Sticky physics of joy: On the dissolution of spherical candies

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The three candies dissolve more or less linearly in time, as proposed by our simple model. Below 2 mm in diameter, the behavior of the dissolution changes drastically. These points have been excluded from the fi t-area.

Andreas Windisch, Herbert Windisch, Anita Popescu
Assuming a constant mass-decrease per unit-surface and -time we provide a very simplistic model for the dissolution process of spherical candies. The aim is to investigate the quantitative behavior of the dissolution process throughout the act of eating the candy. In our model we do not take any microscopic mechanism of the dissolution process into account, but rather provide an estimate which is based on easy-to-follow calculations. Having obtained a description based on this calculation, we confirm the assumed behavior by providing experimental data of the dissolution process. Besides a deviation from our prediction caused by the production process of the candies below a diameter of 2 mm, we find good agreement with our model-based expectations. Serious questions on the optimal strategy of enjoying a candy will be addressed, like whether it is wise to split the candy by breaking it with the teeth or not.
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Written by physicsgg

September 2, 2012 at 10:21 am

Posted in PHYSICS

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