The History of Pencil Lead, Told From the Dawn of the Universe

NPR's Skunk Bear explained the history of pencil lead from the beginning of the universe to a modern pencil factory in Jersey City, New Jersey.

images via Skunk Bear

Related Laughing Squid Posts

• How to Make a Matchbox Microphone Out of a Matchbox and Pencil Leads
• New Exquisitely Detailed Sculptures Carved Onto the Protruding Lead at the End of a Pencil
• Wonderful Miniature Sculptures Carved in Pencil Graphite