braille picture ¼ size
Reduce Lifelike Elements
I wouldn't want my readers having to waste time puzzling over
the professor's head.
Lightpoint A, 2 meters from screen; ball with center B, radius 30cm;
line AB perpendicular to screen, AB=1m.
Copyright © 1989-2002 Marco Schuffelen
Last modified: Sat Dec 29 13:40:44 PST 2001