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How to know water pressure? 


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Water pressure can be determined using various methods. One method involves using X-ray photographs and numerical modeling to estimate the detonation pressure of high explosives . Another method involves calculating the components of the microscopic pressure tensor as a function of radial distance from the center of a water droplet . Additionally, pressure differences in low velocity water flows can be accurately measured using a standard air-type manometer in conjunction with twin reservoirs . A different approach involves using bioluminescence emitted by plankton to measure impact water pressure . Finally, ancient cultures have also used water pressure systems for various purposes, such as controlling the flow of water within an urban area .

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The paper does not provide information on how to measure water pressure. The paper discusses the discovery of a water pressure system used by the Classic Maya civilization.
The paper describes a bioluminescence-based imaging technique using the dinoflagellate Pyrocystis lunula to measure water pressure.
The paper provides a method to calculate the components of the microscopic pressure tensor for water droplets using a coarse-graining approach.
The paper discusses measuring water pressure in low velocity water flows using a standard air-type manometer in conjunction with twin reservoirs.
The paper proposes a semi-empirical method of determining water pressure by comparing calculated and recorded profiles of an oblique shock wave propagating in water.

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