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Specialties

• Altitude Diver
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Junior Diving: 10 - 14 yrs

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  • Bags - Cases
    • UK
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    • Scuba Pro
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  • Consoles
    • Suunto
      • CB One Pressure Gauge
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      • SM-36 300 bar
    • Scuba Pro
      • Compact 3
      • Compact North FS-2 Compass
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      • Compact Pressure Gauge
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  • Accessories
    • OMS
      • Bookscrew
      • Cavern Reel
      • Compact quick dump pocket (pair)
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      • Silicone Tubing: 1/4
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    • PADI
      • E.A.R. Pocket Mask with O2 Inlet
    • Spare Air
      • Model 170 PKYEL
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    • Books
      • Similan Dive Site Information
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    • General
      • Auto Stop Wreck Reel
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      • Multitool 12 Tools S. Steel
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      • Scuba Alert Signal Device
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  • Knives
    • UK
      • Blue Tank Hydralloy
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    • OMS
      • Line Cutter
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    • Saekodive
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    • Scuba Pro
      • Mako Knife - Titanium
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  • Boots
    • Scuba Pro
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  • Gloves
    • Scuba Pro
      • Tropic Amara Sport
    • Seac Sub
      • Tropic HD Gloves
  • Underwater Cameras
    • Intova
      • 12MP Compact Digital Camera w. 54m Housing
      • 9MP Compact Digital Camera w. 54m Housing
    • Sea & Sea
      • Camera 1200HD & DX-1200HD Housing
      • DX-2G Camera & Housing
  • Camera Accessories
    • Sea & Sea
      • 5-pin Dual Sync Cord N
      • 5-pin Sync Cord N
      • Bracket Shoe
      • Hot Shoe Arm
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      • Sea Arm VII Set
      • Silicone Grease
      • YS-250 Pro Strobe
    • Intova
      • Camera Care Kit
      • Fiber Optic Cable
      • IC12 Battery
      • Intova Flash Difusor
      • Intova Red Filter
  • Digital SLR Housings
    • DX-350D
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• Excursions
  • Golf Courses: Phuket
    • Red Mountain
    • Phuket Country Club
    • Mission Hills
    • Laguna
    • Blue Canyon (Lakes)
    • Loch Palm
    • Blue Canyon (Canyon)
  • Spas
    • Test 2
    • Green Hill Course
    • Test Course
• Photo Gallery
• Partners
• General Information
  • Similan Dive Sites
    • Anita's Reef
    • Beacon Reef
    • Boonsung Wreck
    • Boulder City
    • Breakfast Bend
    • Christmas Point
    • Deep Six
    • Donald Duck Bay
    • East Of Eden
    • Elephant Head Rock
    • Honeymoon Bay
    • Koh Bon
    • Richelieu Rock
    • Rocky Point
    • Shark Fin Reef
    • Tachai Pinnacle
    • Tachai Reef
    • Turtle Rock
    • Waterfall Bay
    • West Of Eden
  • Fish/Coral Information
    • A
      • African Butterflyfish
      • African Grouper
      • Algae
      • Allard's anemonefish
      • Andaman rabbitfish
      • Angelfish
      • Anglerfish.
