284 NAUI Master Scuba Diver INDEX K Keels inflatable, inflatable boats and .................................258 wooden, inflatable boats and ....................................258 Kelp ..............................................................47-50, 197, 214 Kick ................................................................. 101, 120, 196 cave diving, diving in limited visibility and.............207 kick cycles in......................................................196, 221 Kinetic energy ................................................. 68, 71, 86, 96 Knives .......................................................................208, 231 K-valve .....................................................................8, 9, 238 L Laboratory bioassays .........................................................62 Laboratory of Hyperbaric Physiology ............................156 Lakes, annual cycle of ......................................................46 Length ..........................................................................71, 73 Lifting ................................................................80, 219, 225 Light ...................................................................................97 dive ............................................................ 209, 212, 213 energy and ...................................................................97 signal ..........................................................................267 surface ................................................................210, 213 Limb bends ..............................................................118, 146 Lines ................................196, 208, 219, 220, 223, 252, 270 tether, diving in limited visibility and ......................208 LORAN navigation unit, boat diving and ......................260 M Magnetic north, compass navigation and .....................199 Mammals .....................................................................50, 60 Manifolds .......................................................................8, 10 Marijuana ........................................................................142 Marine animals, hazardous .......................................51-59 Mass ................................................................ 68, 71, 74, 75 Measurement systems .......................................................71 Mediastinal emphysema .........................................123, 124 Menstruation ...................................................................138 Molecules ...........................................................................69 N NAUI Dive Tables ..............................................94, 158, 159 Navigation ...............................................................221, 223 compass .................................................... 199, 236, 244 equipment for ....................................................218, 254 means of .............................................................194, 197 natural ....................................................... 197, 198, 200 Neap tides ..........................................................................40 Near drowning ................................................................116 Neoprene ...........................................................................25 Nickel-cadmium (ni-cad) battery dive lights, night diving and .....................................212 Night diving .............................................................206-215 equipment for ....................................................211-215 preparation for ..........................................................211 Nitrogen .................................................................69, 70, 84 Nitrogen absorption and elimination decompression sickness and .....................................118 Nitrox ........................................................ 70, 162, 163, 250 NOAA Nitrox I &II ...........................................................250 No-Decompression Limit (NDL) ...........................154, 155 Nutrition, diving and ......................................................142 O Octopus, blue-ringed ........................................................56 Octopus rig ......................................................................232 Offgassing ..........................................................96, 153, 162 Omitted decompression ................................. 152, 160, 242 Open skiffs, boat diving and ...................................259, 260 Open-circuit demand scuba ..............................................4 Operator in hyperbaric chamber ...................................167 Oral toxins ...................................................................51-52 Orders, divisions of plants and animals and ..................49 Orientation, diving in limited visibility and ..................209 O-ring, dive lights and ...................................................213 Out-of-air diver ............................. see Emergency ascents Overexertion ....................................................................114 Oxygen .........................................................................68-70 Oxygen administration, diver rescue and .....................188 Oxygen toxicity Nitrox and ..................................................................251
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