Re: Calculating the mass of the sun by an improved method

From	Poutnik <Poutnik4NNTP@gmail.com>
Newsgroups	sci.physics
Subject	Re: Calculating the mass of the sun by an improved method
Date	2016-01-13 10:34 +0100
Organization	Good company
Message-ID	<n755hv$9kl$1@dont-email.me> (permalink)
References	<e1498c1e-2776-4abd-b083-278686467d72@googlegroups.com> <n74un6$k4e$1@dont-email.me> <17741057-1935-48ec-8a91-eb1917ab1ce4@googlegroups.com>

Show all headers | View raw

On 01/13/2016 09:21 AM, Peter Riedt wrote:
> On Wednesday, January 13, 2016 at 3:37:47 PM UTC+8, Poutnik wrote:
>> Dne 13/01/2016 v 08:00 Peter Riedt napsal(a):
> 
>>> 
>>> The second step is to divide GM by the gravitational constant G
>>> which was derived by Cavendish in the laboratory in 1798: M =
>>> 1.327167630E+20 / 6.674E-11 = 1.9885640E+30.
>>> 
>> 
>> Why do you omit involving the error propagation math rules, 
>> concerning absolute/relative accuracies of used physical constants
>> and experimental data ?
>> 
> It is common practice to use the constant G with measured and
> observed values for objects in the solar system.
> 

But your have answered a different question.

Accuracy of constants and data inevitably affects
accuracy of all dependent calculated quantities.

If we have physical quantities with estimated mean values A, B, C
and a, b, c are their respective estimated standard error deviations*

then

if C = A + B or C = A - B then c = sqrt ( a^2 + b^2 )
if C = A . B or C = A / B then c = C . sqrt((a/A)^2 + (b/B)^2))

So if
A=100, a=3
B=200, b=4
then

for C = A + B  :  ( 100 +/- 3 ) + ( 200 +/-4 ) = 300 +/- 5
for C = A . B  :  ( 100 +/- 3 ). ( 200 +/-4 ) = 20000 +/- cca 720



* the same is applicable to confidential intervals that are propotional
to STD

-- 
Poutnik ( the Czech word for a wanderer )

