There are certain barriers to effective communication that every organization faces. These potential interruptions of the flow of information are referred to as noise. Communicative problems (i.e., noise) can be categorized into three groups: technical, semantic, or efficacy-related.
Polarized vs Non-Polarized Aviator Sunglasses. For most people wearing polarized sunglasses it simply helps reduce glare off windows, ice or water; however, for pilots using polarized sunglasses there can be a number of serious problems.
The exit pupil relates to how well a binocular will perform in dim light. If you hold binoculars away from your eyes and up to the light, you will see a bright circle in the center of the eyepiece. The exact size can be measured by dividing the objective lens by the magnification of the binoculars.