摘要: This is an informal review of some the ideas, both historical and current, in theory interfacial structure tension. After recalling briefly van der Waals late 19th century, noting analogy between equations simplest version that those classical dynamics a particle, account goes on to consider more recent elaborations applications central ideas. These include three-phase equilibria, wetting pre-wetting, line boundary tension, fluctuations structures interfaces lines. In study there quantum mechanics Schrodinger equation, just as equilibrium average structures.