How It's Made S1 · EP13
Bicycle Helmets, Aluminum, Automotive Brakes, Lithium-Ion Batteries
7.7 · 2001 · Documentary · ~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.
