Straight Lines: Selected Reviews

Richard D. Flavin

In mathematics two points are connected by a "right" or straight line, in the study of ancient rock art straight lines are regarded as decorative or numerical tallies, and among the Irish, straight lines were used to represent the letters of the oghamic alphabet. Determining a new meaning for an old straight line should be simple, but isn't. Clever claims have contributed to the popularity of various "straight lines", unfortunately science doesn't reward theories based upon how many books or publications are sold. While science still has much to offer with further investigation, a better understanding of many "straight lines" awaits.