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Click herePhysics! "(from Ancient Greek: φυσική (ἐπιστήμη), romanized: physikḗ (epistḗmē), lit. 'knowledge of nature', from φύσις phýsis 'nature') is the natural science that studies matter, its motion..." So says Wiki...
Meanwhile, I'm going up, I'm going down...
Way up, way down!
It never stops!
Up and down, in and out... the best perpetual motion ever!
and AC/DC sings... "I'm deep in, deep in, Deep in the hole!"
j'aimerai bcp avoir ce cul dans mes mains et mettre en pratique le mvt perpetuel!