<div style="margin: 12px 0px; font-family: arial; color: #333333; background: #ffffff; border: solid 4px #e5e5e5; width: 100%; clear: left;"><div class="CM_CTB_Content_Wrap" style="margin: 0px; padding: 0px;background-color:#cc99cc;"><div style="border-bottom: solid 1px #dcdcdc; white-space: nowrap; margin-bottom: 8px; background-color: #eeeeee ;background-image: url(http://clipmarks.com/images/source-bg.gif); background-repeat: repeat-x; height: 24px; line-height: 24px; vertical-align: middle; padding-bottom: 4px; color: #666666; font-size: 10px;" ><a href="http://clipmarks.com/clip-to-blog/" title="see clips that are hot right now"><img src="http://content.clipmarks.com/blog_embed/aee8798d-c117-4c43-8433-5ac38848aa25/CE548476-5D5E-4D41-8FE4-D75ECFD3A9A7/" alt="" width="19" height="19" border="0" style="vertical-align: middle; margin: 0px 4px; display: inline; border: none; float:none;" /></a>clipped from <a title="http://en.wikipedia.org/w/index.php?title=Lilac_chaser&oldid=280051931" href="http://en.wikipedia.org/w/index.php?title=Lilac_chaser&oldid=280051931" style="font-size: 11px;">en.wikipedia.org</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://en.wikipedia.org/w/index.php?title=Lilac_chaser&oldid=280051931"><SPAN>Lilac chaser</SPAN></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://en.wikipedia.org/w/index.php?title=Lilac_chaser&oldid=280051931"><div align="center"><img src="http://content7.clipmarks.com/blog_cache/en.wikipedia.org/img/0DD57036-BEE0-4889-A23B-2D393ED14FBE" alt="" /></div></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://en.wikipedia.org/w/index.php?title=Lilac_chaser&oldid=280051931">also known as the <B><A title="Pac-Man" href="http://en.wikipedia.org/wiki/Pac-Man" linkindex="8">Pac-Man</A> illusion</B>. It consists of 12 <A title="Lilac (color)" href="http://en.wikipedia.org/wiki/Lilac_(color)" linkindex="9">lilac</A> (or <A title="Pink" href="http://en.wikipedia.org/wiki/Pink" linkindex="10">pink</A>, <A title="Rose (color)" href="http://en.wikipedia.org/wiki/Rose_(color)" linkindex="11">rose</A> or <A title="Magenta" href="http://en.wikipedia.org/wiki/Magenta" linkindex="12">magenta</A>), blurred disks arranged in a circle (like the numbers on a <A title="Clock" href="http://en.wikipedia.org/wiki/Clock" linkindex="13">clock</A>), around a small black, central cross on a <A title="Grey" href="http://en.wikipedia.org/wiki/Grey" linkindex="14">grey</A> background. One of the disks disappears briefly (for about 0.1 second), then the next (about 0.125 second later), and the next, and so on, in a clockwise direction. When one stares at the cross for about 20 seconds or so, one first sees a gap running around the circle of lilac disks, then a green disk running around the circle of lilac disks, then a <A title="Green" href="http://en.wikipedia.org/wiki/Green" linkindex="15">green</A> disk running around on the grey background, the lilac disks having disappeared or having been erased by the green disk. This is due to an interesting effect in which the colors of the lilac disks are inverted in the optical illusion to a green color.</blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://en.wikipedia.org/w/index.php?title=Lilac_chaser&oldid=280051931"><P>An interactive version of the illusion may be found <A rel="nofollow" title="http://www.michaelbach.de/ot/col_lilacChaser/index.html" class="external text" href="http://www.michaelbach.de/ot/col_lilacChaser/index.html" linkindex="16">here</A>. This version allows viewers to adjust the <A title="Color" href="http://en.wikipedia.org/wiki/Color" linkindex="17">color</A>, <A class="mw-redirect" title="Saturation (color theory)" href="http://en.wikipedia.org/wiki/Saturation_(color_theory)" linkindex="18">saturation</A>, and timing of the disks.</P></blockquote></div><div style="margin: 0px 6px 6px 4px;"><table style="font-size: 11px;border-spacing: 0px;padding: 0px;" cellpadding="0" cellspacing="0" width="100%"><tr><td style="background:transparent;border-width:0px;padding:0px;">&nbsp;</td><td align="right" style="background:transparent;border-width:0px;padding:0px;width:107px" width="107"><a href="http://clipmarks.com/share/CE548476-5D5E-4D41-8FE4-D75ECFD3A9A7/blog/" title="blog or email this clip"><img src="http://content8.clipmarks.com/images/c2b-foot.png" border="0" alt="blog it" width="107" height="17" style="border-width:0px;padding:0px;margin:0px;" /></a></td></tr></table></div></div>

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