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Groups > sci.physics > #610594 > unrolled thread
| Started by | Peter Riedt <riedt1@yahoo.co.uk> |
|---|---|
| First post | 2016-12-28 06:13 -0800 |
| Last post | 2017-01-06 07:09 -0600 |
| Articles | 20 on this page of 38 — 9 participants |
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Calculating G Peter Riedt <riedt1@yahoo.co.uk> - 2016-12-28 06:13 -0800
Re: Calculating G Poutnik <poutnik4nntp@gmail.com> - 2016-12-28 15:40 +0100
Re: Calculating G Poutnik <poutnik4nntp@gmail.com> - 2016-12-28 15:41 +0100
Re: Calculating G Peter Riedt <riedt1@yahoo.co.uk> - 2016-12-28 22:10 -0800
Re: Calculating G "hanson" <hanson@quick.net> - 2016-12-28 22:29 -0800
Re: Calculating G Poutnik <poutnik4nntp@gmail.com> - 2016-12-29 08:07 +0100
Re: Calculating G Peter Riedt <riedt1@yahoo.co.uk> - 2016-12-29 16:53 -0800
Re: Calculating G Alan Folmsbee <omnilobe@gmail.com> - 2016-12-28 09:27 -0800
Re: Calculating G Sylvia Else <sylvia@not.at.this.address> - 2016-12-29 17:21 +1100
Re: Calculating G Peter Riedt <riedt1@yahoo.co.uk> - 2016-12-29 04:21 -0800
Re: Calculating G Wally W. <ww84wa@aim.com> - 2016-12-29 09:11 -0500
Re: Calculating G "hanson" <hanson@quick.net> - 2016-12-29 06:34 -0800
Re: Calculating G noTthaTguY <abu.kuanysh05@gmail.com> - 2016-12-29 15:40 -0800
Re: Calculating G Peter Riedt <riedt1@yahoo.co.uk> - 2016-12-29 16:52 -0800
Re: Calculating G Peter Riedt <riedt1@yahoo.co.uk> - 2016-12-29 16:59 -0800
Re: Calculating G Odd Bodkin <bodkinodd@gmail.com> - 2017-01-03 12:19 -0600
Re: Calculating G noTthaTguY <abu.kuanysh05@gmail.com> - 2017-01-03 12:43 -0800
Re: Calculating G Sylvia Else <sylvia@not.at.this.address> - 2016-12-30 13:22 +1100
Re: Calculating G Peter Riedt <riedt1@yahoo.co.uk> - 2016-12-30 01:11 -0800
Re: Calculating G Sylvia Else <sylvia@not.at.this.address> - 2016-12-30 21:43 +1100
Re: Calculating G "hanson" <hanson@quick.net> - 2016-12-30 06:48 -0800
Re: Calculating G Peter Riedt <riedt1@yahoo.co.uk> - 2016-12-30 14:43 -0800
Re: Calculating G Sylvia Else <sylvia@not.at.this.address> - 2016-12-31 11:35 +1100
Re: Calculating G Peter Riedt <riedt1@yahoo.co.uk> - 2016-12-30 17:06 -0800
Re: Calculating G Sylvia Else <sylvia@not.at.this.address> - 2016-12-31 12:40 +1100
Re: Calculating G Peter Riedt <riedt1@yahoo.co.uk> - 2016-12-30 23:22 -0800
Re: Calculating G Sylvia Else <sylvia@not.at.this.address> - 2016-12-31 20:28 +1100
Re: Calculating G "reber g=emc^2" <herbertglazier0@gmail.com> - 2016-12-31 11:07 -0800
Re: Calculating G "hanson" <hanson@quick.net> - 2016-12-31 11:16 -0800
Re: Calculating G "reber g=emc^2" <herbertglazier0@gmail.com> - 2016-12-31 13:22 -0800
Re: Calculating G "hanson" <hanson@quick.net> - 2016-12-31 15:36 -0800
Re: Calculating G Sylvia Else <sylvia@not.at.this.address> - 2017-01-01 11:49 +1100
Re: Calculating G Odd Bodkin <bodkinodd@gmail.com> - 2017-01-03 15:09 -0600
Re: Calculating G Peter Riedt <riedt1@yahoo.co.uk> - 2017-01-03 16:22 -0800
Re: Calculating G noTthaTguY <abu.kuanysh05@gmail.com> - 2017-01-03 16:57 -0800
Re: Calculating G Odd Bodkin <bodkinodd@gmail.com> - 2017-01-04 10:22 -0600
Re: Calculating G Peter Riedt <riedt1@yahoo.co.uk> - 2017-01-05 16:02 -0800
Re: Calculating G Odd Bodkin <bodkinodd@gmail.com> - 2017-01-06 07:09 -0600
