Quote:
Originally Posted by Nesti
Absolutely! Newtonian gravity can calculate a spacecraft voyage across billions of kilometers and through a 100m x 100m window. Add relativistic considerations, and it can be much better...the true on-board [relative] time can also be calculated...which is important.
I believe it depends upon what the application is as to whether they use one or the other. Don't forget, GR is calculation intensive.
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Thank you, thank you thank you
...may be old hat to you but stuff like this takes me a long ways forward in understanding stuff.
May I ask then to be specific..in respect to the prediction NASA made re the Pioneer..was their prediction based upon Newtonian or GR calculations.
alex