The Girl Who Rescued The Broken Crayons
Why do short crayons snap, and how can a tube save them?
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The story
Eleven-year-old Cassidy Goldstein was drawing with broken crayon stubs that kept crumbling in her fingers. She spotted plastic tubes used to keep flower stems watered, dropped a stub inside, and suddenly had a strong, comfortable crayon again. Her Crayon Holders won a young inventor award and went on sale.
What you'll learn
- A short thin rod bends less, so the force concentrates and it snaps.
- A tube around the stub spreads your grip force over more surface.
- Cassidy borrowed a part made for a completely different job.
- Kid takeaway: look around for something that already almost solves it.
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