@ 33ft FSW depth 14.7 psi is exerted
.445 psi per ft of depth (.5 psi)
Eardrum trauma @ 8 ft depth or 4 psi
"Gauge pressure" is zero @ sea level
"Absolute Pressure" is gauge + 14.7 psi
"Partial pressure" is pressure exerted by separate gas in air mixture
Equalizing Air Spaces - ANSWER Lungs: breathe normally
Middle Ear: valsalva maneuver
Sinuses: normal breathing, clear sinuses
Stomach/Intestines: diet
What does Stay inside the Box mean? - ANSWER Emphasizing importance on
monitoring depth, safety, conditions and timing of the dive
Boyle's Law - ANSWER A principle that describes the relationship between the
pressure and volume of a gas at constant temperature
Charles' Law - ANSWER the law that states that for a fixed amount of gas at a
constant pressure, the volume of the gas increases as the temperature of the gas
increases and the volume of the gas decreases as the temperature of the gas
decreases
Henry's Law - ANSWER states that at a given temperature, the solubility of a gas in
a liquid is directly proportional to the pressure of the gas above the liquid
Musts while rinsing a regulator - ANSWER Make sure the dust cap is on
Don't press down the button on the regulator
Barotrauma (Over pressurization injury) - ANSWER Ear drum injury: painful but no
tearing. If the ear ruptures you get vertigo
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