<HTML><BODY STYLE="font:10pt verdana; border:none;"><DIV>Matt</DIV> <DIV>What you said I don't understand, because if the first roll starts at horizontal and ends at KE and the next 1/4 roll starts at KE and ends at horizontal the center isn't in the middle of KE.</DIV> <DIV> </DIV> <DIV>Am I DUH?</DIV> <DIV>Jim Ivey</DIV> <BLOCKQUOTE style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px"> <DIV style="FONT: 10pt Arial">----- Original Message -----</DIV> <DIV style="BACKGROUND: #e4e4e4; FONT: 10pt Arial; COLOR: black"><B>From:</B> Rcmaster199@aol.com</DIV> <DIV style="FONT: 10pt Arial"><B>Sent:</B> Friday, June 20, 2003 10:06 PM</DIV> <DIV style="FONT: 10pt Arial"><B>To:</B> discussion@nsrca.org</DIV> <DIV style="FONT: 10pt Arial"><B>Subject:</B> Re: Friday Night Masters' Question</DIV> <DIV> </DIV><FONT face=arial,helvetica><FONT lang=0 face=Arial size=2 FAMILY="SANSSERIF">In a message dated 6/20/2003 9:48:00 PM Eastern Daylight Time, geobet@gis.net writes:<BR><BR><BR> <BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #0000ff 2px solid; MARGIN-RIGHT: 0px" TYPE="CITE">Subj:<B>Re: Friday Night Masters' Question </B><BR>Date:6/20/2003 9:48:00 PM Eastern Daylight Time<BR>From:<A href="mailto:geobet@gis.net">geobet@gis.net</A><BR>Reply-to:<A href="mailto:discussion@nsrca.org">discussion@nsrca.org</A><BR>To:<A href="mailto:discussion@nsrca.org">discussion@nsrca.org</A><BR><I>Sent from the Internet </I><BR><BR><BR><BR>Jim, <BR>I think this one's the end of the K.E.portion of the roll, just at the point when you initiate the second half of the roll. <BR>Georgie jim ivey wrote: <BR> <BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #0000ff 2px solid; MARGIN-RIGHT: 0px" TYPE="CITE">Sorry Bob I miss read your question. I think knife edge is center of the 4 of 8 point. Now Let me ask. Where is center of the cuban 8 with 2 of 4 points. My last thread refers to this question.Jim Ivey <BR> <BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #0000ff 2px solid; MARGIN-RIGHT: 0px" TYPE="CITE">----- Original Message -----<BR></BLOCKQUOTE><BR></BLOCKQUOTE><BR></BLOCKQUOTE><BR><BR>Georgie,<BR><BR>Any roll starts and ends with a rolling element. <BR><BR>The 2 of 4 starts the instant the first 1/4 roll is started and ends the instant the second 1/4 roll ends. <BR><BR>Split the distance between those two events and you have the middle of the knife edge, however short or long it may be.<BR><BR>matt</FONT> </BLOCKQUOTE></FONT></BODY></HTML>