; how the factually accessible bodily data, in a world charged through hypothetical idealization with as yet unknown infinities, are to be brought to causal determination in both aspects; how the hidden infinities in these data are to be progressively disclosed according to methods of measuring; how, through growing approximations in the sphere of shapes, more and more perfect indices of the qualitative plena of the idealized bodies become apparent; how the bodies themselves, as concrete, become determinable through approximations in respect to all their ideally possible occurrences: all this was a matter of discovery in physics.