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| From | Peter Riedt <riedt1@yahoo.co.uk> |
|---|---|
| Date | 2016-12-28 06:13 -0800 |
| Subject | Calculating G |
| Message-ID | <adbb9ff0-c60d-49d8-bb55-b114c60dc8c0@googlegroups.com> |
Calculating G The constant G was anticipated by Newton but first accurately determined in the laboratory by Henry Cavendish in 1798. It has the value G=6.674E-11m3kg−1s−2 (cubic meters per kilogram second squared). G can be derived from elements of a star by the formula G=gstar*rstar^2/Mstar gstar rstar Mstar G Sun 273.97 696,000,000 1.99E+30 6.674E-11 ACa 200.18 853,992,000 2.19E+30 6.674E-11 ACb 332.10 602,040,000 1.80E+30 6.674E-11 AC c 1695.00 98,136,000 2.45E+29 6.674E-11 gstar = surface acceleration in m/sec rstar = radius in m Mstar = mass in kg G can also be derived from g, radius and mass of the planets by the formula G=gpl*rpl^2/mpl gpl rpl(m) mpl G MER 3.71 2,439,000 3.30E+23 6.674E-11 VEN 8.87 6,051,602 4.87E+24 6.674E-11 EAR 9.80 6,378,621 5.97E+24 6.674E-11 MAR 3.71 3,397,360 6.42E+23 6.674E-11 JUP 24.79 71,499,344 1.90E+27 6.674E-11 SAT 10.44 60,273,223 5.68E+26 6.674E-11 URA 8.87 25,556,472 8.68E+25 6.674E-11 NEP 11.15 24,765,365 1.02E+26 6.674E-11 PLU 0.62 1,158,753 1.25E+22 6.674E-11 gpl = surface acceleration of a planet rpl = radius of a planet mpl = mass of a planet The calculated G numbers of the Sun, Alpha Centauri A, B and C and nine planets are identical with the Codata value of G=6.674E-11.
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| From | Poutnik <poutnik4nntp@gmail.com> |
|---|---|
| Date | 2016-12-28 15:40 +0100 |
| Message-ID | <o40iq7$h2g$1@dont-email.me> |
| In reply to | #610594 |
Dne 28/12/2016 v 15:13 Peter Riedt napsal(a): > Calculating G > > The constant G was anticipated by Newton but first accurately determined in the laboratory by Henry Cavendish in 1798. It has the value G=6.674E-11m3kg−1s−2 (cubic meters per kilogram second squared). > > G can be derived from elements of a star by the formula G=gstar*rstar^2/Mstar > It is the opposite. The star masses are derived from our knowledge of G value. Calculating G from the star masses would be a circular calculation. -- Poutnik ( The Pilgrim, Der Wanderer )
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| From | Poutnik <poutnik4nntp@gmail.com> |
|---|---|
| Date | 2016-12-28 15:41 +0100 |
| Message-ID | <o40isp$h2g$2@dont-email.me> |
| In reply to | #610595 |
Dne 28/12/2016 v 15:40 Poutnik napsal(a): > Dne 28/12/2016 v 15:13 Peter Riedt napsal(a): >> Calculating G >> >> The constant G was anticipated by Newton but first accurately determined in the laboratory by Henry Cavendish in 1798. It has the value G=6.674E-11m3kg−1s−2 (cubic meters per kilogram second squared). >> >> G can be derived from elements of a star by the formula G=gstar*rstar^2/Mstar >> > It is the opposite. > > The star masses are derived from our knowledge of G value. > Calculating G from the star masses would be a circular calculation. > P.S.: Note also we know the G value with much better accuracy that we know the star masses. -- Poutnik ( The Pilgrim, Der Wanderer ) A wise man guards words he says, as they say about him more, than he says about the subject.