Thread

Calculating the mass of the sun by an improved method Peter Riedt <riedt1@yahoo.co.uk> - 2016-01-12 23:00 -0800
  Re: Calculating the mass of the sun by an improved method Poutnik <poutnik4nntp@gmail.com> - 2016-01-13 08:37 +0100
    Re: Calculating the mass of the sun by an improved method Peter Riedt <riedt1@yahoo.co.uk> - 2016-01-13 00:21 -0800
      Re: Calculating the mass of the sun by an improved method Poutnik <Poutnik4NNTP@gmail.com> - 2016-01-13 10:34 +0100
        Re: Calculating the mass of the sun by an improved method Poutnik <Poutnik4NNTP@gmail.com> - 2016-01-13 11:20 +0100
          Re: Calculating the mass of the sun by an improved method Peter Riedt <riedt1@yahoo.co.uk> - 2016-01-13 15:11 -0800
            Re: Calculating the mass of the sun by an improved method Poutnik <poutnik4nntp@gmail.com> - 2016-01-14 07:10 +0100
  Re: Calculating the mass of the sun by an improved method Sylvia Else <sylvia@not.at.this.address> - 2016-01-14 11:54 +1100
    Re: Calculating the mass of the sun by an improved method R Kym Horsell <kym@kymhorsell.com> - 2016-01-14 02:33 +0000
    Re: Calculating the mass of the sun by an improved method Peter Riedt <riedt1@yahoo.co.uk> - 2016-01-13 18:46 -0800
      Re: Calculating the mass of the sun by an improved method R Kym Horsell <kym@kymhorsell.com> - 2016-01-14 02:53 +0000
        Re: Calculating the mass of the sun by an improved method R Kym Horsell <kym@kymhorsell.com> - 2016-01-14 10:51 +0000
          Re: Calculating the mass of the sun by an improved method "Ross A. Finlayson" <ross.finlayson@gmail.com> - 2016-01-17 22:39 -0800
      Re: Calculating the mass of the sun by an improved method Poutnik <poutnik4nntp@gmail.com> - 2016-01-14 07:19 +0100
      Re: Calculating the mass of the sun by an improved method Odd Bodkin <bodkinodd@gmail.com> - 2016-01-14 08:10 -0600
  Re: Calculating the mass of the sun by an improved method Poutnik <poutnik4nntp@gmail.com> - 2016-01-14 07:17 +0100
    Re: Calculating the mass of the sun by an improved method Poutnik <poutnik4nntp@gmail.com> - 2016-01-14 07:43 +0100
    Re: Calculating the mass of the sun by an improved method Peter Riedt <riedt1@yahoo.co.uk> - 2016-01-14 00:20 -0800
      Re: Calculating the mass of the sun by an improved method Poutnik <Poutnik4NNTP@gmail.com> - 2016-01-14 16:04 +0100
        Re: Calculating the mass of the sun by an improved method Peter Riedt <riedt1@yahoo.co.uk> - 2016-01-14 16:34 -0800
          Re: Calculating the mass of the sun by an improved method Poutnik <poutnik4nntp@gmail.com> - 2016-01-15 07:35 +0100
            Re: Calculating the mass of the sun by an improved method Poutnik <poutnik4nntp@gmail.com> - 2016-01-15 07:46 +0100
              Re: Calculating the mass of the sun by an improved method Peter Riedt <riedt1@yahoo.co.uk> - 2016-01-15 00:14 -0800
                Re: Calculating the mass of the sun by an improved method Poutnik <Poutnik4NNTP@gmail.com> - 2016-01-15 11:11 +0100
                Re: Calculating the mass of the sun by an improved method Peter Riedt <riedt1@yahoo.co.uk> - 2016-01-15 04:53 -0800
                Re: Calculating the mass of the sun by an improved method Odd Bodkin <bodkinodd@gmail.com> - 2016-01-15 11:17 -0600
                Re: Calculating the mass of the sun by an improved method Poutnik <poutnik4nntp@gmail.com> - 2016-01-15 21:15 +0100
                Re: Calculating the mass of the sun by an improved method Peter Riedt <riedt1@yahoo.co.uk> - 2016-01-15 15:43 -0800
                Re: Calculating the mass of the sun by an improved method Sam Wormley <swormley1@gmail.com> - 2016-01-15 18:25 -0600
                Re: Calculating the mass of the sun by an improved method Sam Wormley <swormley1@gmail.com> - 2016-01-15 19:22 -0600
                Re: Calculating the mass of the sun by an improved method Poutnik <poutnik4nntp@gmail.com> - 2016-01-16 07:56 +0100
                Re: Calculating the mass of the sun by an improved method Peter Riedt <riedt1@yahoo.co.uk> - 2016-01-16 19:41 -0800
                Re: Calculating the mass of the sun by an improved method benj <none@gmail.com> - 2016-01-16 23:15 -0500
