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Groups > sci.physics > #568541
| Subject | Re: "The Heat Death of the Universe" is like evolution, but less popular. |
|---|---|
| Newsgroups | sci.physics |
| References | (6 earlier) <Jeff-Relf.Me@Apr.4{5.45P.Seattle.2016}> <ndvk03$74a$1@pcls7.std.com> <60dfbe2d-9f00-46a9-ac01-24f4d2152f22@googlegroups.com> <1bOdnd9tHps3mpjKnZ2dnUU7-audnZ2d@giganews.com> <cf719982-e1df-456f-807b-fe24c94b0865@googlegroups.com> |
| From | Sam Wormley <swormley1@gmail.com> |
| Date | 2016-04-07 08:05 -0500 |
| Message-ID | <S8mdnasfo9GsxpvKnZ2dnUU7-RudnZ2d@giganews.com> (permalink) |
On 4/6/16 10:23 PM, Peter Riedt wrote:
> Example: The solar system is a gravity sphere. It extends from the
> centre of the sun to the boundary of the solar gravity sphere. The
> boundary of the solar system is where the gravitational attraction of
> the sun finishes. On the other side of the boundary begins the
> gravitational attraction of neighbouring stars.
Perhaps a lumpy spherical distribution at any radius. The important
point is the gravitational attraction *does not* have a boundary.
Nor does Alpha Centauri, or any other star. Gravity is a long-range
interaction that extends out as far as light has had time to travel.
All of the mass/energy attracts all of the mass/energy in the
universe to a distance as far as light has had time to travel.
Ref: Hartle, "Gravity: An Introduction to Einstein's General
Relativity", Addison Wesley (2003)
"A few properties of the gravitational interaction that help explain
when gravity is important can already be seen from the gravitational
force law
F_grav = G m_1 m_2 / r_12^2
o Gravity is a universal interaction in Newtonian theory between all
mass, and, since E = mc^2, in relativistic gravity between all forms
of energy.
o Gravity is unscreened. There are no negative gravitational charges
to cancel positive ones, and therefore it is not possible to shield
(screen) the gravitational interaction. Gravity is always
attractive.
o Gravity is a long-range interaction. The Newtonian force law is a
1/r^2 interaction. There is no length scale that sets a range for
gravitational interactions as there is for the strong and weak
interactions.
o Gravity is the weakest of the four fundamental interactions acting
between individual elementary particles at accessible energy scales.
The ratio of the gravitational attraction to the electromagnetic
repulsion between two protons separated by a distance r is
F_grav G m_p^2 / r^2 G m_p^2
-------- = -------------------- = ------------- ~ 10^-36
F_elec e^2 / (4Ï€ e_0 r^2) (e^2/4Ï€ e_0)
where m_p is the mass of the proton and e is its charge.
These four facts explain a great deal about the role gravity plays in
physical phenomena. They explain, for example, why, although it is
the weakest force, gravity governs the organization of the universe
on the largest distance scales of astrophysics and cosmology. These
distance scales are far beyond the subatomic ranges of the strong and
the weak interactions. Electromagnetic interactions COULD be long
range were there any large-scale objects with net electric charge.
But the universe is electrically neutral, and electromagnetic forces
are so much stronger than gravitational forces that any large-scale
net charge is quickly neutralized. Gravity is left to govern the
structure of the universe on the largest scales.
--
sci.physics is an unmoderated newsgroup dedicated
to the discussion of physics, news from the physics
community, and physics-related social issues.
