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  2. Submarine depth ratings - Wikipedia

    en.wikipedia.org/wiki/Submarine_depth_ratings

    The outside water pressure increases with depth and so the stresses on the hull also increase with depth. Each 10 metres (33 ft) of depth puts another atmosphere (1 bar, 14.7 psi, 101 kPa) of pressure on the hull, so at 300 metres (1,000 ft), the hull is withstanding thirty standard atmospheres (30 bar; 440 psi; 3,000 kPa) of water pressure.

  3. Centimetre or millimetre of water - Wikipedia

    en.wikipedia.org/wiki/Centimetre_or_millimetre...

    A centimetre of water [1] is a unit of pressure. It may be defined as the pressure exerted by a column of water of 1 cm in height at 4 °C (temperature of maximum density) at the standard acceleration of gravity, so that 1 cmH 2 O (4°C) = 999.9720 kg/m 3 × 9.80665 m/s 2 × 1 cm = 98.063754138 Pa ≈ 98.0638 Pa, but conventionally a nominal maximum water density of 1000 kg/m 3 is used, giving ...

  4. Orders of magnitude (pressure) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(pressure)

    Pressure of an average human bite [citation needed] 2.8–8.3 MPa 400–1,200 psi Pressure of carbon dioxide propellant in a paintball gun [64] 5 MPa 700 psi Water pressure of the output of a coin-operated car wash spray nozzle [58] 5 MPa 700 psi Military submarine max. rated pressure (est.) of Seawolf-class nuclear submarine, at depth of 500 m ...

  5. Metre sea water - Wikipedia

    en.wikipedia.org/wiki/Metre_sea_water

    The pressure of seawater at a depth of 33 feet equals one atmosphere. The absolute pressure at 33 feet depth in sea water is the sum of atmospheric and hydrostatic pressure for that depth, and is 66 fsw, or two atmospheres absolute. For every additional 33 feet of depth, another atmosphere of pressure accumulates. [6]

  6. Deep diving - Wikipedia

    en.wikipedia.org/wiki/Deep_diving

    60 m (200 ft) Depth limit for a group of 2 to 3 French Level 3 recreational divers, breathing air. [17] 66 m (217 ft) Depth at which breathing compressed air exposes the diver to an oxygen partial pressure of 1.6 bar (23 psi). Greater depth is considered to expose the diver to an unacceptable risk of oxygen toxicity. [nb 2] 100 m (330 ft)

  7. Are You 60+? These Are Your Most Common Health Risks - AOL

    www.aol.com/finance/most-common-health-issues...

    When it comes to high blood pressure, the good news, according to the CDC, is that more and more adults over 60 are aware of the risks and are seeking treatment — but the risks themselves haven ...

  8. Water table - Wikipedia

    en.wikipedia.org/wiki/Water_table

    It can also be simply explained as the depth below which the ground is saturated. The water table is the surface where the water pressure head is equal to the atmospheric pressure (where gauge pressure = 0). It may be visualized as the "surface" of the subsurface materials that are saturated with groundwater in a given vicinity.

  9. 'I'm 65 and In the Best Shape of My Lifeā€”This Is the Exact ...

    www.aol.com/im-65-best-shape-life-112500521.html

    She also has climbed to the top of the Rock of Guatape in Colombia, been named one of the Fittest 50 Over 50 in the nation and has won medals through the National Senior Games.