                Re: Calculating the mass of the sun by an improved method jimp@specsol.spam.sux.com - 2016-01-17 06:03 +0000
                Re: Calculating the mass of the sun by an improved method Peter Riedt <riedt1@yahoo.co.uk> - 2016-01-17 00:06 -0800
                Re: Calculating the mass of the sun by an improved method Poutnik <poutnik4nntp@gmail.com> - 2016-01-17 10:28 +0100
                Re: Calculating the mass of the sun by an improved method Peter Riedt <riedt1@yahoo.co.uk> - 2016-01-17 10:43 -0800
                Re: Calculating the mass of the sun by an improved method Poutnik <poutnik4nntp@gmail.com> - 2016-01-17 19:51 +0100
                Re: Calculating the mass of the sun by an improved method Poutnik <poutnik4nntp@gmail.com> - 2016-01-17 19:54 +0100
                Re: Calculating the mass of the sun by an improved method Peter Riedt <riedt1@yahoo.co.uk> - 2016-01-17 18:32 -0800
                Re: Calculating the mass of the sun by an improved method Sam Wormley <swormley1@gmail.com> - 2016-01-17 20:40 -0600
                Re: Calculating the mass of the sun by an improved method Peter Riedt <riedt1@yahoo.co.uk> - 2016-01-17 22:10 -0800
                Re: Calculating the mass of the sun by an improved method Poutnik <poutnik4nntp@gmail.com> - 2016-01-18 08:06 +0100
                Re: Calculating the mass of the sun by an improved method john <johnsefton288@gmail.com> - 2016-01-18 04:37 -0800
                Re: Calculating the mass of the sun by an improved method Sam Wormley <swormley1@gmail.com> - 2016-01-18 08:05 -0600
                Re: Calculating the mass of the sun by an improved method Odd Bodkin <bodkinodd@gmail.com> - 2016-01-18 13:18 -0600
                Re: Calculating the mass of the sun by an improved method Sam Wormley <swormley1@gmail.com> - 2016-01-18 08:03 -0600
                Re: Calculating the mass of the sun by an improved method Peter Riedt <riedt1@yahoo.co.uk> - 2016-01-18 12:22 -0800
                Re: Calculating the mass of the sun by an improved method Poutnik <poutnik4nntp@gmail.com> - 2016-01-19 08:28 +0100
                Re: Calculating the mass of the sun by an improved method Odd Bodkin <bodkinodd@gmail.com> - 2016-01-19 09:26 -0600
                Re: Calculating the mass of the sun by an improved method Peter Riedt <riedt1@yahoo.co.uk> - 2016-01-19 16:19 -0800
                Re: Calculating the mass of the sun by an improved method Odd Bodkin <bodkinodd@gmail.com> - 2016-01-19 18:39 -0600
                Re: Calculating the mass of the sun by an improved method Peter Riedt <riedt1@yahoo.co.uk> - 2016-01-19 17:18 -0800
                Re: Calculating the mass of the sun by an improved method Sam Wormley <swormley1@gmail.com> - 2016-01-19 20:23 -0600
                Re: Calculating the mass of the sun by an improved method Peter Riedt <riedt1@yahoo.co.uk> - 2016-01-19 19:33 -0800
                Re: Calculating the mass of the sun by an improved method Odd Bodkin <bodkinodd@gmail.com> - 2016-01-20 07:10 -0600
                Re: Calculating the mass of the sun by an improved method Peter Riedt <riedt1@yahoo.co.uk> - 2016-01-20 08:25 -0800
                Re: Calculating the mass of the sun by an improved method Sam Wormley <swormley1@gmail.com> - 2016-01-20 11:33 -0600
                Re: Calculating the mass of the sun by an improved method Peter Riedt <riedt1@yahoo.co.uk> - 2016-01-20 16:45 -0800
                Re: Calculating the mass of the sun by an improved method Sam Wormley <swormley1@gmail.com> - 2016-01-20 19:00 -0600
                Re: Calculating the mass of the sun by an improved method Peter Riedt <riedt1@yahoo.co.uk> - 2016-01-20 17:20 -0800
                Re: Calculating the mass of the sun by an improved method Odd Bodkin <bodkinodd@gmail.com> - 2016-01-21 08:18 -0600
                Re: Calculating the mass of the sun by an improved method Peter Riedt <riedt1@yahoo.co.uk> - 2016-01-21 09:20 -0800
                Re: Calculating the mass of the sun by an improved method Odd Bodkin <bodkinodd@gmail.com> - 2016-01-21 11:38 -0600
