Re: accruate "sundials"


<geraldkelleher@xxxxxxxxxxx> wrote in message
news:1119172413.736043.132480@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
> > > > > Do you still think you have a choice in designating two values for
> > > > > axial rotation through 360 degrees ?.
> > > > >
> > > >
> > > > Don't we have a choice between many values, depending on which other
> > body we
> > > > choose to pretend to be stationary?
> > >
> > > Dawn,noon,dusk,dawn ... is a consequence of the single axial rotation
> > > of the Earth,start to pretend that you have choices on this matter
and
> > > you are not an astronomer,it is that simple.You and the mathematical
> > > theorists are giving yourselves choices you do not have and worse
> > > still,you are tying the Earth's axial rotation directly to external
> > > references
> >
> > But isn't the sun, which gives us dawn, noon, & dusk, etcetera, an
external
> > reference?
>
> Dawn,noon and dusk are generated by the independent axial rotation of
> the Earth into and out of its own orbital shadow.

But isn't this shadow caused by obscuring the light from the sun?


.

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