...it may be regarded as a vibration of frequency £ (», + n2), and of amplitude 2 cos TT (n2 — n2) t. In passing through zero the amplitude changes sign,...character act upon a system whose natural frequency is $ (n, + n^), the effect produced is comparatively small. If the system start from rest, the successive...

...(1); and it may be regarded as a vibration of frequency J (w, + n2), and of amplitude 2 cos TT (n, — n^) t. In passing through zero the amplitude changes...sign, which is equivalent to a change of phase of ISO3, if the amplitude be regarded as always positive. This change of phase is readily detected by...

...be regarded as a vibration of frequency y? (nl -f- «2), and of amplitude 2cosir(nl — n2)t. Hence, in passing through zero, the amplitude changes sign,...positive. This change of phase is readily detected by measurements in drawings traced by machines for compounding observations. If a force of the above character...

...be regarded as a vibration of frequency y2 (nl + n2), and of amplitude 2cosir(«t — n2)t. Hence, in passing through zero, the amplitude changes sign,...positive. This change of phase is readily detected by measurements in drawings traced by machines for compounding observations. If a force of the above character...

...side only.'122 In reply to Bosanquet's objection,123 that Koenig's beat-note "* Lord Rayleigh says : ' In passing through zero, the amplitude changes sign,...to a change of phase of 180°, if the amplitude be always regarded as positive,' supra, p. 38. ""Cf. Fig. 41, Quelques Expériences d'Acoustique, p. 144....

...only.'122 In reply to Bosanquet's objection,123 that Koenig's beat-note 120 Lord Rayleigh says : ' In passing through zero, the amplitude changes sign,...to a change of phase of 180°, if the amplitude be always regarded as positive,' supra, p. 38. m Cf. Fig. 41, Quelques Experiences d'Acoustique, p. 144....

...side only.'122 In reply to Bosanquet's objection,123 that Koenig's beat-note lx Lord Rayleigh says : ' In passing through zero, the amplitude changes sign,...to a change of phase of 180°, if the amplitude be always regarded as positive,' supra, p. 38. "* Cf. Fig. 41, Quelques Experiences d'Acoustique, p. 144....

...regarded as a vibration of frequency £ fa + nj), and of amplitude 2 cos TT (HI — n«.)<. Hence, in passing through zero, the amplitude changes sign,...measurement in drawings traced by machines for compounding observations. If a force of the above character act upon a system whose natural frequency is -£(ni...