    • B
      • Banded mantis shrimp
      • Banded sea snake
      • Banded snake eel
      • Barred moray
      • Batfish
      • Beau Vallon magnificent slug
      • Bicolour parrotfish
      • Big Eye Trevally
      • Big long-nose butterlyfish
      • Bigeye snapper
      • Bigfin reef squid
      • Bignose unicornfish
      • Bird Wrasse
      • Black and white snapper
      • Black diadema sea urchin
      • Black marlin
      • Black Trevally
      • Black-ray partner goby
      • Black-spotted puffer
      • Blacksaddle grouper
      • Blackspotted Hawkfish
      • Blackspotted torpedo
      • Blacktip reef shark
      • Blennies
      • Blotched fantail ray
      • Blue coral
      • Blue ringed Angelfish
      • Blue sea star
      • Blue trevally
      • Blue Triggerfish
      • Blue Whale
      • Blue-green damsel
      • Blue-yellow damsel
      • Bluegreen puller
      • Bluespotted sleeper goby
      • Bluespotted stingray
      • Borbon seahorse
      • Bowmouth guitarfish
      • boxer shrimp
      • Boxfish
      • Brain coral
      • Brown tang
      • Bubble-tip anemone
      • Burgundy partner goby
      • Burrowing giant clam
      • Butterfly ray
      • Butterflyfish
    • C
      • Cape seahorse
      • Catshark
      • Christmas wrasse
      • Circled-spine surgeonfish
      • Circular batfish
      • Clark's anemonefish
      • Cleaner shrimp
      • Cleaner Wrasse
      • Clearfin lionfish
      • Clown Anglerfish
      • Clown sand wrasse
      • Clown Triggerfish
      • Clownfish
      • Cobia
        • Feeding Habits
        • Life History
        • Migration patterns
        • Fishing Gear and Methods
        • Fishing Gear for Cobia
        • Utilization
      • Commerson's frogfish
      • Common Lionfish
      • Common porcupinefish
      • Common spider conch
      • Common spiny lobster
      • Convict surgeonfish
      • Cooper's fairy basslet
      • Coral
        • Environmental effects
      • Coral Grouper
      • Cornetfish
      • Crocodile needlefish
      • crowned squirrelfish
      • Crowned toby
      • Cube boxfish
      • Cuttlefish
    • D
      • Damselfish
      • Devil Scorpionfish
      • Dogtooth tuna
      • Dragonet
      • Dwarf hawkfish
    • E
      • Eclipse Butterflyfish
      • Eightline dwarf wrasse
      • Elongate surgeonfish
      • Emperor Angelfish
      • Emperor Snapper
    • F
      • Feather Star
        • Fossils of passing interest
        • Crinoid uses in culture
      • Feathertail stingray
      • Filefish
      • Fimbriated moray
      • Fire coral
      • Fire gobies
      • Flashlight fish
      • Flatworm
      • Flying Fish
      • Forster's hawkfish
      • Frogfish
    • G
      • Garden eel
      • Giant Anglerfish
      • Giant Grouper
      • Giant moray
      • Giant pufferfish
      • Giant Trevally
      • Gilded triggerfish
      • Goatfish
      • Gold-saddle rabbitfish
      • Goldbar wrasse
      • Golden Grouper
      • Golden Pilot jack
      • Goldribbon soapfish
      • Gorgonian sea fan
      • Great barracuda
      • Green Turtle
        • Distribution
        • Atlantic subpopulation
        • Indo-Pacific subpopulation
        • Ecology and life history
        • Habitat
        • Trophic ecology
        • Life history
        • Evolutionary history
        • Etymology and taxonomic history
        • Importance to Humans
        • Conservation
        • Global conservation initiatives
        • Country-specific conservation initiatives
      • Grey Reef Shark
        • Distribution and habitat
        • Description
        • Biology and ecology
        • Feeding
        • Life history
        • Behavior
        • Sociality
        • Threat display
        • Relationship to humans
      • Grouper
    • H
      • Halfmoon triggerfish
      • Harlequin Shrimp
      • Harlequin sweetlips
      • Hawkfish
      • Hawksbill turtle
        • Atlantic subpopulation
        • Indo-Pacific subpopulation
        • Habitat
        • Feeding ecology
        • Life history
        • Etymology and taxonomic history
        • Importance to humans
        • Conservation
      • Honeycomb moray
      • Honeycomb moray
      • Honeycomb whipray
      • Humbug Damsel
      • Humpback unicornfish
      • Humpback Whale
      • Humphead Parrotfish
    • I
      • Indian cushion sea star
      • Indian mimic surgeonfish
      • Indian Ocean Spinecheek
      • Indian smoke-angelfish
      • Indian teardrop butterflyfish
      • Indian triggerfish
    • J
      • Jawfish
      • Jellyfish
        • Jellyfish
        • Body systems
        • Jellyfish blooms
        • Life cycle
        • In captivity
        • Toxicity to humans
        • New discoveries
      • Jewel fairy basslet
      • Joshi's magnificent slug
    • K
      • King mackerel
        • Migration patterns
        • Life history
        • Feeding habits
        • Fishing gear and methods
        • Nutrition and processing
        • Similar species
      • Klein's Butterflyfish
      • Knysna Seahorse
      • Koran Angelfish
    • L
      • Leaf fish
      • Leathery turtle
      • Lemon Coral goby
      • Leopard moray eel
      • Leopard shark
      • Lined Blenny
      • Lined butterflyfish
      • Lined neon slug
      • Lined surgeonfish
      • Lionfish.
