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.
Invisible Light (UVA and UVB) Sunglasses can also block ultraviolet (UV) light that is invisible to humans. Two types of UV light can penetrate the atmosphere and reach the eye: UVB and UVA.