Modern Marvels - World's Strongest (1)

Seizoen: 12 - Aflevering: 47 / 483 - Eerst uitgezonden: 18 oktober 2006 - Episode ID: 614641

Strength...a powerful word, but what does it mean? How is it measured? Why are some things simply stronger than others. How strong is a rope, a tractor, a diamond, a tugboat or even plastic. How and why strength matther to us every day.