

Nuclear Physics Explained
Viewing the World with Radiation
TV-PG
S1 • E24 Apr 26, 2018 33mFinish the course by surveying the many uses of radiation on Earth and beyond. Passive detectors identify radioactive contamination and clandestine nuclear bomb tests. Cosmic rays can be used to "X-ray" ancient buildings and learn the secrets of their construction. And, see why some scientists speculate that humans thrive on Earth thanks to an ancient bath of radiation from a supernova explosion.