In the absence of a magnetic field the period of all these oscillations is the same. But as soon as the electron is exposed to the effect of a magnetic field, its motion changes. ↗
I grew up on the old EC comic books before the Comics Code in North American and with all sort of good-natured fun. I never had nightmares I think because all of the old horror stuff that I was exposed to was well meaning in a certain sense. ↗