Powerball® is a gyroscope but what exactly is that?, by NSD Powerball
Por un escritor de hombre misterioso
Descripción
‘A device consisting of a wheel, disc or rotor mounted so that it can spin rapidly about an axis which is itself free to alter in direction’ Visually seeing a gyroscope at work makes it easier to…
Powerball® is a gyroscope but what exactly is that?, by NSD Powerball
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