      • Lobster
      • Loch's magnificent slug
      • Longfin Bannerfish
      • Longfin batfish
      • Longnose filefish
      • Longnose hawkfish
    • M
      • Madagascar butterflyfish
      • Maldives anemonefish
      • Mangrove red snapper
      • Mangrove whipray
      • Manta Ray.
      • Map cone shell
      • Mappa puffer
      • Marbled torpedo ray
      • Marley's butterflyfish
      • Masked porcupinefish
      • Mauritius anemonefish
      • Mauritius neon slug
      • Mauritius scorpionfish
      • Mauritius tang
      • McCosker's dwarf wrasse
      • Megamouth shark
      • Merten's carpet sea anemone
      • Meyer's butterflyfish
      • Midas blenny
      • Milkfish.
      • Mimic sabretooth blenny
      • Minke Whale
      • Mole cowrie
      • Monocle hawkfish
      • Moon wrasse
      • Moorish Idol
      • Moray eel.
      • Mushroom Coral
      • Myrichthys colubrinus
      • Myripristis vittata
    • N
      • Napoleon wrasse
      • Needlefish.
      • Northern Indian anemonefish
      • Nudibranch
        • Distribution
        • Habitat
        • Description
        • Reproduction
        • Feeding
        • Colors and camouflage
        • Taxonomy
      • Nurse shark
    • O
      • Oceanic whitetip shark
        • Taxonomy
        • Distribution and habitat
        • Anatomy and appearance
        • Diet
        • Behavior
        • Reproduction
        • Relationship to humans
        • Conservation status
      • Ocellated dwarf lionfish
      • Octopus
        • Intelligence
        • Defense
        • Reproduction
        • Sensation
        • Locomotion
        • Size
        • Terminology
        • Relationship to humans
        • In mythology
        • As food
        • As pets
      • Orangespine unicornfish
      • Oriental sweetlips
      • Ornate Butterflyfish
    • P
      • Painted spiny lobster
      • Palette surgeonfish
      • Paper nautilus
      • Parrotfish
      • Partidge tun
      • Patterned eagle ray
      • Peacock flounder
      • Peacock mantis shrimp
      • Pearlfish
      • Pegasidae
      • Pelagic sea snake
      • Pencilled surgeonfish
      • Picasso triggerfish
      • Pickhandle barracuda
      • Pig-face butterflyfish
      • Pink whipray
      • Pipefish.
      • Porcelain crab
      • Porcupine ray
      • Potato grouper
      • Powder-blue surgeonfish
      • Pseudanthias cooperi
      • Pufferfish
      • Purple fire goby
      • Pygmy seahorse.
      • Pyramid boxfish
    • Q
      • Queenfish
    • R
      • Rabbitfish
        • Species
      • Raccoon butterflyfish
      • Rainbow Runner
        • Distribution and habitat
        • Biology
        • Diet
        • Reproduction
        • Reproduction
        • Importance to humans
        • Commercial fishery
      • Red fire goby
      • Red-breasted splendour wrasse
      • Red-tailed butterflyfish
      • Redtoothed triggerfish
      • Regal Angelfish
      • Ribbon eel
      • Ribbon eel.
