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Original Hoberman Sphere - Rainbow
Original Hoberman Sphere - Rainbow
$35.50
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Spinning Top with Handle $10.00

We are pleased to offer this high quality top, which is made in south-central Pennsylvania.

The wooden holder helps get a nice spin on the top. This top used to be considered ideal as a child's first big-kid top!

How does it work? Conservation of angular momentum keeps the top upright.

  • Newton's Laws applied to spinning objects say that angular momentum is conserved when there is no outside torque at work.
  • The torque applied by gravity causes the top to lean and the axis of the top to precess - spin around slowly in the direction of the top
  • Friction on the top slows it down and makes it lean closer to the ground.

For more about the physics of tops, click here!

Made in Lancaster, Pennsylvania USA.

Warning! Not for children under thirteen years of age per newly instituted U.S. laws.

Tops are either red or blue. They are stained, not painted. The appearance may vary slightly due to the availability of materials and/or slight improvements by the craftsman.

Gift wrap orders: input salutation in the comment section at the end of the ordering process.

When these are gone, there will be no more! Our small hand-made U.S. toy makers have shut, or are shutting down production.

Federal Hazardous Substances Act (15 U.S.C. 1261 et seq.) warning: This item is individually hand-made in the U.S.A. and therefore does NOT conform to the third party testing requirements due to the prohibitive cost of such testing.

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