Re: Sulle critiche del Professor Fabri al mio articolo sulla

From: Furio Petrossi <furio.petrossi_at_gmail.com>
Date: Wed, 5 Jan 2022 06:14:33 -0800 (PST)

Il giorno mercoledì 5 gennaio 2022 alle 14:35:03 UTC+1 cordac...._at_gmail.com ha scritto:
> Grazie per la segnalazione. Ne approfitto per chiarire la questione una volta per tutte.

Cito alla penultima pagina


"If e < 1 (equivalent with h < 0 from relation (31)), the trajectory in plane Pi(t) is bounded. In plane Pi(t) it is an ellipse. As plane Pi(t) has a fixed point, that is the attraction center; the spatial region where the trajectory is located represents the region between two concentric spheres, one with radius p/(1+e), and one with radius p/(1-e).

In the particular case e = 0. the trajectory in plane PI(t) is a circle with its center in the attraction point and the radius p. Then the body trajectory is a spherical curve, generated by the rigid rotation of this circle with angular velocity
-omega."

 Mi soffermo su "the trajectory (...) it is an ellipse". Quindi una curva chiusa, se ben intendo.
E' corretto?

fp
Received on Wed Jan 05 2022 - 15:14:33 CET