                Re: Calculating the mass of the sun by an improved method Odd Bodkin <bodkinodd@gmail.com> - 2016-01-21 11:44 -0600
                Re: Calculating the mass of the sun by an improved method Peter Riedt <riedt1@yahoo.co.uk> - 2016-01-21 16:58 -0800
                Re: Calculating the mass of the sun by an improved method pnalsing@gmail.com - 2016-01-21 17:40 -0800
                Re: Calculating the mass of the sun by an improved method Peter Riedt <riedt1@yahoo.co.uk> - 2016-01-21 20:11 -0800
                Re: Calculating the mass of the sun by an improved method Poutnik <poutnik4nntp@gmail.com> - 2016-01-22 09:06 +0100
                Re: Calculating the mass of the sun by an improved method Odd Bodkin <bodkinodd@gmail.com> - 2016-01-22 07:39 -0600
                Re: Calculating the mass of the sun by an improved method Peter Riedt <riedt1@yahoo.co.uk> - 2016-01-21 17:01 -0800
                Re: Calculating the mass of the sun by an improved method Odd Bodkin <bodkinodd@gmail.com> - 2016-01-22 07:38 -0600
                Re: Calculating the mass of the sun by an improved method benj <none@gmail.com> - 2016-01-21 20:36 -0500
                Re: Calculating the mass of the sun by an improved method Odd Bodkin <bodkinodd@gmail.com> - 2016-01-22 07:37 -0600
                Re: Calculating the mass of the sun by an improved method Lawrence Senreich <lawest@galaxyredeems.org> - 2016-01-22 13:44 +0000
                Re: Calculating the mass of the sun by an improved method Odd Bodkin <bodkinodd@gmail.com> - 2016-01-22 07:55 -0600
                Re: Calculating the mass of the sun by an improved method benj <none@gmail.com> - 2016-01-22 13:49 -0500
                Re: Calculating the mass of the sun by an improved method Odd Bodkin <bodkinodd@gmail.com> - 2016-01-23 12:02 -0600
                Re: Calculating the mass of the sun by an improved method Tom Roberts <tjroberts137@sbcglobal.net> - 2016-01-23 13:27 -0600
                Re: Calculating the mass of the sun by an improved method Maciej Woźniak <mlwozniak@wp.pl> - 2016-01-23 21:56 +0100
                Re: Calculating the mass of the sun by an improved method Odd Bodkin <bodkinodd@gmail.com> - 2016-01-23 12:02 -0600
                Re: Calculating the mass of the sun by an improved method Poutnik <poutnik4nntp@gmail.com> - 2016-01-22 20:46 +0100
                Re: Calculating the mass of the sun by an improved method Peter Riedt <riedt1@yahoo.co.uk> - 2016-01-22 16:09 -0800
                Re: Calculating the mass of the sun by an improved method Sam Wormley <swormley1@gmail.com> - 2016-01-22 18:21 -0600
                Re: Calculating the mass of the sun by an improved method Peter Riedt <riedt1@yahoo.co.uk> - 2016-01-22 17:45 -0800
                Re: Calculating the mass of the sun by an improved method Sam Wormley <swormley1@gmail.com> - 2016-01-22 22:30 -0600
                Re: Calculating the mass of the sun by an improved method Peter Riedt <riedt1@yahoo.co.uk> - 2016-01-22 23:13 -0800
                Re: Calculating the mass of the sun by an improved method Sam Wormley <swormley1@gmail.com> - 2016-01-23 08:32 -0600
                Re: Calculating the mass of the sun by an improved method Odd Bodkin <bodkinodd@gmail.com> - 2016-01-23 12:08 -0600
                Re: Calculating the mass of the sun by an improved method Odd Bodkin <bodkinodd@gmail.com> - 2016-01-20 11:56 -0600
                Re: Calculating the mass of the sun by an improved method Poutnik <poutnik4nntp@gmail.com> - 2016-01-18 08:04 +0100
                Re: Calculating the mass of the sun by an improved method jimp@specsol.spam.sux.com - 2016-01-17 18:56 +0000
                Re: Calculating the mass of the sun by an improved method Poutnik <poutnik4nntp@gmail.com> - 2016-01-17 10:26 +0100
          Re: Calculating the mass of the sun by an improved method Odd Bodkin <bodkinodd@gmail.com> - 2016-01-15 10:49 -0600
  Re: Calculating the mass of the sun by an improved method Sam Wormley <swormley1@gmail.com> - 2016-01-14 18:58 -0600
    Re: Calculating the mass of the sun by an improved method Peter Riedt <riedt1@yahoo.co.uk> - 2016-01-14 19:53 -0800

csiph-web