  We observed the conformation of threads that free released from different
altitudes. We also explore the effect of wetting liquid on the conformation
developed. When released from an altitude, the thread conformation changes when
free falling and reaches the stable conformation (identified by a constant
end-to-end distance) after fall over a period of time. We identified that the
conformation of the threads replicated the conformation of long polymer chains.
Therefore, we applied a two-dimensional random walk model to explain the stable
conformation where the thread length is treated as the random walk time (number
of polymer segment). A two-dimensional random walk model was used since during
free fall, the conformation is assumed to develop on the horizontal plane.
Surprisingly, we get the scaling power that is exactly similar to the scale
power of two dimensional random (walk). By fitting how end-to-end distance
changes with time, we obtain an equation that is exactly similar to modified
Avrami equation for process of phase transformation in one-dimension space (D =
1), where the exponential power is n = D+1 = 2. Therefore, we can state that
the time evolution of thread conformation process is identical to
crystallization process in one dimensional space. This is very interesting
finding, showing that the microscopic process (crystallization) can be
replicated in macroscopic scale.
