Editing Rock paper scissors (section)

=== Mechanical devices and geometrical constructions ===
In the televised [[robot combat]] competition ''[[BattleBots]]'', relations between "lifters, which had wedged sides and could use forklift-like prongs to flip pure wedges", "spinners, which were smooth, circular wedges with blades on their bottom side for disabling and breaking lifters", and "pure wedges, which could still flip spinners" are analogical to relations in rock paper scissors games and called "robot Darwinism".<ref>{{cite web| url = http://www.popsci.com/technology/article/2013-06/elaborate-history-how-wedges-ruined-battlebots| title = Atherton, K. D. (2013). A brief history of the demise of battle bots. Popular science.| date = 19 June 2013| access-date = 1 December 2018| archive-date = 13 September 2017| archive-url = https://web.archive.org/web/20170913013037/http://www.popsci.com/technology/article/2013-06/elaborate-history-how-wedges-ruined-battlebots| url-status = live}}</ref>