Car Batteries; Chocolate; Toothbrushes How Do They Do It? : Season 7 Episode 13
Discovery 51m
Aired: August 6th, 2010 @ 10:00 PM EST on Discovery
How are banknotes designed and printed; and how is leather hide transformed into pairs of shiny shoes?
Discovery 51m
Aired: August 6th, 2010 @ 10:00 PM EST on Discovery
How are banknotes designed and printed; and how is leather hide transformed into pairs of shiny shoes?
