[geocentrism] Re: Look-up Tables
- From: Regner Trampedach <art@xxxxxxxxxx>
- To: geocentrism@xxxxxxxxxxxxx
- Date: Wed, 14 Nov 2007 02:09:46 +1100
Quoting Steven Jones <steven@xxxxxxxxxxxxxxxxxxxx>:
> > Regner Trampedach wrote:
> >
> > That would definitely be the (computationally) cheapest way of doing it.
> > Especially considering the little computer power available at that time,
> > and the short span of time - i.e., a fairly modest list of parameters
> > would be adequate to determine the Moon's position with the required
> > precision, over the lifespan of a mission.
> > Again, due to the short lifespan of the missions, extrapolations from
> > observations at the beginning of each mission would probably be adequate.
> > That doesn't mean that we can't calculate, from fundamental laws of
physics,
> > what will happen to the Moon in, say, a month or a million years.
> >
> No, no, no, no!!! A million years, you have to be joking.
>
I am not joking, but you seem to have misunderstood me.
I wrote:
"That doesn't mean that we can't calculate, from fundamental laws of physics,
what will happen to the Moon in, say, a month or a million years."
That is the "existing mathematical model of the moons orbit" that you
refer to below. Please have a look at my previous post:
//www.freelists.org/archives/geocentrism/11-2007/msg00573.html
> The error margin would be so large with the look-up tables being only based
> upon the last 200 years of accurate (assuming the first century was so)
> observations that predicting the moon then would be unrealistic.
>
That is why I have carefully stated that such lookup tables, based on past
observations, will only work well for a limited time into the future. The
Apollo missions were such limited spans of time.
> Further, you previously ridiculed my look-up tables idea, but now
> without apology you've embraced it as being a sound notion. How come?
>
No, I objected to your idea that we cannot calculate the orbit of the Moon,
and I continue to do so.
> Not a word on an existing mathematical model of the moons orbit either,
> which you claimed is elementary and has been completed to astonishing
> accuracy.
>
I would again refer you to my previous post:
//www.freelists.org/archives/geocentrism/11-2007/msg00573.html
Regards,
Regner
>
> Steven.
>
>
>
>
> Regards,
>
> Regner
>
> - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
> -
>
>
> Quoting Jack Lewis <jack.lewis@xxxxxxxxxxxx>:
>
>
>
> Dear Steven,
> Am I right in assuming that mathematics for the Apollo moon trips were
> calculated by using a look-up table?
>
> Jack
>
>
>
>
>
>
>
>
>
>
>
>
Other related posts:
