Modern Marvels - Season 15 Episode 36: Salt
2008-12-01
- Documentary
It's the only rock we eat, and we need it to live. History has shown that those who have salt rule the world--and today, this versatile substance has 14,000 known uses..
2008-12-01
It's the only rock we eat, and we need it to live. History has shown that those who have salt rule the world--and today, this versatile substance has 14,000 known uses..
