After the German physicist Röntgen discovered X-rays, many scientists wanted to become the next Röntgen. Brownlow, a professor of physics at the University of Nancy in France, was an outstanding physicist. Due to his achievements in the field of electromagnetism, he was elected as a corresponding academician of the French Academy of Sciences and won the academy's grand prize twice. In 1903, while studying the polarization phenomenon of X-rays, he claimed to have observed a new type of unknown ray, which he named N-ray in honor of the university where he worked.