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Original Hoberman Sphere Rainbow (Expands 24cm to 78cm diameter)
HomeEducational Original Hoberman Sphere Rainbow (Expands 24cm to 78cm diameter)
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Original Hoberman Sphere Rainbow (Expands 24cm to 78cm diameter)

$49.99

SKU HO0104
Categories
  • Educational
  • Science
  • Sensory
Pieces

21

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Description

Chuck Hoberman's eponymous sphere is one of the best-loved toys of the last quarter century. But it's only one example of his incredible work in transformable design. From adaptive nanotech to flexible building materials, Hoberman has created surprising and inventive designs at every scale.

The Hoberman sphere is a structure resembling a geodesic dome, and which can fold down to a fraction of its normal size. The scissor-like action of its joints enables it to do this. It's impressive to watch. Some museums have this sphere on display, using a motorized control system to continuously change the size of the sphere from fully closed to fully open.

If you get your hands on one of these, have a look how it works. Look at how the joints bend relative to each other when the sphere opens and closes. If you look at it closely you can see a pattern in how its structured. It's a beautiful toy both aesthetically and how it's put together. The geometry of the pieces have to work smoothly together and not interfere with each other, otherwise the sphere will bind up somewhere and it won't be able to open and close properly.

This humble toy has endless discussion points for inquiring minds… Does the sphere feel heavier when it's open or closed? Obviously, the weight is the same, but sometimes the shape of an object can affect the perception of weight.

You can play many different games and create many interesting effects with the Hoberman sphere. This is explained with the manual that comes with the sphere.

One really neat trick you can do with the sphere is to spin the sphere while in its open position, while holding it between your hands. Then push the sphere into its closed position, and the sphere spins faster as a result. This is the same effect that's created when a figure skater pulls his arms in during a spin. It causes him to spin faster. In scientific terms, this effect is caused by conservation of momentum, which is a subject covered in physics classes. See! It's not just an expanding/contracting ball… it's actually amazing!

 

 

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About Us

Imagine If is a South Australian owned and operated retail business specialising in high quality and educational toys. With 2 stores in Adelaide and a range of over 10,000 items, we’re confident that we have your needs covered.

BURNSIDE

Shop 25, Burnside Village
447 Portrush Road,
Glenside 5065
South Australia

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Sat: 8:30am - 5pm
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(08) 8338 5258

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Shop 30/31, Mitcham Shopping Centre
119 Torrens Road,
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South Australia

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Sat: 8:30am - 5pm
Sun: 10:30am - 4:30pm

(08) 8357 3300
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