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| From | Peter Riedt <riedt1@yahoo.co.uk> |
|---|---|
| Date | 2016-12-28 22:10 -0800 |
| Message-ID | <2eae81f1-ecae-4e2d-a713-aa489eb2bd03@googlegroups.com> |
| In reply to | #610595 |
On Wednesday, December 28, 2016 at 10:40:37 PM UTC+8, Poutnik Fornntp wrote: > Dne 28/12/2016 v 15:13 Peter Riedt napsal(a): > > Calculating G > > > > The constant G was anticipated by Newton but first accurately determined in the laboratory by Henry Cavendish in 1798. It has the value G=6.674E-11m3kg−1s−2 (cubic meters per kilogram second squared). > > > > G can be derived from elements of a star by the formula G=gstar*rstar^2/Mstar > > > It is the opposite. > > The star masses are derived from our knowledge of G value. > Calculating G from the star masses would be a circular calculation. > > -- > Poutnik ( The Pilgrim, Der Wanderer ) What is the equation to calculate the mass of a star or planet using G?
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| From | "hanson" <hanson@quick.net> |
|---|---|
| Date | 2016-12-28 22:29 -0800 |
| Message-ID | <o42adp$lv4$1@dont-email.me> |
| In reply to | #610667 |
"Peter Riedt" <riedt1@yahoo.co.uk> who wants to get onto "reber g=emc^2" <herbertglazier0@gmail.com> Glazier's List of Bert-Turd eaters, excitedly asked: What is the equation to calculate the mass of a star or planet using G? > reber is an honest human being as many of the quotes imply. > hanson wrote: So, Riedt, use reber's G=EMC^2, or ... are you only as honest as Glazier is.
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| From | Poutnik <poutnik4nntp@gmail.com> |
|---|---|
| Date | 2016-12-29 08:07 +0100 |
| Message-ID | <o42cju$qpb$1@dont-email.me> |
| In reply to | #610667 |
Dne 29/12/2016 v 07:10 Peter Riedt napsal(a): > > What is the equation to calculate the mass of a star or planet using G? It is much more beneficial for you to search and study materials on your own. This way you will understand equations you would learn. -- Poutnik ( The Pilgrim, Der Wanderer ) A wise man guards words he says, as they say about him more, than he says about the subject.
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| From | Peter Riedt <riedt1@yahoo.co.uk> |
|---|---|
| Date | 2016-12-29 16:53 -0800 |
| Message-ID | <01d3305b-b272-443c-812f-c831b75062d2@googlegroups.com> |
| In reply to | #610681 |
On Thursday, December 29, 2016 at 3:07:06 PM UTC+8, Poutnik Fornntp wrote: > Dne 29/12/2016 v 07:10 Peter Riedt napsal(a): > > > > What is the equation to calculate the mass of a star or planet using G? > > It is much more beneficial for you > to search and study materials on your own. > This way you will understand equations you would learn. > > > -- > Poutnik ( The Pilgrim, Der Wanderer ) > > A wise man guards words he says, > as they say about him more, > than he says about the subject. No problem.
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| From | Alan Folmsbee <omnilobe@gmail.com> |
|---|---|
| Date | 2016-12-28 09:27 -0800 |
| Message-ID | <07db64a1-f781-4144-95c1-423e2057e59b@googlegroups.com> |
| In reply to | #610594 |
G is from matter G = V/(2 pi C m) V is proton volume, m is proton mass C is 5.131534 second^2
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| From | Sylvia Else <sylvia@not.at.this.address> |
|---|---|
| Date | 2016-12-29 17:21 +1100 |
| Message-ID | <ecjobeFn4dqU1@mid.individual.net> |
| In reply to | #610594 |
On 29/12/2016 1:13 AM, Peter Riedt wrote: > Calculating G > > The constant G was anticipated by Newton but first accurately determined in the laboratory by Henry Cavendish in 1798. It has the value G=6.674E-11m3kg−1s−2 (cubic meters per kilogram second squared). > > G can be derived from elements of a star by the formula G=gstar*rstar^2/Mstar > > gstar rstar Mstar G > Sun 273.97 696,000,000 1.99E+30 6.674E-11 > ACa 200.18 853,992,000 2.19E+30 6.674E-11 > ACb 332.10 602,040,000 1.80E+30 6.674E-11 > AC c 1695.00 98,136,000 2.45E+29 6.674E-11 > > gstar = surface acceleration in m/sec > rstar = radius in m > Mstar = mass in kg How are you going to get the mass and surface acceleration of the star? Sylvia.
