Physics model for wringing of wet cloth

Abstract

One activity that has been performed by human beings for a long time is washing clothes. Before the invention of the washing machine, clothes were washed by hand and then wrung before drying in the open air. When observed carefully, the wringing of cloth presents some interesting phenomena. However, there are no reports on the physical modelling of this very old activity. This paper reports a simple model to explain the discharge of water from clothes when squeezed. A simple tool was also designed to retrieve data to confirm the theory. We found that the theoretical predictions accurately explained the experimental results. The experiments were conducted on two types of cloth: towels and batik cloth. We also obtained a universal curve to which all the data converged.

A Sarong rolled around a body demonstrates that the force for separating two sheets joined by folding and rolling is very large

“…Goldberg and O'Reilly described the geometry evolution of cooking spaghetti [13]. The present author has also investigated simple common phenomena such as bending of fireworks [14], wringing of wet cloth [15], rolling of a cylinder containing granules [16,17], sand tunnel collapse [18], rice winnowing [19], measuring the atmospheric temperature in an aircraft cabin [20], and bending of vertical sheets that lead to a phase transition [21].…”

Kite festival: the physics behind the oscillations of a kite’s long tail

“…Based on such approaches, we obtain simple equations that can be solved analytically or computed using simple numerical procedures, for example, by using an excel spreadsheet. We report similar approaches by developing physical models underlying some common phenomena in our daily lives [11][12][13][14].…”

Physics Model for Rope Jumping Game

“…We have reported many studies related to these matters (Abdullah, et. al., 2014;Rahmayanti, et. al., 2016;Yuliza, et.…”