Get smart curated videos delivered to your inbox every week.      
The Kid Should See This

How are pencil sharpeners made?

Each part of a small ‘prism’ or ‘pocket’ pencil sharpener is cut, shaped, stamped, baked, bathed, polished, and assembled with such specifically made machinery, traveling through feeds and funnels along the way. See how the steel blades are finished and attached to the magnesium alloy sharperner body, all super up close, in this episode of How It’s Made: Pencil Sharpeners from the Science Channel.

Prism pencil sharpeners make fan shaped shavings like those in Marta Altés’ experiments with pencil shavings, an inspiration.

Watch these videos next: How pencils are made at the Derwent Pencil Factory, Doro Ottermann’s Magic Artbox Animations, How It’s Made: Matches, and How It’s Made: Balloons.

This award-winning video collection is reader-supported. Become a sustaining member to keep TKSST online and free for everyone, including teachers and parents who use it as a resource to spark learning and curiosity for kids.

🌈 Watch these videos next...

To the Scientists of the Future: Materials science with EUPHRATES

Rion Nakaya

Ultra Fast Robots Pick & Place Batteries to Form Group Patterns

Rion Nakaya

Machining a cube in a cube in a cube from a single metal block

Rion Nakaya

How Crayons Are Made – Sesame Street

Rion Nakaya

Beautiful Chemical Reactions

Rion Nakaya

Melting metal in your hand: Gallium

Rion Nakaya

How pencils are made at the Derwent Pencil Factory

Rion Nakaya

World Championship Blacksmiths’ Competition Tong Making Class

Rion Nakaya

The Celluveyor, a robot-wheel conveyor belt system

Rion Nakaya