Dear Max: these days my humility is not a pretense. I understand that the fact Earth's orbit is elliptical, and the orbital speed is higher when Earth is close to the Sun.
It's the next step where I don't yet get it.
And while I have a version of QuickTime, the message said I'd have to cross their palm with silver to get update.
And I'm using a PC, not nothing from Apple can help me.
So if at first I don't succeed, I'll try,try again. Bill