Russian Orthodox cross is also called just Orthodox cross. At the same time the Orthodox churches use different crosses and any of them is called "Orthodox cross". Moreover, there are no such crosses like just "Orthodox" or "Catholic", each type of cross is a feature of local tradition. The cross has three horizontal crossbeams — the top one represents the plate which in the older Greek tradition is inscribed with a phrase based on John's Gospel "The King of Glory", but in later images it represents , and the bottom one, a footrest. In many depictions, the side to Christ's right is higher.
Vertical–horizontal illusion social learning differences between men and women. Functional applications of vertical–horizontal illusion exist. Elliot et al. studied the effects of the horizontal and vertical illusion, and how the perceived illusion can influence visuo-motor coordination, i.e. motor activity dependent on sight. The study specifically focused on how the perceived height of a step, manipulated by the vertical and horizontal illusion, influenced stepping strategy as shown in toe elevation during step clearance. Their results showed an increased toe elevation in conditions where an illusion was perceived, leading them to conclude that there was a correlation between visual illusion and visuo-motor coordination. This