Hundreds of meters below the surface of the ocean, Laura Robinson probes the steep slopes of massive undersea mountains. She's on the hunt for thousand-year-old corals that she can test in a nuclear reactor to discover how the ocean...

Our new strontium video includes a trip to the village of Strontian, a flame test and some footage of nuclear explosions! More chemistry <a href='http://www.periodicvideos.com/' target='_blank' rel='nofollow'>at</a> href='http://www.periodicvideos.com/' target='_blank' rel='nofollow'>at

What is reality? What is the standard model trying to tell us? Are we living in the 11 dimensions of string theory?



The holy grail of physics is a theory of everything. It may show the...

After the Chernobyl Disaster, researchers have been studying the movement of radioactive contamination all over central Europe. Fortunately, that radioactive contamination is decreasing in just about every living thing, except for one...