Show sin I 1 r to it bentse bay bluy in 1895 a n I 1 chemist cherni mt dIS discovered Lovered rays emanating from the clement uranium lurn which losa I 1 caged propel ties similar to the Rw rays recent ex peri ments by the boriin high school at 0 tt that I 1 1 roved that a new ele in 11 t lit Is responsible for the Becque rel ras ani the interesting fact has been ob observe servel 1 that these ras render every transparent substance Buba tance luminous in the darkness the rays arake it possible to tell genuine dla chat monds front from artificial ones in the dark |