At a special angle known as Brewster's angle, no p-polarized light is reflected from the surface, thus all reflected light must be s-polarized, with an electric field perpendicular to the plane of incidence. A simple linear polarizer can be made by tilting a stack of glass plates at Brewster's angle to the beam.
In this particular instance, we would start off by measuring the wound in the length dimension. Where there is the maximum length of this wound of approximately 5.7 centimeters. The width would then be measured at its maximum point of width which is 2.5 centimeters. The depth we then would determine by probing the wound with our cotton-tipped applicator using the cotton end.
Continue the process until the wound is completely closed. Each staple should be placed about 3 mm to 5 mm from the previous one, until the wound is completely closed. For lacerations longer than about 10 cm, place the first staple in the middle of the wound to line up the edges more precisely. Place subsequent staples above and below the first one until the wound is closed.