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2. Metre sea water - Wikipedia

   en.wikipedia.org/wiki/Metre_sea_water

   The metre (or meter) sea water (msw) is a metric unit of pressure used in underwater diving.It is defined as one tenth of a bar. [1] [2]The unit used in the US is the foot sea water (fsw), based on standard gravity and a sea-water density of 64 lb/ft 3.

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. Seawater - Wikipedia

   en.wikipedia.org/wiki/Seawater

   Seawater, or sea water, is water from a sea or ocean. On average, seawater in the world's oceans has a salinity of about 3.5% (35 g/L, 35 ppt, 600 mM). This means that every kilogram (roughly one liter by volume) of seawater has approximately 35 grams (1.2 oz) of dissolved salts (predominantly sodium ( Na +

5. Water column - Wikipedia

   en.wikipedia.org/wiki/Water_column

   Deep sea water column. The (oceanic) water column is a concept used in oceanography to describe the physical (temperature, salinity, light penetration) and chemical (pH, dissolved oxygen, nutrient salts) characteristics of seawater at different depths for a defined geographical point.

6. Bar (unit) - Wikipedia

   en.wikipedia.org/wiki/Bar_(unit)

   The bar is a metric unit of pressure defined as 100,000 Pa (100 kPa), though not part of the International System of Units (SI). A pressure of 1 bar is slightly less than the current average atmospheric pressure on Earth at sea level (approximately 1.013 bar).

7. What is a 'catastrophic implosion'? How pressure but no pain ...

   www.aol.com/catastrophic-implosion-pressure-no...

   The deep-sea water pressure that appears to have crushed the 22-foot craft would have been roughly equivalent in weight to the 10,000-ton, wrought-iron Eiffel Tower, experts told NBC News on Friday.

8. Human physiology of underwater diving - Wikipedia

   en.wikipedia.org/wiki/Human_physiology_of...

   A descent of 10 metres (33 feet) in water increases the ambient pressure by an amount approximately equal to the pressure of the atmosphere at sea level. So, a descent from the surface to 10 metres (33 feet) underwater results in a doubling of the pressure on the diver. This pressure change will reduce the volume of a gas filled space by half.

9. Titan submersible hearing begins as questions linger over ...

   www.aol.com/news/titan-submersible-hearing-set...

   The passengers on board were deep sea explorer Paul-Henri Nargeolet, 77, who was experienced in visiting the Titanic wreck site; British tycoon Hamish Harding, 58; and Pakistani businessman ...