Modern Marvels
Season 15, Episode 36: Salt
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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.
All Episodes - Season 15
Episode 1
Milk
Episode 2
Carbon
Episode 3
90s Tech
Episode 4
Superhighways
Episode 5
World's Strongest III
Episode 6
Strange Weapons
Episode 7
Whiskey
Episode 8
Alaskan Fishing
Episode 9
Bread
Episode 10
Gadgets 3
Episode 11
Locomotives
Episode 12
Rats
Episode 13
Mad Electricity
Episode 14
Axes
Episode 15
Most Dangerous
Episode 16
Super Hot
Episode 17
Lead
Episode 18
Corpse Tech
Episode 19
Ice Cream
Episode 20
Bathroom Tech II
Episode 21
Crashes
Episode 22
Underwear
Episode 23
Batman Tech
Episode 24
Coin Operated
Episode 25
Secrets of Oil
Episode 26
Iron
Episode 27
Wheat
Episode 28
Dangerous Roads
Episode 29
Mold & Fungus
Episode 30
Soft Drinks
Episode 31
Corrosion & Decompositon
Episode 32
Bulls-eye
Episode 33
Halloween Tech
Episode 34
The Horse
Episode 35
The Turkey
Episode 36
Salt
Episode 37
Car Wash
Episode 38
Retro Tech
Episode 39
Super Human
Episode 40
Measure It
Episode 41
Night
Episode 42
Fry It
Episode 43
Mega Meals
Episode 44
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