Lovas tornászlány - balansz lemezjáték
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Price:
17,390 Ft
| Model: | lem-0930-5 |
| Availability: | Elfogyott |
| A tornászlány ügyesen egyensúlyoz, egy lábon, a ló hátán. | |
Description
Perpetual motion describes "motion that continues indefinitely without any external source of energy; impossible in practice because of friction." It can also be described as "the motion of a hypothetical machine which, once activated, would run forever unless subject to an external force or to wear".
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