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.
1 Keep a clean dressing on your wound. 2  Dressings keep the wound warm and moist, keep out germs and protect the wound from injury. 3  They also help absorb fluid that drains from the wound and could damage the skin around it. 4  Be careful. 5  Protect the wound from trauma or injury. 6  Donât let anything touch it or bump it.