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| From | Peter Riedt <riedt1@yahoo.co.uk> |
|---|---|
| Date | 2016-12-29 04:21 -0800 |
| Message-ID | <fce81be3-6fca-46cb-8418-c11f5855e2f6@googlegroups.com> |
| In reply to | #610672 |
On Thursday, December 29, 2016 at 2:21:38 PM UTC+8, Sylvia Else wrote: > On 29/12/2016 1:13 AM, Peter Riedt wrote: > > Calculating G > > > > The constant G was anticipated by Newton but first accurately determined in the laboratory by Henry Cavendish in 1798. It has the value G=6.674E-11m3kg−1s−2 (cubic meters per kilogram second squared). > > > > G can be derived from elements of a star by the formula G=gstar*rstar^2/Mstar > > > > gstar rstar Mstar G > > Sun 273.97 696,000,000 1.99E+30 6.674E-11 > > ACa 200.18 853,992,000 2.19E+30 6.674E-11 > > ACb 332.10 602,040,000 1.80E+30 6.674E-11 > > AC c 1695.00 98,136,000 2.45E+29 6.674E-11 > > > > gstar = surface acceleration in m/sec > > rstar = radius in m > > Mstar = mass in kg > > How are you going to get the mass and surface acceleration of the star? > > Sylvia. I got the mass of the sun and Alpha Centauri A, B, C from sources available on the Internet: Mstar Sun 1.98855E+30 ACa 2.18741E+30 (1.1 mass of the sun) ACb 1.80361E+30 (.907 mass of the sun) ACc 2.44592E+29 (.123 mass of the sun) I found the suggested surface acceleration of ACa (log g = 4.30), ACb (log g = 4.37) and ACc (log g = 5.20) not accurate. Recalculating the g values of the three AC stars with a formula of my own I was able to produce four values of G all consistent with Codata (6.674E-11): g of Sun=273.35m/sec, ACa=200.18m/sec, ACb=332.10m/sec, ACc=1695.00m/sec.
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| From | Wally W. <ww84wa@aim.com> |
|---|---|
| Date | 2016-12-29 09:11 -0500 |
| Message-ID | <i46a6c55fo8kqvvqof33nmaq88bsllf83a@4ax.com> |
| In reply to | #610729 |
On Thu, 29 Dec 2016 04:21:54 -0800 (PST), Peter Riedt wrote: >On Thursday, December 29, 2016 at 2:21:38 PM UTC+8, Sylvia Else wrote: >> On 29/12/2016 1:13 AM, Peter Riedt wrote: >> > Calculating G >> > >> > The constant G was anticipated by Newton but first accurately determined in the laboratory by Henry Cavendish in 1798. It has the value G=6.674E-11m3kg?1s?2 (cubic meters per kilogram second squared). >> > >> > G can be derived from elements of a star by the formula G=gstar*rstar^2/Mstar >> > >> > gstar rstar Mstar G >> > Sun 273.97 696,000,000 1.99E+30 6.674E-11 >> > ACa 200.18 853,992,000 2.19E+30 6.674E-11 >> > ACb 332.10 602,040,000 1.80E+30 6.674E-11 >> > AC c 1695.00 98,136,000 2.45E+29 6.674E-11 >> > >> > gstar = surface acceleration in m/sec >> > rstar = radius in m >> > Mstar = mass in kg >> >> How are you going to get the mass and surface acceleration of the star? >> >> Sylvia. > >I got the mass of the sun and Alpha Centauri A, B, C from sources available on the Internet: I got G from the internet: https://en.wikipedia.org/wiki/Gravitational_constant Its value is approximately 6.674×10-11 N·m2/kg2. No calculations required. > Mstar >Sun 1.98855E+30 >ACa 2.18741E+30 (1.1 mass of the sun) >ACb 1.80361E+30 (.907 mass of the sun) >ACc 2.44592E+29 (.123 mass of the sun) > >I found the suggested surface acceleration of ACa (log g = 4.30), ACb (log g = 4.37) and ACc (log g = 5.20) not accurate. Recalculating the g values of the three AC stars with a formula of my own I was able to produce four values of G all consistent with Codata (6.674E-11): g of Sun=273.35m/sec, ACa=200.18m/sec, ACb=332.10m/sec, ACc=1695.00m/sec.
