Diving Mask

A diving mask (also dive mask or scuba mask) is an item of diving equipment that allows scuba divers, free-divers, and snorkelers to see clearly underwater. When the human eye is in direct contact with water as opposed to air, its normal environment, light entering the eye is refracted by a different angle and the eye is unable to focus the light. By providing an air space in front of the eyes, light enters normally and the eye is able to focus correctly.

Read more about Diving Mask:  Construction, Use, Types of Diving Mask, Related Equipment

Famous quotes containing the words diving and/or mask:

    all the fine
    Points of diving feet together toes pointed hands shaped right
    To insert her into water like a needle
    James Dickey (b. 1923)

    We never really are the adults we pretend to be. We wear the mask and perhaps the clothes and posture of grown-ups, but inside our skin we are never as wise or as sure or as strong as we want to convince ourselves and others we are. We may fool all the rest of the people all of the time, but we never fool our parents. They can see behind the mask of adulthood. To her mommy and daddy, the empress never has on any clothes—and knows it.
    Frank Pittman (20th century)