We used x-ray tomography to characterize the geometry of all bubbles in a liquid foam of average liquid fraction φₗ≈17% and to follow their evolution, measuring the normalized growth rate G=V^-1/3dV/dt for 7000 bubbles. While G does not depend only on the number of faces of a bubble, its average over f-faced bubbles scales as Gf~f-f₀ for large f's at all times. We discuss the dispersion of G and the influence of V and φₗ on G.
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Lambert et al. (2007) studied this question.
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