289 INDEX INDEX Thinsulate ..........................................................................27 Thoracic squeeze ....................................................124, 148 Thrust, trim and .............................................................101 Tidal current ...............................................................41, 42 Tidal waves ........................................................................36 Tide ..............................................................................40-42 Timber rattlesnake ............................................................60 Time ...................................................................................71 Time to fly indicator, dive computers and ................20-21 Timekeeper in hyperbaric chamber ..............................167 Timers, underwater ..........................................................19 Tissue-based dive computers .....................................21-22 Tooth squeeze, dental barotrauma and ........................128 Toxins hyperbaric chambers and .........................................169 oral ...............................................................................52 parenteral .....................................................................52 Toynbee maneuver ..........................................................126 Training, deep diving and ..............................................235 Trapdoor effect ........................................................125, 148 Travel dive light, night diving and ................................212 Traveling rip current ........................................................43 Trim .........................................................................101, 102 Trimix diving ..........................................................250-252 True corals ........................................................................54 True north, compass navigation and ............................199 Tsunamis ...........................................................................36 Turtles ................................................................................60 Two-hose regulators ...................................................10, 11 Typhoid, inoculations for ...............................................136 U Unbalanced piston first-stage valve ................................11 Unbalanced valve ........................................................13, 24 Undertow ...........................................................................37 Underwater photography .................................................98 Underwater pipelines ........................................................48 Underwater search .............................................. see Search Underwater timers ............................................................19 Underwear, dry suit ....................................................27, 28 Upstream second-stage valve .....................................12, 13 Upstream valves ................................................................11 Upwelling ....................................................................45, 46 U.S. theory, decompression and .....................................153 V Valsalva maneuver for ear clearing .......................111, 125 Valve assemblies ..................................................................8 Valve seat ...........................................................................11 Valve snorkel .......................................................................8 Valves balanced .......................................................................11 balanced piston first-stage .........................................11 deep diving and .........................................232, 236-238 diaphragm first-stage .................................................12 DIN ...............................................................................10 downstream .................................................................11 downstream second-stage ..........................................12 first-stage .....................................................................11 J ...................................................................................8, 9 K ......................................................................................8 second-stage ................................................................12 slingshot .....................................................................238 unbalanced ............................................................13, 24 unbalanced piston first-stage .....................................11 upstream ......................................................................11 upstream second-stage ...............................................12 Y ....................................................................................10 VCI ........................................see Visual Cylinder Inspection Venomous fish ...................................................................56 Ventilation, respiration and ...........................................112 “Venting the chamber,” hyperbaric chambers and .........167 Vertigo alternobaric .......................................................135, 145 disorientation and .....................................................134 Vestibular system, disorientation and vertigo and .........................134, 135 Visibility, limited, diving in ....................................206-210 Visual Cylinder Inspection ..................................................7 Volume ...................................................................69, 71, 73
20047TC
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