Talk:Cruising rod

Sewage pipes
The sentence about sewage pipes is confusing. I can't make heads or tails of what it means. Can anybody clarify?  Stepho  (talk) 03:19, 2 December 2009 (UTC)

Computing device
The cruising rod takes the width of a log and using ratios (ie by multiplication/division) calculates the number of pieces of lumber that it can be cut into. That makes it a self-evident computing device - although of the simplest kind.  Stepho  talk 23:09, 10 July 2018 (UTC)
 * calculates the number No it does not. Please do not waste time arguing, just provide a reference. Staszek Lem (talk) 23:22, 10 July 2018 (UTC)