I had that same image, and they were traveling the straightest distance between two short lines.
In that case, since I had it first, you owe me royalties.
"I had that same image, and they were traveling the straightest distance between two short lines."
Funny. I had a totally different image. In the 5th dimension, tesseract, the shortest distance is not between two straight lines.
http://www.sparknotes.com/lit/wrinkle/section5.rhtml