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2. Dive light - Wikipedia

   en.wikipedia.org/wiki/Dive_light

   The United States Navy Experimental Diving Unit continues to evaluate dive lights for wet and dry illumination output, battery duration, watertight integrity, as well as maximum operating depth. [5] Halogen bulbs came into use in the latter decades of the 20th century as they produced more light for the power used.

3. Diving equipment - Wikipedia

   en.wikipedia.org/wiki/Diving_equipment

   Diving equipment, or underwater diving equipment, is equipment used by underwater divers to make diving activities possible, easier, safer and/or more comfortable. This may be equipment primarily intended for this purpose, or equipment intended for other purposes which is found to be suitable for diving use.

4. Portal:Underwater diving - Wikipedia

   en.wikipedia.org/wiki/Portal:Underwater_diving

   The scope of this portal includes the technology supporting diving activities, the physiological and medical aspects of diving, the skills and procedures of diving and the training and registration of divers, underwater activities which are to some degree dependent on diving, economical, commercial, safety, and legal aspects of diving, biographical information on notable divers, inventors and ...

5. Don’t Miss Out on the Mega-Comfy Green Sneakers Helen ... - AOL

   www.aol.com/entertainment/don-t-miss-mega-comfy...

   Get the OCA Low sneaker for just $79 at Cariuma! The green shade is such an awesome pick for spring and summer, but it’s far from the only color available. There are nine others as well.

6. Underwater vision - Wikipedia

   en.wikipedia.org/wiki/Underwater_vision

   a. Any fluorescent in the yellows, oranges, and reds. b. Regular yellow, orange, and white. 2. With a mercury light source: a. Fluorescent yellow-green and yellow-orange. b. Regular yellow and white. C. For clear water (southern water, [clarification needed] deep water offshore, etc.). 1. With any type of illumination fluorescent paints are ...

7. Underwater diving - Wikipedia

   en.wikipedia.org/wiki/Underwater_diving

   Open-water diving implies that if a problem arises, the diver can directly ascend vertically to the atmosphere to breathe air. [114] Wall diving is done along a near vertical face. Blue-water diving is done in good visibility in mid-water where the bottom is out of sight of the diver and there may be no fixed visual reference. [115]