Film using early computer graphics to demonstrate scientific concepts on electromagnetic charges. A graph appears on the screen. Numerical formulas are on either side of an XY axis. A curved line appears on the graph. Then an object with a bright center and lines emanating from the center appears. Shot of the graph. A dot appears on the curved line. Next is the object with the bright center with lines. Lines are growing from the center on the left and shrinking on the right. Back to graph. Lines are growing the left of the bright center. One line appears. .99 is reflected on the graph