      • Rip butterflyfish
      • Rockmover wrasse
    • S
      • Saddle grouper
      • Saddleback butterflyfish
      • Saddleback hogfish
      • Sailfin tang
      • Sailfish
      • Sandtiger Shark
      • Scale-eating sabretooth blenny
      • Scalloped hammerhead
      • Scarlet cleaner shrimp
      • Schooling Bannerfish
      • Scissortail dart goby
      • Scissortail sergeant
      • Scorpionfish
      • Scribbled filefish
      • Scythe triggerfish
      • Sea Anemones
      • Sea cucumber
      • Sea snake
        • Distribution and habitat
        • Behavior
        • Feeding
        • Reproduction
        • Venom
        • Taxonomy
        • Captivity
        • Conservation status
      • Sea Whip
      • Seahorse.
        • Costs.
        • Adaptations.
        • Pets.
        • Use in Chinese medicine.
      • Seamoths
      • Sergeant Majorfish
      • Shaded batfish
      • Shrimpfish.
      • Silky shark
      • Silver batfish
      • Silvertip shark
      • Sixstriped soapfish
      • Skunk anemonefish
      • Smooth grouper
      • Snapper
      • Soft Coral
      • Spanish dancer
      • Spiral black coral
      • Splendid Garden Eel
      • Sponge
        • Distinguishing features
        • Cell types
        • Glass sponges' syncytia
        • Water flow and body structures
        • Skeleton
        • Movement
        • Respiration, feeding and excretion
        • Carnivorous sponges
        • Endosymbionts
        • Asexual
        • Sexual
        • Life cycle
        • Coordination of activities
        • Habitats
        • As primary producers
        • Defenses
        • Predation
        • Bioerosion
        • Diseases
        • Collaboration with other organisms
        • Fossil record
        • Family tree
        • Taxonomy
        • By dolphins
        • Skeleton
        • Antibiotic compounds
      • Spotfin frogfish
      • Spotfin Lionfish
      • Spotted Butterflyfish
      • Spotted Dolphin
      • Spotted Eagle Ray
      • Spotted Hawkfish
      • Spotted shovelnose ray
      • Spotted unicornfish
      • Squamose giant clam
      • Squat lobster
      • Squat shrimp
      • Squid
      • Squirrelfish.
      • Staghorn Coral
      • Staghorn Coral
      • Starry dragonet
      • Starry pufferfish
      • Stingray
      • Stonefish
      • Striped bristletooth
      • Striped Dolphin
      • Striped Eel Catfish.
      • Striped remora
      • Surgeonfish
      • sweetlips
      • Synanceia verrucosa
        • Range
        • Description
        • Habitat
        • Points of note
        • Venom
    • T
      • Taenianotus triacanthus
      • Teardrop Butterflyfish
      • Thorny oyster
      • Threadfin butterflyfish
      • Thresher shark
      • Tiger cowrie
      • Titan triggerfish
      • Tomato Anemonefish
      • Tomato Clownfish
      • Triggerfish
      • Trumpetfish
      • Tuna
        • Association with whaling
        • Association with dolphins
        • Management and conservation
        • Canned tuna
        • Nutrition and health
        • Mercury levels
      • Twin magnificent slug
      • Two-colour blenny
      • Two-lined monocle bream
    • U
      • Undulated moray
      • Unicornfish
    • V
      • Valentin's toby
      • variable neon slug
      • Variegated lizardfish
      • Velvet surgeonfish
    • W
      • Wahoo
      • Weedy scorpionfish
      • Western Clownfish
      • Whale shark
        • Diet
        • Behavior towards divers
        • Reproduction
        • Conservation status
        • Whale sharks in captivity
      • White-banded cleaner shrimp
      • White-mouth moray
      • Whitespotted surgeonfish
      • Whitetail dwarf-angelfish
      • Whitetip reef shark
      • Wrasse
    • X
    • Y
      • Yellow-edged moray
      • Yellowback fusilier
      • Yellowfin surgeonfish
      • Yellowhead butterflyfish
      • Yellowsaddle goatfish
      • Yellowtail barracuda
      • Yellowtail jack
      • Yellowtail triggerfish
    • Z
      • Zebra dwarf lionfish
      • Zebra moray
      • Zebra shark
        • Description
        • Biology and ecology
        • Sociality
        • Life history
        • Human interactions
  • Our Qualified Divers
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  • Diving Information
    • A
      • Accessories
      • Air
      • Air Cylinders
      • Algorithm
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    • B
      • Breathing gas
        • Common diving breathing gases
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        • Types
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        • Orientation in the water
        • History
    • C
      • Carbon dioxide
        • Chemical and physical properties
        • History of human understanding
        • Uses
        • In the Earth's atmosphere
