Apple QuickTime movie | 1996-09-01 | 2.6 MB | 160x120 | 15fps | 14 seconds | [MooV/TVOD]
Transcription: That's what we call a configuration, when you've got a certain number of points and a certain number of lines, and the same number of lines through each point, and the same number of points on each line. So this is 21-4.
(.mp4)