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Kelp Surface Dive
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A vertical, feet-first, method of descending into water of unknown depth or when obstructions or heavy plant (such as kelp) growth exists; performed by spreading arms and legs, then simultaneously bringing legs together while giving a strong downward stroke with arms thus propelling upper body out of water; body weight will then drive the diver downward; some also find this dive descent easier to equalize ears because there is less blood pressure in head than with pike (head first) dive.
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Kilo/kg
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Kilogram. Metric measure of weight. 1 kg = 2.21 pounds.
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Knot
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The velocity unit of 1 nautical mile (6080.20 ft.) per hour; equivalent to 1.689 ft. per second: to convert ft. per sec. into knots, multiply by 0.592.
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K-Valve
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A simple on and off valve.
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