Euler's Disk | Shop Our Holographic Film Euler's Disks Online - Educational Innovations Screen reader support enabled.

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Asked by Sharon, August 10, 2012 at 11:24:43 AM EDT.
Q: How does it work? I see it transforms gravitational potential energy into kinetic. can you break that down for me?

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- Answered by Laurie, August 10, 2012 at 01:17:25 PM EDT.
  A: The disk is very heavy, and has a slight bevel on one edge. The mirror is slightly concave and very smooth. This reduces friction, enabling the disk to keep spinning for a very long time. It is much like spinning a coin, but as optimized as possible.
Asked by julie, July 6, 2021 at 06:33:26 AM EDT.
Q: is this product in stock?

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- Answered by Laurie, July 7, 2021 at 11:32:01 AM EDT.
  A: The best way to check is to add the product to your cart. There are some in stock currently.

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