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        • Role in photosynthesis
        • Toxicity
        • Human physiology
      • Cave diving
        • Hazards
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      • Cavern diving
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        • U.S. History
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      • Commercial Diving
        • Diving suit
        • Breathing apparatus
        • Scuba
        • Surface supplied
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        • HAZMAT diving
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      • Jacques-Yves Cousteau
        • Life
        • Marine exploration
        • Biology
        • Defense of the environment
        • Legacy
    • D
      • Decompression sickness
        • Introduction
        • History
        • Predisposing factors
        • Signs and symptoms
        • Treatment
        • Common pressure reductions that cause DCS
        • Leaving a high pressure environment
        • Ascent through water during a dive
        • Avoidance
        • Helium
        • Ascent to altitude in the atmosphere
        • Medical treatment
        • Effects of breathing pure oxygen
        • Scuba diving before flying
        • Diving at altitude
      • Decompression stop
        • Mechanism
        • Deep stops
        • Missed stops
        • Equipment
      • Deep diving
      • Deep water blackout
        • Deep water blackout versus shallow water blackout
        • Deep water blackout and nitrogen narcosis
        • Possible mechanisms for deep water blackout
      • Dive computer
        • History
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        • Audible information
        • Operation
        • Algorithms
        • Special purpose dive computers
        • Precautions
      • Diver Propulsion Vehicle
        • Types of DPVs
        • Wet-subs
      • Diving cylinder
        • Parts of a cylinder
        • Types of pillar valve
        • Purposes of diving cylinders
        • Breathing capacity
        • Breathing Time
        • Reserves
        • Configuring cylinders
        • Filling tanks
        • Manufacture and testing
        • Gas cylinder colour coding
        • Cylinder labeling
      • Diving mask
        • Construction
        • Use
        • Types of diving mask
      • Diving regulator
        • Fastening the regulator to the cylinder or cylinder block
        • Pressure gauge
        • Standard type
        • Button gauges
        • Air integrated computers
        • Mechanical reserve valves
        • First stage
        • Piston type
        • Diaphragm type
        • Risk of the regulator becoming blocked with ice
        • Types of last stage
        • Demand valve
        • Pressure relief valve
        • Types of regulator
        • Twin-hose
        • Twin-hose, home-made
        • Unusual designs
        • First stage valve
        • Second stage valve
      • Diving suit
        • Ambient pressure suits
        • Wetsuits
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        • Semi-dry suits
        • Dive skins
        • Hot water suits
        • Diving suit combinations
      • Diving support vessel
        • Uncle John
        • Modern Diving Support Vessels
      • Drowning
        • Drowning risk situations
        • The pathophysiology of drowning
        • Fresh water vs. Salt Water drowning
        • The reaction to oxygen deprivation
        • The reaction to water inhalation
        • Unconsciousness
        • Cardiac arrest and death
        • Rescue and treatment
        • Prevention
        • As a method of execution
      • Dry suit
        • Parts of a dry suit
        • Waterproof entry
        • Optional
        • Gloves, mitts, and 3-finger mitts
        • Hoods
        • Boots
        • Attachment rings
        • Valves
        • The P-Valve
        • Uses of dry suits
        • Water sports
        • Working
        • Survival
        • Underwater
        • Drysuit donning and diving hazards
        • Inversion hazards
    • E
      • Enriched Air Nitrox
        • Purpose
        • Naming
        • Richness of mix
        • Cylinder markings
        • Dangers
        • Precautionary procedures at the fill station
        • Fire and or toxic cylinder contamination from oxygen reactions
        • History
    • F
      • Fish
        • Definition
        • Anatomy
        • Circulatory system
        • Excretory system
        • Sensory and nervous system
        • Muscular system
        • Organs
        • Reproductive method
        • Immune system
        • Evolution
        • Homeothermy
        • Diseases
        • Conservation
        • Overfishing
        • Habitat destruction
        • Culture
        • Terminology
        • Shoal or school
      • Free-diving
