Archive for the ‘physics’ Tag

Endless Blue – Week 88.5 – Jetsam: Generating Heat   Leave a comment

Physics

Generating heat

It is through observation, a key tenet of the scientific method, that piscean civilization has progressed.  It was the observation of animals like the mantis shrimp that led piscean thinkers to create heat.

Heat and energy can be produced through cavitation.  Cavitation is for formation of vapor cavities in liquid, either through chemical reaction, temperature differential, or intense movement.  The liquid is subjected to a rapid change in pressure, and pockets of vapor are formed as the mechanical movement is converted into heat.  The pocket then collapses, forming a shock wave. Repeated over and over again in succession, sufficient heat and gas can be created.

Should this generation of heat and sound can be harnessed properly, it would be a boon to alchemist whose concoctions hinge on speed for their purity.

Endless Blue – Week 78 – Whispered Secrets in the Deep Sound Channel   2 comments

Physics

Whispered Secrets in the Deep Sound Channel

It cannot be emphasized enough how much water engulfs the world of Elqua.  At only 5% of its surface being land, it is a world that is nearly submerged beneath vast, deep, and consequently heavy oceans.  The pull of gravity on the great expanses of water overhead makes the layers beneath become more compact.  As the accumulating weight above pushes downward, this increasing pressure makes the water below compress more and more, which as a result creates such problems for oceanic life as crushing pressure and maintaining buoyancy.  However, there exists an interesting positive effect of this highly compacted water molecules: the Deep Sound Channel.

The deep sound channel is a phenomenon where the speed of sound is heightened to a maximum due to depth pressure, water temperature, and salinity.  Water is a superior medium for conducting sound, since there more molecules closer together to propagate the sound wave.  Distilled water is approximately 4.3 times a better conductor of sound than ambient air.  Adjusting for saltwater, colder temperatures, and pressure, and that rises to over five times as conductive.  As these factors increase the deeper you go, the water takes on superior sound refracting qualities that rival sound propagation above the waves,  Sound can be carried more easily and farther at the expense of less energy.  This is the manner in which whalesong travels so far and remains viable.  And here, both literally and figuratively, is where the magic happens.

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Endless Blue – Week 61 – Weight in a Buoyant World   Leave a comment

Physics

Weight in a Buoyant World

Weight as we, beings that walk on legs, understand is meaningless underwater.  Shackled as we are to the surface of solid land, we experience the pull of gravity at a limited range along the bottom of the atmosphere.  To rise above this nadir takes vast amounts of effort, energy, and engineering from which the denizens of the Endless Blue are blissfully free.  Elquans essentially soar within their aquatic air in a manner that would leave us envious of their ease.

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Endless Blue – Week 09 – 3D Combat   1 comment

Physics

Danger From All Sides

Despite the tranquil vista of oceans of the Endless Blue setting, Elqua is a very dangerous place to simply live.  Without solid boundaries to prevent the encroachment of other creatures, every cubic inch of the seas can hide a quick death in the jaws of a predator or by the passive defenses of prey.  To eat or be eaten is the basic law of nature, and on Elqua it is as true as anywhere.  Eventually, inevitably, sooner or later everything has to fight for its life.

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Endless Blue – Week 08 – Buoyancy   3 comments

Physics

Buoyancy

Every child knows things either sink or float, but day-to-day existence in the oceans of Elqua requires a character to be able to maintain his level in the water.  Bedding down on ocean floor is of little use if when you sleep during the night you wake up to find you’ve risen to the surface as you slumbered.  Just as a hot-air balloon can maintain its altitude in the atmosphere, aquatic creatures can do much the same under water.

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