particle spinning on its axis cause frame-dragging?
>With a rotating black hole, what is rotating?
Alistair says:
When the Earth rotates it bulges at the equator.
Does something similar happen to the event horizon
of a rotating black hole - does the event horizon bulge?
And can a single particle spinning on its axis cause frame-dragging?