Inside the Factory

Season 4 Episode 8: Pencils

Gregg Wallace is in Germany at a historic pencil factory where they produce 600,000 writing implements a day. Cherry Healey examines the astonishing properties of graphite. Historian Ruth Goodman traces the origin of pencils to a 15th-century graphite discovery in the Borrowdale valley.

Genre:

Documentary

Seasons:

10

Episodes:

75

Cast:

Paddy McGuinness, Cherry Healey, Ruth Goodman

Quality:

HD

Duration:

59 min

First Air:

2015

Rating:

7.9