Episode 14·December 5, 2013·22 min
Marble, Mahjong, Escape Slides
How do they produce marble, how do they make mahjong pieces, and how do they build escape slides? Finds out as more items are put under the microscope.
How do they produce marble, how do they make mahjong pieces, and how do they build escape slides? Finds out as more items are put under the microscope.