pressure and submersibles

when inhaling, the volume in your lungs increases, creating a low pressure area in your lungs. This allows outside air to rush in and equalize the pressure in your lungs.

Pressure is the amount of force being exerted across the area of an object.

Pressure = force/area or force divided by area Force: Newton units Area: square metres Pressure: Pascals (Pa) or kilopascals (kPa)

The Pressure decreases.

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Fluid pressure relies on whether the gas or liquid is enclosed.

Open condition fluids are fluids not contained within certain enclosures. i.e. - pools - oceans - the atmosphere

Fluid State Principles, which help explain phenomena like buoyancy and altitude pressure.

It becomes a closed condition fluid.

pipes and other liquid or gas filled systems.

Pascal’s Law of Fluid Pressure, which states that the pressure applied to a liquid will be evenly distributed throughout a liquid. i.e. squeezing a balloon the pressure exerted on the outside of the balloon forces the gasses inside to exert greater pressure on the surfaces’ inside, causing the balloon to swell or bulge.

The Galileo Thermometer tells the temperature of a room based on the density of liquids. The orbs rise or fall based on the temperature of the surrounding liquids.

ρ = mass/volume or mass over volume ρ is a greek letter called rho, often used to represent density. the density of an object is identified as the amount of mass per unit of volume. i.e. grams per mL

homogenous materials have a uniform consistency through its properties, even in density. i.e. Distilled water It has a density of 1 g/mL if the temp is around 4 degrees.

It will Decrease since it will create greater Volume.

It can increase the Density because it decreases Volume.

Heterogeneous Materials’ densities vary throughout. There are ways to calculate the densities of heterogeneous materials, people often use the average instead. Example: Ice It usually has a density around 0.9 g/mL at 0 degrees Celsius. But trapped air would decrease the density further in certain spots where the air is trapped.

density of objects normally changes slightly with atmospheric changes to air pressure when gaining or losing altitude.

Greater altitude causes the density of air to decrease which lowers its pressure. This is because of the lower amount of air pushing from above, and the weaker gravitational pull from Earth.

Lower altitudes normally cause the density of objects to decrease due to lower surrounding pressure. As such, the melting and freezing points will lower due to more space for the atoms to expand. Boiling points will also decrease with the lower pressure. i.e. water Water boils at 95 degrees Celsius at 5000 feet above sea level. At 10 000 feet above sea level, water boils at 90 degrees Celsius.

Captain Nemo was the captain for the Nautilus from the fictional novel 20 000 Leagues Under the Sea.

Mobilis in mobili, or moving in something moving.

Submarines are self operating vehicles that don’t need outside support and include Air and Power.

Robert Fulton, in the 1700’s. His design inspired the creation of the Nautilus in 1800 CE.