Respuesta :
German Scientist named William Roentgen.
Roentgen discovered X-Rays while researching at the University of Wurzburg in 1895. Roentgen noticed rays emanating from black paper and theorized as to what they were.
An Antenna, Bell Labs Holmdale Horn Antenna in New Jersey.
American radio astronomers Robert Wilson and Arno Penzias discovered the cosmic microwave background radiation CMBR.