Rattleback

$4.75$19.75

Defy physics with one of the simplest yet curious and puzzling phenomena in the world of science!

CHOOSE PLASTIC OR METAL

Defy Newtonian physics with one of the simplest yet curious and puzzling phenomena in the world of science and magic.
Also known as a Celtic Stone, the semi-ellipsoidal Rattleback defies the laws of the conservation of angular momentum.  You’ll convince friends that you can control object movements with nothing more than the sheer power of your mind.

You begin the curious demonstration by flicking one end of the Rattleback with your fingertip, causing it to spin clockwise.  It will begin to “rattle” as you gesture a magical motion towards it.  You continue to gesture and suddenly it comes to a complete stop and reverses its direction.

Metal (Gold)

The Gold Rattleback is made of high quality alloy.

Metal (Silver)

The Silver Rattleback is made of high quality alloy.

Plastic

This Rattleback is made of durable plastic.  Color will vary.