Spirographs

Author:Chip Rollinson

While this applet's animation is not smooth, it is smooth if you download its file and open it in the GeoGebra app. Here's a site where you can create your own designs, save them, etc: http://nathanfriend.io/inspirograph/

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Shells
רישום חופשי
z`]]
Volume by Shells Around y
Volume by Disk/Washer around y

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