For wood, a radial cut follows the longitudinal grain and is perpendicular to the growth rings. Radial cuts on a cake would produce a set of pie-shaped pieces. Growth rings are seen as parallel lines and rays are seen as streaks.
Resources and Citations
- Encyclopedia Britannica, http://www.britannica.com Comment: Wood. Retrieved June 24, 2004.
- R. Bruce Hoadley, Identifying Wood, The Taunton Press, Newton, CT, 1990