When looking at calcite under a microscope, a scientist would immediately recognize the crystalline form of calcium carbonate by its rhombohedral appearance. That is, calcite is shaped like a ...
What happens when you put real calcite crystals in the oven? That simple question turns into a surprisingly satisfying ...
Forget about fancy metamaterials that can make microscopic objects invisible--researchers at two different universities have independently shown that larger objects can be rendered invisible using a ...