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| From | "hanson" <hanson@quick.net> |
|---|---|
| Date | 2016-12-29 06:34 -0800 |
| Message-ID | <o436s0$dga$1@dont-email.me> |
| In reply to | #610733 |
"Wally W." <ww84wa@aim.com> wrote: > Peter Riedt wrote: >>> > Calculating G >>> > gstar = surface acceleration in m/sec >>> Sylvia wrote. >>> How are you going to get the mass and surface acceleration of the star? >>> >> Peter Riedt wrote: >> I got the mass of the sun and Alpha Centauri A, B, C >> from sources available on the Internet: > "Wally W." wrote: > I got G from the internet: > https://en.wikipedia.org/wiki/Gravitational_constant > Its value is approximately 6.674×10-11 N·m2/kg2. > No calculations required. > hanson wrote: Yeah, yeah!... you gotta love Peter's "acceleration in m/sec" while for other folks, for centuries, it was "acceleration in m/sec^2" IOW, a second here and a second there, and pretty soon you'll arrive at Peter's new, novel & post-modern physics.
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| From | noTthaTguY <abu.kuanysh05@gmail.com> |
|---|---|
| Date | 2016-12-29 15:40 -0800 |
| Message-ID | <97181edc-4243-4dcf-83ec-86ce8ff5eff9@googlegroups.com> |
| In reply to | #610734 |
got to do that, yeah > Yeah, yeah!... you gotta love Peter's "acceleration in m/sec" > while for other folks, for centuries, it was "acceleration in m/sec^2" > IOW, a second here and a second there, and pretty soon > you'll arrive at Peter's new, novel & post-modern physics.
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| From | Peter Riedt <riedt1@yahoo.co.uk> |
|---|---|
| Date | 2016-12-29 16:52 -0800 |
| Message-ID | <37cc44f5-0ed7-491c-bb59-ee66be1d05ce@googlegroups.com> |
| In reply to | #610734 |
On Thursday, December 29, 2016 at 10:35:09 PM UTC+8, hanson wrote: > "Wally W." <ww84wa@aim.com> wrote: > > > Peter Riedt wrote: > >>> > Calculating G > >>> > gstar = surface acceleration in m/sec > >>> > Sylvia wrote. > >>> How are you going to get the mass and surface acceleration of the star? > >>> >> > Peter Riedt wrote: > >> I got the mass of the sun and Alpha Centauri A, B, C > >> from sources available on the Internet: > > > "Wally W." wrote: > > I got G from the internet: > > https://en.wikipedia.org/wiki/Gravitational_constant > > Its value is approximately 6.674×10-11 N·m2/kg2. > > No calculations required. > > > hanson wrote: > Yeah, yeah!... you gotta love Peter's "acceleration in m/sec" > while for other folks, for centuries, it was "acceleration in m/sec^2" > IOW, a second here and a second there, and pretty soon > you'll arrive at Peter's new, novel & post-modern physics. Thank you for pointing out my omissision.
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| From | Peter Riedt <riedt1@yahoo.co.uk> |
|---|---|
| Date | 2016-12-29 16:59 -0800 |
| Message-ID | <96ed759a-f10d-414e-8697-a0ab443d430b@googlegroups.com> |
| In reply to | #610733 |
On Thursday, December 29, 2016 at 10:11:31 PM UTC+8, Wally W. wrote: > On Thu, 29 Dec 2016 04:21:54 -0800 (PST), Peter Riedt wrote: > > >On Thursday, December 29, 2016 at 2:21:38 PM UTC+8, Sylvia Else wrote: > >> On 29/12/2016 1:13 AM, Peter Riedt wrote: > >> > Calculating G > >> > > >> > The constant G was anticipated by Newton but first accurately determined in the laboratory by Henry Cavendish in 1798. It has the value G=6.674E-11m3kg?1s?2 (cubic meters per kilogram second squared). > >> > > >> > G can be derived from elements of a star by the formula G=gstar*rstar^2/Mstar > >> > > >> > gstar rstar Mstar G > >> > Sun 273.97 696,000,000 1.99E+30 6.674E-11 > >> > ACa 200.18 853,992,000 2.19E+30 6.674E-11 > >> > ACb 332.10 602,040,000 1.80E+30 6.674E-11 > >> > AC c 1695.00 98,136,000 2.45E+29 6.674E-11 > >> > > >> > gstar = surface acceleration in m/sec > >> > rstar = radius in m > >> > Mstar = mass in kg > >> > >> How are you going to get the mass and surface acceleration of the star? > >> > >> Sylvia. > > > >I got the mass of the sun and Alpha Centauri A, B, C from sources available on the Internet: > > I got G from the internet: > > https://en.wikipedia.org/wiki/Gravitational_constant > Its value is approximately 6.674×10-11 N·m2/kg2. > > No calculations required. > > > > > Mstar > >Sun 1.98855E+30 > >ACa 2.18741E+30 (1.1 mass of the sun) > >ACb 1.80361E+30 (.907 mass of the sun) > >ACc 2.44592E+29 (.123 mass of the sun) > > > >I found the suggested surface acceleration of ACa (log g = 4.30), ACb (log g = 4.37) and ACc (log g = 5.20) not accurate. Recalculating the g values of the three AC stars with a formula of my own I was able to produce four values of G all consistent with Codata (6.674E-11): g of Sun=273.35m/sec, ACa=200.18m/sec, ACb=332.10m/sec, ACc=1695.00m/sec. I did not calculate G to produce G. I used a method to prove that G also applies to other stars. I have 10 different equations to calculate G. They do prove the relationships between elements of free fall orbits in the solar system and confirm the consistency of the system.