        • Overview
        • Competitive freediving
        • Pool disciplines
        • Depth disciplines
        • Recreational
        • Physiology of freediving
        • Training
        • History
        • Official world records as of April, 2008 (AIDA)
        • Freediving in fiction
      • Frogman
        • Types of armed-forces divers
        • Frogman training
        • Breathing sets
        • Features needed
        • Not open-circuit scuba
        • The Russian IDA71
        • Masks
        • Fins
        • Diving suits
      • Full face diving mask
        • Straps firmly fasten it to the head
        • Much less risk of water leaking in past a mouthpiece
        • Without a mouthpiece inside the full-face mask
        • With a small mouth-and-nose
    • G
      • Émile Gagnan
    • H
      • Helium
        • Gas and plasma phases
        • Solid and liquid phases
        • Helium I state
        • Helium II state
        • Applications
        • History
        • Extraction and uses
        • Occurrence and production
        • Modern extraction
        • Isotopes
        • Biological effects
        • Compounds
      • Hypothermia
        • Symptoms
        • Treatments
        • Prevention
        • Benefits
    • I
      • Ice diving
        • Exposure Suits
    • J
    • K
    • L
      • Liability insurance
        • Overview of liability insurance
        • Public liability
        • Product
        • Employers
        • Evidentiary rules regarding liability insurance
      • Lung
        • Respiratory function
        • Mammalian lungs
        • Anatomy
        • Avian lungs
        • Reptilian lungs
        • Amphibian lungs
        • Invertebrate lungs
        • Origins
    • M
      • Marine mammal
        • Groups
        • Adaptations
        • Research
      • Military diving
        • Types of armed-forces divers
        • Frogman training
        • Breathing sets
        • Features needed
        • Not open-circuit scuba
        • The Russian IDA71
        • Masks
        • Fins
        • Diving suits
    • N
      • Naval diving
      • Neoprene
        • History
        • Applications
        • Precautions
      • Nitrogen
        • Properties
        • Occurrence
        • Isotopes
        • Electromagnetic spectrum
        • History
        • Biological role
        • Reactions
        • Simple compounds
        • Nitrogen compounds of notable economic importance
        • Dangers
      • Nitrogen narcosis
        • Effects
        • Risk factors
        • Mechanism and rate of onset, with question of adaptation
        • Mitigation
        • Avoidance and cure
        • Other gases
    • O
      • Oxygen
        • Characteristics
        • Allotropes
        • Physical properties
        • Isotopes and stellar origin
        • Occurrence
        • Biological role
        • Build-up in the atmosphere
        • Early experiments
        • Phlogiston theory
        • Discovery
        • Lavoisier's contribution
        • Later history
        • Industrial production
        • Applications
        • Life support and recreational use
        • Industrial
        • Scientific
        • Oxides and other inorganic compounds
        • Organic compounds and biomolecules
        • Toxicity
        • Combustion and other hazards
      • Oxygen toxicity
        • Central nervous system (CNS) oxygen toxicity
        • Clinical relevance of CNS oxygen toxicity
        • Pulmonary oxygen toxicity
        • Clinical relevance of pulmonary oxygen toxicity
        • Diving relevance of pulmonary oxygen toxicity
    • P
      • Police diving
      • Pressure
        • Units
        • Examples
        • Scalar nature
        • Types
      • Professional diving
        • Diving suit
        • Breathing apparatus
        • Scuba
        • Surface supplied
        • Commercial diving
        • Inland / onshore diving
        • HAZMAT diving
        • Nuclear diving
        • Scientific diving
        • Media diving
        • Military and naval diving
        • Police diving
        • Dive instruction
        • Training
    • Q
    • R
      • Rebreather
        • Basics
        • History of rebreathers
        • Sport diving rebreather technology innovations
        • Advantages of rebreather diving
        • The loop
        • Carbon dioxide scrubber
        • Scrubber failure
        • Failure prevention
        • Effectiveness
        • Controlling the mix
        • Counterlung
        • Bailout
        • Casing
        • Oxygen rebreather
        • Semi-closed circuit rebreather
        • Fully closed circuit rebreather
        • Rebreathers whose absorbent releases oxygen
        • Rebreathers which store liquid oxygen
        • Cryogenic rebreather
        • Other designs
        • Risks and precautions with rebreather diving
