Glow stick

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noun - A glow stick is a self-contained, short-term light source used by channel swimmers and marathon swimmers who attempt open water swims during low-visibility conditions, the dark or nighttime hours or navigational and safety purposes. Glow sticks are available in a wide variety of colors and consists of a translucent plastic tube containing isolated substances that make light through chemiluminescence. The glow sticks do not require an external energy source, but the light cannot be turned off and can be used only once.

Glow sticks are worn not only by the swimmer, but also by their kayakers and paddlers on channel swims. The coach recommended using the green-colored glow sticks during his channel attempt.

[edit] Synonyms

Chemical Light, safety glow stick

[edit] External links

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