Steiner angle

P. W. Schmidt, D. Avnir, D. Levy, A. Hohr, M. Steiner and A. Roll, Small-angle x-ray scattering from the surfaces of reversed-phase silicas Power-law scattering exponents of magnitudes greater than four, J. Chem. Phys., 1991, 94, 1474. 

In the Steiner problem, Chapter 3, and the minimum surface area problems, discussed earlier in this chapter, the Laplace-Young equation had a simple form. This resulted from the zero excess pressure across any point on the surface of the soap film. In the case of a bubble, or clusters of bubbles, the excess pressure across any surface is not in general zero. However the Laplace-Young equation can be applied under these more general conditions. Plateau s rules concerning the angles at which surfaces and lines of soap films intersect apply also to the surfaces and lines of soap film produced by clusters of bubbles. 

K. Stock, R. Sailer, W.S.L. Strauss, M. Lyttek, R. Steiner, H. Schneckenburger Variable-angle total internal reflection fluorescence microscopy (VA-TIRFM) realization and application of a conqjact illumination device, J. Microsc. 211 (2003), 19-29. 

---