Московский государственный технический университет имени Н. Э. Баумана
In 1978, Sergei P. Efimov from Bauman Moscow State Technical University found unexpected effect in theory of the wave refraction. His research is based on fundamental property of Maxwell's equations to overcome restrictions of Fresnel equations. He found parameters of totally non-reflecting crystal i.e. of anisotropic medium. Found property is important for developing concepts of metamaterials.