N-rays
Physics (now historical )
noun
A form of radiation supposedly discovered in 1903 by R. Blondlot of the University of Nancy, but later found to be spurious.
- N¹-rays (originally n₁-rays) were another supposed form of radiation that were said to have the opposite effect to N-rays..
Origin
Early 20th century; earliest use found in Nature: a weekly journal of science. From from the initial letter of the name of the University of Nancy.