


In this work, I deal with thermal states, their distribution
and equivalence, through wave/vibration phenomena of the air. This work
might be a model for how thermal exchange as an event creates a displacement
in spacetime.
The motion of the compression wave that propagates in air follows the
dynamics described by waveequation formulas in physics. Basically, this
dynamics requires several conditions, namely, a boundary condition of
the observation space, the initial condition of the compression wave,
and the propagation speed in the medium. In the case of air, the propagation
speed is in proportion to the air temperature. As a result, when the space
has certain boundaries, these conditions emphasize specific frequencies
of air vibration. In terms of wave dynamics, this means that the resonance
of the space is brought into relief by stationary waves.
In this work, I create several observational spaces by arranging fixed
measurments (caliber, length and thickness) of glass pipes that are treated
differently according to thermal conditions. For each of the spaces it
is possible to consider that the boundary conditions are the same, namely,
glass pipe as the primary matter and the internal measurments. When the
spaces are characterized by even thermal distribution and temperature,
resonances appear at identical frequencies. In contrast, this work sets
in motion varying thermal states to each observational space. By affecting
the temperature of each space through a difference in lightingeither
natural or artificialthe propagation speeds in the different spaces
vary. And the emphasized frequencies also differ in proportion to the
temperature.
But let us also look at this from a different point of view, i.e. thermodynamics.
The thermal agitation is a divergent phenomenon that reaches an equilibrium
state of thermal distribution. In this sense, the spaces constantly exchange
the thermal state amongst each other. The temperature which is generated
by thermal agitation derives from molecular movements that are excited
by light as electromagnetic waves. This is not an issue of motion dynamics
in terms of individual molecular movement, but rather, an issue of statistical
dynamics. Moreover, light equates with a kind of electromagnetic wave
as a disposition of spacetime itself which can propagate even through
a vacuum. In a way, light is concerned with spacetime itself which we
generally regard as a criterion in distinguishing things. This view binds
the vibration phenomena affected by thermodynamics to an issue of spacetime.
Thus the displacement of a stationary wave that we find through this work
is a statistical result of phenomena which is generated by light as a
disposition of spacetime. I hope this work will function as an opportunity
to imagine a state of spacetime focused around light, temperature and
vibration.
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