Whiteout (weather) moving. Local, short-duration whiteout conditions can be created artificially in the vicinity of airports and helipads due to aircraft operations. Snow on the ground can be stirred up by helicopter rotor down-wash or airplane jet blast, presenting hazards to both aircraft and bystanders on the ground. Whiteout (weather) Whiteout is a weather condition in which visibility and contrast are severely reduced by snow or sand. The horizon disappears from view while the sky and landscape appear featureless, leaving no points of visual reference by which to navigate. Whiteout has been defined as: "A condition of diffuse light when no shadows
Fear of medical procedures higher than fear in adults (ages 26–79) showing that over the years, with maturity the fear of dental work decreases. Still many are making appointments and breaking them or not making them at all, leading to a deterioration of their dental condition. Two of the most common fears of medical procedures are the fear of doctors and the fear of needles. These simple fears, when not overcome by patients, either by themselves or with medical help, can cause great problems in the future for their health. People of all ages deal with fear of doctors (iatrophobia). Children often express fear