EpisodeS7E1730 min1988-11-01
3-2-1 Contact
Structures: Pipes and Reeds
There is surprising strength in a tube because it is hollow. We see how tubes are used in bicycles, organs, and roofs.
3-2-1 Contact
There is surprising strength in a tube because it is hollow. We see how tubes are used in bicycles, organs, and roofs.