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Riedt's monocentric universe theory Peter Riedt <riedt1@yahoo.co.uk> - 2016-03-29 22:18 -0700
Re: Riedt's monocentric universe theory Poutnik <poutnik4nntp@gmail.com> - 2016-03-30 08:09 +0200
Re: Riedt's monocentric universe theory Peter Riedt <riedt1@yahoo.co.uk> - 2016-03-30 00:48 -0700
Re: Riedt's monocentric universe theory Poutnik <poutnik4nntp@gmail.com> - 2016-03-30 10:04 +0200
Re: Riedt's monocentric universe theory Mahipal <mahipal7638@gmail.com> - 2016-03-30 02:30 -0700
Re: Riedt's monocentric universe theory James McGinn <jimmcginn9@gmail.com> - 2016-03-30 07:08 -0700
Re: Riedt's monocentric universe theory benj <none@gmail.com> - 2016-03-30 10:54 -0400
Re: Riedt's monocentric universe theory Odd Bodkin <bodkinodd@gmail.com> - 2016-03-30 07:20 -0500
Re: Riedt's monocentric universe theory trudi.schwander@gmail.com - 2016-03-30 02:50 -0700
Re: Riedt's monocentric universe theory john <johnsefton288@gmail.com> - 2016-03-30 03:05 -0700
Re: Riedt's monocentric universe theory Poutnik <poutnik4nntp@gmail.com> - 2016-03-30 13:42 +0200
Re: Riedt's monocentric universe theory Poutnik <poutnik4nntp@gmail.com> - 2016-03-30 14:21 +0200
Re: Riedt's monocentric universe theory Odd Bodkin <bodkinodd@gmail.com> - 2016-03-30 07:21 -0500
Re: Riedt's monocentric universe theory Odd Bodkin <bodkinodd@gmail.com> - 2016-03-30 07:18 -0500
Re: Riedt's monocentric universe theory Peter Riedt <riedt1@yahoo.co.uk> - 2016-03-30 05:55 -0700
Re: Riedt's monocentric universe theory Odd Bodkin <bodkinodd@gmail.com> - 2016-03-30 08:27 -0500
Re: Riedt's monocentric universe theory Peter Riedt <riedt1@yahoo.co.uk> - 2016-03-30 17:40 -0700
Re: Riedt's monocentric universe theory Poutnik <poutnik4nntp@gmail.com> - 2016-03-31 08:09 +0200
Re: Riedt's monocentric universe theory Odd Bodkin <bodkinodd@gmail.com> - 2016-03-31 10:25 -0500
Re: Riedt's monocentric universe theory Poutnik <poutnik4nntp@gmail.com> - 2016-03-30 15:53 +0200
Re: Riedt's monocentric universe theory Peter Riedt <riedt1@yahoo.co.uk> - 2016-03-30 17:37 -0700
Re: Riedt's monocentric universe theory Poutnik <poutnik4nntp@gmail.com> - 2016-03-31 08:05 +0200
Re: Riedt's monocentric universe theory HVAC <mr.hvac@gmail.com> - 2016-04-02 06:02 -0700
Re: Riedt's monocentric universe theory benj <none@gmail.com> - 2016-04-02 12:12 -0400
Re: Riedt's monocentric universe theory Peter Riedt <riedt1@yahoo.co.uk> - 2016-04-02 16:24 -0700
Re: Riedt's monocentric universe theory Odd Bodkin <bodkinodd@gmail.com> - 2016-04-04 10:26 -0500
Re: Riedt's monocentric universe theory James McGinn <jimmcginn9@gmail.com> - 2016-03-30 07:11 -0700
Re: Riedt's monocentric universe theory Sam Wormley <swormley1@gmail.com> - 2016-03-30 08:09 -0500
Re: Riedt's monocentric universe theory "nuny@bid.nes" <Alien8752@gmail.com> - 2016-03-30 22:30 -0700
Re: Riedt's monocentric universe theory Peter Riedt <riedt1@yahoo.co.uk> - 2016-03-31 00:18 -0700
Re: Riedt's monocentric universe theory Poutnik <poutnik4nntp@gmail.com> - 2016-03-31 09:41 +0200
Re: Riedt's monocentric universe theory Odd Bodkin <bodkinodd@gmail.com> - 2016-03-31 11:35 -0500
Re: Riedt's monocentric universe theory Peter Riedt <riedt1@yahoo.co.uk> - 2016-03-31 21:11 -0700
Re: Riedt's monocentric universe theory Poutnik <poutnik4nntp@gmail.com> - 2016-04-01 08:02 +0200
Re: Riedt's monocentric universe theory Odd Bodkin <bodkinodd@gmail.com> - 2016-04-01 07:20 -0500
Re: Riedt's monocentric universe theory Sam Wormley <swormley1@gmail.com> - 2016-04-01 08:43 -0500
Re: Riedt's monocentric universe theory Peter Riedt <riedt1@yahoo.co.uk> - 2016-04-01 18:55 -0700
Re: Riedt's monocentric universe theory Sam Wormley <swormley1@gmail.com> - 2016-04-01 22:35 -0500
Re: Riedt's monocentric universe theory Peter Riedt <riedt1@yahoo.co.uk> - 2016-04-01 22:50 -0700
Re: Riedt's monocentric universe theory Sam Wormley <swormley1@gmail.com> - 2016-04-02 07:56 -0500
