A simulation may be performed through (1) solving a set of equations (a mathematical model), constructing a physical (scale) model, (3) staged rehearsal, (4) game (such as wargames), or a computer graphics model (such as an animated flowchart).
Thigh gap. A thigh gap is a space between the inner thighs of some women when standing upright with knees touching. A thigh gap has become an aspect of physical attractiveness that has been associated with fragility and femininity. In the United States, it has been reported that among teenage girls, a gap has become a beauty ideal.
What is A-Gap? In football this refers to the space between the center and the left or right guard. When a running play is called generally it will specify which gap the runner should hit. Conversely a defending player might 'shoot the gap' and exploit the space between offensive lineman.