At 10:17 PM 2/18/2011, Rich Murray wrote:
does classical mechanics always fail to predict or retrodict for 3 or
more Newtonian gravity bodies? Rich Murray 2011.02.18
I think there is a misconception here. There isn't any true two-body
or three-body problem because there are far, far more than
Yes, the Devil is in the details. It pays to know just how much Devil is in
there, and in old school 8 bit BASIC, there is much.
Classical Mechanics gives results that are reversible. So if the model isn't,
it's just a numerical flaw, and not a profound fact about physics.
Sent from my
On 02/18/2011 10:17 PM, Rich Murray wrote:
does classical mechanics always fail to predict or retrodict for 3 or
more Newtonian gravity bodies? Rich Murray 2011.02.18
[ ... ]
In fall, 1982, I wrote a 200-line program in Basic for the
Timex-Sinclair $100 computer with 20KB RAM that would
Hello Stephen A. Lawrence,
Thanks for the informative answer. It'd be impressive if the most
accurate methods since this review in 1987 agree with each other far
into the future and past -- how can we find out the details about
results for the 3-body problem, in commonsense terms? Is this
At 11:12 PM 2/18/2011, OrionWorks - Steven Vincent Johnson wrote:
Congratulations on your Sinclair project. I started on a TRS-80.
Heh! Well, *I* -- the word is drawn out -- started on an Altair 8800.
Pthtpthhh!
Jacques Laskar and his colleague Mickal Gastineau in 2009 took a more
thorough approach by directly simulating 2500 possible futures.
Each of the 2500 cases has slightly different initial conditions:
Mercury's position varies by about 1 metre between one simulation and
the next.[13]
In 20
Hi Rick,
I've been very busy with all the rabble rousing going on at the State
Capital. I'm currently uploading more videos of the situation at the
Capital.
Don't know if I can answer your question thoroughly. But I'll do what I can.
I'm not an expert on the matter. However it's my
I'm thinking your findings of irreversibility reflected the idiosyncrasies of
floating point math represented in binary numbers, and not the physics itself.
Sent from my iPhone.
On Feb 18, 2011, at 22:17, Rich Murray rmfor...@gmail.com wrote:
does classical mechanics always fail to predict
I'm thinking your findings of irreversibility reflected the idiosyncrasies
of
floating point math represented in binary numbers, and not the physics
itself.
I'm not sure what you mean by irreversibility but if you are referring to
my Celestial Mechanics computer programs, I have never stated
The only access to the physics itself we have with finite nervous
systems is by using digital approximations with finite number strings,
processed by algorithms of finite instruction size, so there are
always round-off errors, which always diverge without limit, even if
there are no close
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