Page:Ueber die Ablenkung eines Lichtstrals von seiner geradlinigen Bewegung.djvu/12

 but which has no perceptible influence in practice; as it concerns us, what has a real influence in respect to practice. Our knowledge will be equally extended by both. For example, we prove that the diurnal aberration, the disturbance of the rotation of earth, and other such things in addition, — are imperceptibly small.