Psycoloquy authors/readers are invited to prepare and submit a Web-useable moving graphic image of Tycho's diagram using animation or a Java applet. The first successful working model submitted will be published in Psycoloquy with credit as part of commentary on the just- published target article: Target article: Margolis, H. Tycho's Illusion: How It Lasted 400 Years, And What That Implies About Human Cognition PSYCOLOQUY 9(32) Thursday July 16 1998 Commentaries to date: Harris, L. The Mars/Sun Collision Illusion: Motion Is Not Visualizable In Two Different Reference Frames Simultaneously PSYCOLOQUY 9(33) Thursday July 23 1998 Pearson, D. Imagery Need Not Be Blind to Fail PSYCOLOQUY 9(34) Thursday July 23 1998 UK URL for the Margolis target article (hypertext version): http://www.cogsci.soton.ac.uk/psyc-bin/ptopic?topic=Cognitive-illusion&… US URL for Margolis target article (ftp version) ftp://ftp.princeton.edu/pub/harnad/Psycoloquy/1998.volume.9/psyc.98.9.32.co… URLs for Tycho's Diagram: UK: ftp://coglit.psy.soton.ac.uk/pub/psycoloquy/1998.volume.9/Pictures/margolis.fig5.html US: ftp://ftp.princeton.edu/pub/harnad/Psycoloquy/1998.volume.9/Pictures/margol… -------------------------------------------------------------------- Stevan Harnad harnad(a)cogsci.soton.ac.uk Professor of Psychology harnad(a)princeton.edu Director, phone: +44 1703 592582 Cognitive Sciences Centre fax: +44 1703 594597 Department of Psychology http://www.cogsci.soton.ac.uk/~harnad/ University of Southampton http://www.princeton.edu/~harnad/ Highfield, Southampton ftp://ftp.princeton.edu/pub/harnad/ SO17 1BJ UNITED KINGDOM ftp://cogsci.soton.ac.uk/pub/harnad/