7 Oge
223 Ihe omume
3-2-1 Contact - Season 7 Episode 17
There is surprising strength in a tube because it is hollow. We see how tubes are used in bicycles, organs, and roofs.
- Afọ: 1988
- Mba: United States of America
- Dị:
- .Lọ nka: PBS
- Isiokwu:
- Onyeisi:
- Nkedo: