Metamaterials made of magnetic photonic crystals have been generated and tuned to a theoretically predicted transition point at which peculiar optical properties emerge. For example, when light is ...
Mirrors aren’t only for checking hair. They fix light, balance scale, anchor furniture, and create depth where walls close in ...
The flashes of light were taken during the Palomar Sky Survey, a project that mapped the northern sky between 1949 and 1958.