Kozyrev mirror

The Kozyrev mirror (named for Nikolai A. Kozyrev, Soviet astrophysicist) is a spiral cylinder made of polished aluminum (or other reflective material) that is intended to magnify sources of radiation. The device was, it is reported, originally developed and experimented with by Vlail Kaznacheyev at the Institute of Experimental Medicine of Siberia in research devoted to the study of extrasensory perception (ESP).