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Book 26, Question 8 · Video

How did a spring that fell off a shelf become the Slinky?

Video · 1:42 · Crafty Clover explains, from A Million Whys Book 26

In 1943, engineer Richard James was testing springs for ship equipment when one fell off a shelf. Instead of landing in a heap, it flipped end over end and walked across the floor. He thought it would make a great toy. His wife named it the Slinky. It first went on sale in 1945, and the toy sold out quickly.

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What Crafty Clover says in this video

Intro

Hi there, curious minds! I'm Crafty Clover! Let's discover something amazing. How did a spring that fell off a shelf become the Slinky?

The Big Idea

What happens when a spring falls off a shelf? Usually nothing! But one spring started walking.

The Fall

Step one: The Fall. In 1943, engineer Richard James was testing springs for ship equipment when one fell off a shelf. He watched closely.

Walking

Step two: Walking. Instead of landing in a heap, it flipped end over end and walked across the floor. He thought it would make a great toy.

Slinky

Step three: Slinky. His wife named it the Slinky. It first went on sale in 1945, and the toy sold out quickly.

A Closer Look

Let's take a closer look! It has many coils. Gravity pulls it. It flips over. It walks down stairs.

Quick Facts

Quick facts! A Slinky can walk down stairs by itself. Springs were for ships. He noticed the walk. His wife picked the name.

Think Like a Scientist

Now, think like a scientist! Place a Slinky at the top of a few steps. Give it a small push. Let it go. Watch how it moves. Draw each step of its walk.

Outro

A spring that fell off a shelf became the Slinky when Richard James saw it flip end over end and walk across the floor. It became a famous toy that sold out fast. Science is amazing! Remember, every big discovery starts with a small question. Keep looking, keep learning, and keep asking why! Crafty Clover can be found on Amazon Books, Google Bookstore, and Apple Books. Available for purchase or download! Bye for now!

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