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| From | Odd Bodkin <bodkinodd@gmail.com> |
|---|---|
| Date | 2017-01-03 12:19 -0600 |
| Message-ID | <o4gpui$u1k$1@gioia.aioe.org> |
| In reply to | #610817 |
On 12/29/2016 6:59 PM, Peter Riedt wrote: > I did not calculate G to produce G. I used a method to prove that G also > applies to other stars. I have 10 different equations to calculate G. They > do prove the relationships between elements of free fall orbits in the solar > system and confirm the consistency of the system. Just a few comments. - Just a little while ago you were claiming that G varies from star system to star system, while Newton claimed that G was universal. Now you are claiming that G's value is the same for other stars, and you are pretending this is something new. - The value of G is determined from experimental data, whether that data is obtained with satellites orbiting the earth, or from planets orbiting our sun, or from stars orbiting the galactic center, or whatever gravitational system you care to choose. This is why G is considered universal. This is not new (except maybe to you) and has been known for literally centuries. -- Odd Bodkin --- maker of fine toys, tools, tables
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| From | noTthaTguY <abu.kuanysh05@gmail.com> |
|---|---|
| Date | 2017-01-03 12:43 -0800 |
| Message-ID | <3e10d288-48a1-464c-8dc9-4a8c873a0825@googlegroups.com> |
| In reply to | #611498 |
I'd also like a fine toy ,,, bit late, but > - The value of G is determined from experimental data, whether that data > is obtained with satellites orbiting the earth, or from planets orbiting > our sun, or from stars orbiting the galactic center, or whatever > gravitational system you care to choose. This is why G is considered > universal. This is not new (except maybe to you) and has been known for > literally centuries. > > > -- > Odd Bodkin --- maker of fine toys, tools, tables
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| From | Sylvia Else <sylvia@not.at.this.address> |
|---|---|
| Date | 2016-12-30 13:22 +1100 |
| Message-ID | <eclunfF9711U2@mid.individual.net> |
| In reply to | #610729 |
On 29/12/2016 11:21 PM, Peter Riedt wrote: > On Thursday, December 29, 2016 at 2:21:38 PM UTC+8, Sylvia Else > wrote: >> On 29/12/2016 1:13 AM, Peter Riedt wrote: >>> Calculating G >>> >>> The constant G was anticipated by Newton but first accurately >>> determined in the laboratory by Henry Cavendish in 1798. It has >>> the value G=6.674E-11m3kg−1s−2 (cubic meters per kilogram second >>> squared). >>> >>> G can be derived from elements of a star by the formula >>> G=gstar*rstar^2/Mstar >>> >>> gstar rstar Mstar G Sun 273.97 696,000,000 1.99E+30 >>> 6.674E-11 ACa 200.18 853,992,000 2.19E+30 6.674E-11 ACb 332.10 >>> 602,040,000 1.80E+30 6.674E-11 AC c 1695.00 98,136,000 >>> 2.45E+29 6.674E-11 >>> >>> gstar = surface acceleration in m/sec rstar = radius in m Mstar = >>> mass in kg >> >> How are you going to get the mass and surface acceleration of the >> star? >> >> Sylvia. > > I got the mass of the sun and Alpha Centauri A, B, C from sources > available on the Internet: Are you for real? How do you think they ended up on the Internet? Sylvia.
