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Rattlebacks
The rattleback spinner is a fascinating semi-ellipsoidal top that, when spun, wobbles and rattles around before eventually righting itself. This unique top is believed to have been invented by Benjamin Franklin in the 18th century, and it continues to fascinate and amuse people to this day.
The rattleback spinner is made up of two identical curved surfaces that are hinged together. When you spin it, the two surfaces start to wobble against each other. This creates a rattling noise that gradually slows the top down until it eventually rights itself.
The rattleback spinner is a lot of fun to play with, and it's also a great educational tool. It can help children learn about inertia and momentum, and it's a great way to teach them about the principles of physics.
The rattleback spinner is also a popular choice for science experiments. For example, you can use it to study the effects of gravity and friction. You can also use it to study the dynamics of rotating bodies.
The rattleback spinner is a unique and fascinating top that has been entertaining people for centuries. It's a great way to teach children about physics, and it's also a lot of fun to play with.
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