Hard · 5 lessons · ★ 4.5

Polymers & Plastic: The Material That Won't Go AwayLesson 2 · 3 min5
Glass & Ceramics: Liquid Sand and Baked EarthLesson 3 · 3 min5
Concrete: The Most Used Material on EarthLesson 4 · 3 min5
Carbon Fiber & Advanced CompositesLesson 5 · 3 min5