11. Bölüm: 11. Bölüm

Bölüm Konusu

The show begins at ""Maggie's Machine Shop,"" where Maggie discusses pulleys. In Barre, Vermont, we see how granite is removed from a quarry and polished. In Paris, Todd and Monique examine the elevators at the Eiffel Tower. David and Chantal get a tip on riding bicycles.Film insert: a canal lock system.