DIVINGMASK

Diving mask

A diving 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.

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diving mask

Noun

  1. A mask worn by divers underwater over the eyes or face to allow them to see clearly underwater, having a watertight seal around its edges to hold it securely to the face.


The above text is a snippet from Wiktionary: diving mask
and as such is available under the Creative Commons Attribution/Share-Alike License.

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