Aired Thursday July 11, 5:30am - 6:00amon Quest +1

How It's Made

Series 25 Episode 13: Traffic Signal Poles, Coffee Filters, and Chainsaw Mining Machines

See how traffic signal poles, coffee filters, and chainsaw mining machines are made.

Category
Documentary / Science
Original air date
2015-07-02
Cast and crew
  • Lynne AdamsHost
  • Brooks MooreNarrator