Directional wetting in anisotropic inverse opals

Porous materials display interesting transport phenomena due to the restricted motion of fluids within the nano- to micro-scale voids. Here, we investigate how liquid wetting in highly ordered inverse opals is affected by anisotropy in pore geometry. We compare samples with different degrees of pore asphericity and find different wetting patterns depending on the pore shape. Highly anisotropic structures are infiltrated more easily than their isotropic counterparts. Further, the wetting of anisotropic inverse opals is directional, with liquids filling from the side more easily. This effect is supported by percolation simulations as well as direct observations of wetting using time-resolved optical microscopy

Analogy at war: proportionality, equality and the law of targeting

This text is an inquiry into how the international community is understood in and through international law. My prism for this inquiry shall be the principle of proportionality in international humanitarian law, relating expected civilian losses to anticipated military advantage. To properly understand proportionality, I have to revert to the structure of analogical thinking in the thomistic tradition. Proportionality presupposes a third element to which civilian losses and military advantage can be related. In a first reading, I develop how this tradition of thought might explain the difficulties contemporary IHL doctrine has in understanding proportionality. If military commanders misconceive the third element as the sovereignty of their own state, they will invariably apply the proportionality principle in a paternalistic manner. This would obviate the most rudimentary idea of equality among states and do away with the common of an international community. In a second reading, I shall explore whether this third element could instead be thought of as a demos, while retaining the existing framework of analogical thinking. My argument is that this secularizing replacement is possible. Practically, its consequence would be a radical change in the task of the responsible military commander determining proportionality. That commander would now need to rethink civilians endangered by an attack as a demos whose potentiality must be preserved