        • Some makes of rebreather
      • Recompression chamber
      • Recreational diving
        • Diving today
        • Training levels
        • Bodies of water for diving
        • Dive site features
      • Refractive index
        • Speed of light
        • Dispersion and absorption
        • Anisotropy
        • Nonlinearity
        • Inhomogeneity
        • Relation to density
        • Applications
      • Rescue and recovery diving
        • Reasons for needing rescue
        • Rescuers and training
        • Rescue activities
        • Locating the casualty underwater
        • Free the trapped casualty
        • Provide emergency gas
        • Bring the casualty to the surface
        • Make the casualty buoyant on the surface
        • Carrying out artificial ventilation in the water
        • Attracting help
        • Towing the casualty
        • Removing the casualty from the water
        • Resuscitate
        • Precautions during the rescue
    • S
      • Saturation diving
      • Scientific diving
      • Scuba Diving Information
        • Etymology
        • Types of diving
        • Physiological issues
        • Open-circuit
        • Rebreather
        • Gas mixtures
        • Injuries due to changes in air pressure
        • Effects of breathing high pressure gas
        • Nitrogen narcosis
        • Oxygen toxicity
        • Refraction and underwater vision
        • Controlling buoyancy underwater
        • Avoiding losing body heat
        • Avoiding skin cuts and grazes
        • Being mobile underwater
        • Scuba dive training and certification agencies
      • Scuba set
        • Types of scuba sets
        • Open circuit scuba sets
        • Constant flow
        • With a demand regulator
        • Twin-hose open-circuit scuba
        • Single-hose open-circuit scuba
        • Cryogenic open-circuit scuba
        • Rebreathers
        • Duration of a dive
        • Air cylinders
        • Underwater alternatives to scuba
        • Breathing sets used out of water
        • History
        • Accessories
        • Notable early manufacturers
      • Shallow water blackout
        • The role of hyperventilation
        • Deep water blackout
      • Snorkeling
        • Getting started
        • Swimmer's snorkel
        • Snorkeling locations
        • Variants and related activities
      • Sponge
        • Anatomy and morphology
        • Physiology
        • Taxonomy
        • Geological history
        • Ecology
        • Use
      • Swimfin
        • History
        • Specialized types of swim fins
    • T
      • Technical diving
        • Inability to ascend directly
        • Decompression stops
        • Extremely Limited Visibility
        • Gas mixes
        • Equipment
        • Training
      • Thermal conductivity
        • Examples
        • Measurement
        • Difference between US and European notation
        • Related terms
        • Thermal Resistance
        • Second definition (buildings)
        • Origins
      • Thermal insulation
        • Thermal radiation and radiant barriers
        • Thermal conduction and conductive barriers
        • Convective transfer and convective barriers
        • Factors that compromise insulation
        • Calculating requirements
        • Applications
        • Industry
      • Timeline of diving technology
        • 19th century
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      • Trimix
    • U
      • Underwater
      • Underwater
      • Underwater archaeology
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        • Position Fixing
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        • Recording
        • Excavation
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        • Interpretation and presentation of underwater archaeology
      • Underwater diving
        • History
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        • Surface supplied diving
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        • Other forms of underwater diving
      • Underwater vision
        • Masks and Goggles
        • Trivia
    • V
    • W
      • Weight
        • Weight and mass
        • SI units
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        • Sensation of weight
        • Measuring weight
        • Relative weights on the Earth, other planets and the Moon
      • Wetsuit
        • Suit creator history
        • Suit design history
        • Suit assembly history
        • Seam taping
        • The blindstitch revolution
        • Further advances in suit design
        • The return of single-backed neoprene
        • Types
        • Controversy
      • Wreck diving
        • Reasons for diving wrecks
        • Wreck diver training and safety
        • Protection of wrecks
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