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Newton's Cradle, a still.

Fig. 221. §12 Toys

Newton's Cradle

Newton's cradle is a row of steel balls, each hung on two strings so it can only swing in one line.

PlaygroundHow to play

1Facts

Shelf
Toys
Kind
Built from a recipe
Made from
Drag a ball out to the side and let go.
Sound
Yes
Licenses
Own work (made in the page)

2How to play

Drag a ball out to the side and let go. Or tap to lift the end ball.

3Its controls

Table I. Every control on this Splash.

ControlKindRangeStart
Lift and let goTap
SwingButton

4About it

Newton's cradle is a row of steel balls, each hung on two strings so it can only swing in one line. Lift the end ball and let go: it strikes the row, the ball at the far end flies out, and the balls in between barely move. Let go of two and two fly out.

It shows two rules of physics at once: in each knock both the momentum and the energy carry through the row, so the same number of balls leaves as arrived. Each clack turns a little energy into sound and heat, so the swings slowly die away. Drag any ball out (the balls beside it come too) and let go, or tap to lift the end ball.

5Details

Splats
Opens at 200,000 at Mid Detail, 60,001 at Low, and up to 420,000 at Max

6Sources and credits

Made in Splashery. Its code is MIT.

7Share it

This link opens it in the Playground. To put it on your own page, add the element and one script tag. Every option.

https://splashery.app/play/?toy=newtons-cradle
<script type="module" src="https://splashery.app/play/src/element.js"></script>
<splashery-toy toy="newtons-cradle"></splashery-toy>

8Nearby