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Home Energy Gyroscopes & Tops   Inverting Pop Tops
Inverting Pop Tops
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Inverting Pop Tops - Natural Wood (bag of 5)
TOP-300
Price:
1 or more: $5.95 ea.
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Inverting Pop Tops - Natural Wood (bag of 20)
TOP-305
Price:
1 or more: $19.95 ea.
Qty:
Inverting Pop Tops - Red (bag of 5)
TOP-330
Price:
1 or more: $5.95 ea.
Qty:
Inverting Pop Tops - Red (bag of 20)
TOP-335
Price:
1 or more: $19.95 ea.
Qty:
When these small wooden tops are spun, they start precessing until the heavier hemispherical end is lifted, seemingly against gravity.
Inverting Pop Tops
Click on More Images to view this item in motion.
When these small wooden tops are spun, they start precessing until the heavier hemispherical end is lifted, seemingly against gravity. The Nobel Museum in Stockholm reports that Neils Bohr was captivated by this top when first observed over fifty years ago. These newly designed tops, with a hollowed out sphere, are like the original and work extremely well! The natural wood ones can be decorated by students. 3.8 cm (1.5") tall, 3.2 cm (1.25") dia.



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