S1·E13 Bicycle Helmets, Aluminum, Automotive Brakes, Lithium-Ion Batteries
31. mars 2001 · 21m
Expanded foam and protective shells are combined into bicycle helmets, aluminum is extracted and processed into usable metal, friction components and hydraulic parts become automotive braking systems, and precisely layered materials are assembled into rechargeable lithium-ion batteries.
Ikke vurdert ennå
Kommentarer
eldste først
Logg inn for å bli med i diskusjonen.