Chinese p boys peeing temperature
Figure 4. The temperatures, jet velocity, volume of the air pocket and heat flow received by the pocket are plotted as a function of time for pee-pee boy 2.
In that isochore case, the pressure difference between the air pocket and the environment is maximum, so that the jet velocity no longer depends on the pee hole diameter, but simply on the ratio of temperatures of the hot fluid over the environmental temperature.
Thermodynamics and historical relevance of a jetting thermometer made of Chinese zisha ceramic
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Just like Yixing teapots made of the same clay, tea pets are unglazed, so that they are mostly monochromatic with a rough surface. All these but the pee-pee boy produce displacements of either equal dimension or smaller than their size.
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The scientific investigation of artwork and archaeological artefacts: Raman microscopy as a structural, analytical and forensic tool.
In that case, the volume of the air cavity can be considered constant during the heating and jetting process. A theoretical model is constructed to describe the pee-pee boy as a thermometer and a heat engine.
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