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  2. Water jet cutter - Wikipedia

    en.wikipedia.org/wiki/Water_jet_cutter

    Typical water jet cutting machines have a working envelope as small as a few square feet, or up to hundreds of square feet. Ultra-high-pressure water pumps are available from as low as 40,000 psi (280 MPa) up to 100,000 psi (690 MPa). [44] There has also been a growth in small, desktop-sized machines that operate at pressures under 10kpsi.

  3. Hydraulic mining - Wikipedia

    en.wikipedia.org/wiki/Hydraulic_mining

    Gold miners excavate an eroded bluff with jets of water at a placer mine in Dutch Flat, California sometime between 1857 and 1870.. The modern form of hydraulic mining, using jets of water directed under very high pressure through hoses and nozzles at gold-bearing upland paleogravels, was first used by Edward Matteson near Nevada City, California in 1853 during the California Gold Rush. [3]

  4. Orders of magnitude (pressure) - Wikipedia

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

    Pressure used in boilers of steam locomotives [citation needed] 1.1 MPa 162 psi 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

  5. Remotely operated underwater vehicle - Wikipedia

    en.wikipedia.org/wiki/Remotely_operated...

    ROV at work in an underwater oil and gas field. The ROV is using a torque wrench to adjust a valve on a subsea structure.. A remotely operated underwater vehicle (ROUV) [citation needed] or remotely operated vehicle (ROV) is a free-swimming submersible craft used to perform underwater observation, inspection and physical tasks such as valve operations, hydraulic functions and other general ...

  6. Lifting bag - Wikipedia

    en.wikipedia.org/wiki/Lifting_bag

    For example, a 100-litre (3.5 cu ft) bag can lift a 100-kilogram (220 lb) underwater object. [ 1 ] A partially filled bag will accelerate as it ascends because the air in the bag expands as the pressure reduces on the ascent, following Boyles law , increasing the bag's buoyancy , whereas a full bag will overflow or blow off excess volume and ...

  7. Save $100 on this underwater scooter and take epic photos as ...

    www.aol.com/save-100-underwater-scooter-epic...

    TL;DR: The NAVBOW Underwater Scooter is only $899.99 as of Oct. 23. That's $100 off for a limited time.Diving enthusiasts know there's nothing like taking that dip underwater to see what aquatic ...