45 min listen
The Pencil
FromInvention
ratings:
Length:
45 minutes
Released:
Jan 20, 2020
Format:
Podcast episode
Description
It’s easy to take the pencil for granted, but that eraser-capped wooden cylinder with a core of graphite has a story and a history -- and Robert and Joe explore it in this episode of Invention.
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Released:
Jan 20, 2020
Format:
Podcast episode
Titles in the series (66)
The X-Ray by Invention