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| From | Peter Riedt <riedt1@yahoo.co.uk> |
|---|---|
| Date | 2016-12-30 01:11 -0800 |
| Message-ID | <359717ca-d507-47fe-8486-2fa8086b049f@googlegroups.com> |
| In reply to | #610828 |
On Friday, December 30, 2016 at 10:22:43 AM UTC+8, Sylvia Else wrote: > On 29/12/2016 11:21 PM, Peter Riedt wrote: > > On Thursday, December 29, 2016 at 2:21:38 PM UTC+8, Sylvia Else > > wrote: > >> On 29/12/2016 1:13 AM, Peter Riedt wrote: > >>> Calculating G > >>> > >>> The constant G was anticipated by Newton but first accurately > >>> determined in the laboratory by Henry Cavendish in 1798. It has > >>> the value G=6.674E-11m3kg−1s−2 (cubic meters per kilogram second > >>> squared). > >>> > >>> G can be derived from elements of a star by the formula > >>> G=gstar*rstar^2/Mstar > >>> > >>> gstar rstar Mstar G Sun 273.97 696,000,000 1.99E+30 > >>> 6.674E-11 ACa 200.18 853,992,000 2.19E+30 6.674E-11 ACb 332.10 > >>> 602,040,000 1.80E+30 6.674E-11 AC c 1695.00 98,136,000 > >>> 2.45E+29 6.674E-11 > >>> > >>> gstar = surface acceleration in m/sec rstar = radius in m Mstar = > >>> mass in kg > >> > >> How are you going to get the mass and surface acceleration of the > >> star? > >> > >> Sylvia. > > > > I got the mass of the sun and Alpha Centauri A, B, C from sources > > available on the Internet: > > Are you for real? How do you think they ended up on the Internet? > > Sylvia. What is your point?
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| From | Sylvia Else <sylvia@not.at.this.address> |
|---|---|
| Date | 2016-12-30 21:43 +1100 |
| Message-ID | <ecms2rFflm7U1@mid.individual.net> |
| In reply to | #610850 |
On 30/12/2016 8:11 PM, Peter Riedt wrote: > On Friday, December 30, 2016 at 10:22:43 AM UTC+8, Sylvia Else wrote: >> On 29/12/2016 11:21 PM, Peter Riedt wrote: >>> On Thursday, December 29, 2016 at 2:21:38 PM UTC+8, Sylvia Else >>> wrote: >>>> On 29/12/2016 1:13 AM, Peter Riedt wrote: >>>>> Calculating G >>>>> >>>>> The constant G was anticipated by Newton but first accurately >>>>> determined in the laboratory by Henry Cavendish in 1798. It has >>>>> the value G=6.674E-11m3kg−1s−2 (cubic meters per kilogram second >>>>> squared). >>>>> >>>>> G can be derived from elements of a star by the formula >>>>> G=gstar*rstar^2/Mstar >>>>> >>>>> gstar rstar Mstar G Sun 273.97 696,000,000 1.99E+30 >>>>> 6.674E-11 ACa 200.18 853,992,000 2.19E+30 6.674E-11 ACb 332.10 >>>>> 602,040,000 1.80E+30 6.674E-11 AC c 1695.00 98,136,000 >>>>> 2.45E+29 6.674E-11 >>>>> >>>>> gstar = surface acceleration in m/sec rstar = radius in m Mstar = >>>>> mass in kg >>>> >>>> How are you going to get the mass and surface acceleration of the >>>> star? >>>> >>>> Sylvia. >>> >>> I got the mass of the sun and Alpha Centauri A, B, C from sources >>> available on the Internet: >> >> Are you for real? How do you think they ended up on the Internet? >> >> Sylvia. > > What is your point? > The mass of the sun that's on the Internet was calculated by applying the measured value of G to the orbits of the planets. So calculating G using the mass of the sun obtained from the Internet is actually calculating G from G. The other masses are either derived similarly from orbital speeds, or are derived from brightness based on stellar physics. Surface accelerations are calculated from the mass and G and measured radius. As always, your attempts to calculate G are completely circular. There is no known way of calculating it, other than from the measured attraction between masses that are known accurately by means other than orbital mechanics. Sylvia.
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