Re: Riedt's monocentric universe theory Peter Riedt <riedt1@yahoo.co.uk> - 2016-04-02 16:56 -0700
Re: Riedt's monocentric universe theory Sam Wormley <swormley1@gmail.com> - 2016-04-02 20:21 -0500
Re: Riedt's monocentric universe theory Peter Riedt <riedt1@yahoo.co.uk> - 2016-04-02 19:59 -0700
Re: Riedt's monocentric universe theory Sam Wormley <swormley1@gmail.com> - 2016-04-03 15:01 -0500
Re: Riedt's monocentric universe theory Peter Riedt <riedt1@yahoo.co.uk> - 2016-04-03 17:13 -0700
Re: Riedt's monocentric universe theory Sam Wormley <swormley1@gmail.com> - 2016-04-03 19:18 -0500
Re: Riedt's monocentric universe theory Peter Riedt <riedt1@yahoo.co.uk> - 2016-04-03 18:02 -0700
Re: Riedt's monocentric universe theory Sam Wormley <swormley1@gmail.com> - 2016-04-03 20:22 -0500
Re: Riedt's monocentric universe theory Peter Riedt <riedt1@yahoo.co.uk> - 2016-04-04 00:07 -0700
Re: Riedt's monocentric universe theory Sam Wormley <swormley1@gmail.com> - 2016-04-04 07:45 -0500
Re: Riedt's monocentric universe theory edprochak@gmail.com - 2016-04-04 11:59 -0700
Re: Riedt's monocentric universe theory Odd Bodkin <bodkinodd@gmail.com> - 2016-04-04 08:50 -0500
Re: Riedt's monocentric universe theory Peter Riedt <riedt1@yahoo.co.uk> - 2016-04-04 19:08 -0700
Re: Riedt's monocentric universe theory Sam Wormley <swormley1@gmail.com> - 2016-04-05 11:40 -0500
Re: Riedt's monocentric universe theory Odd Bodkin <bodkinodd@gmail.com> - 2016-04-05 17:10 -0500
Re: Riedt's monocentric universe theory edprochak@gmail.com - 2016-04-04 11:34 -0700
Re: SpaceTime is "eXergy" ( energy that can do work ). moroney@world.std.spaamtrap.com (Michael Moroney) - 2016-04-04 20:09 +0000
Re: Gravity/eXergy ( energy that can do work ) is dying off. moroney@world.std.spaamtrap.com (Michael Moroney) - 2016-04-04 23:29 +0000
Re: "The Heat Death of the Universe" is like evolution, but less popular. benj <none@gmail.com> - 2016-04-04 21:31 -0400
Re: "The Heat Death of the Universe" is like evolution, but less popular. moroney@world.std.spaamtrap.com (Michael Moroney) - 2016-04-05 05:55 +0000
Re: Even stars _must_ evaporate. benj <none@gmail.com> - 2016-04-05 10:03 -0400
Re: Even stars _must_ evaporate. moroney@world.std.spaamtrap.com (Michael Moroney) - 2016-04-05 16:15 +0000
Re: Hawking Radiation, Heat Death of the Universe. "Sir Gregory Hall, Esq." <greghall@yacht_master.fake> - 2016-04-05 16:26 -0400
Re: Hawking Radiation, Heat Death of the Universe. moroney@world.std.spaamtrap.com (Michael Moroney) - 2016-04-06 18:59 +0000
Eventually, everything evaporates away, including gravity. HVAC <mr.hvac@gmail.com> - 2016-04-06 16:59 -0700
Re: Eventually, everything evaporates away, including gravity. benj <none@gmail.com> - 2016-04-06 20:38 -0400
Re: Many organisms would consume you. "Sir Gregory Hall, Esq." <greghall@yacht_master.fake> - 2016-04-06 21:05 -0400
Many organisms would consume you. HVAC <mr.hvac@gmail.com> - 2016-04-07 06:35 -0700
Re: Many organisms would consume you. benj <none@gmail.com> - 2016-04-07 10:22 -0400
Many organisms would consume you. HVAC <mr.hvac@gmail.com> - 2016-04-07 13:00 -0700
Science doesn't cater to your foolish dreams. HVAC <mr.hvac@gmail.com> - 2016-04-07 13:16 -0700
Re: Science doesn't cater to your foolish dreams. benj <none@gmail.com> - 2016-04-07 21:18 -0400
Science doesn't cater to your foolish dreams. HVAC <mr.hvac@gmail.com> - 2016-04-08 06:57 -0700
Re: Science doesn't cater to your foolish dreams. benj <none@gmail.com> - 2016-04-08 14:31 -0400
Re: Eventually, everything evaporates away, including gravity. moroney@world.std.spaamtrap.com (Michael Moroney) - 2016-04-07 13:52 +0000
Re: Your pet theory of the universe. moroney@world.std.spaamtrap.com (Michael Moroney) - 2016-04-07 20:48 +0000
Re: It takes energy to separate objects. moroney@world.std.spaamtrap.com (Michael Moroney) - 2016-04-08 13:43 +0000
Re: "The Heat Death of the Universe" is like evolution, but less popular. Peter Riedt <riedt1@yahoo.co.uk> - 2016-04-05 18:57 -0700
Re: "The Heat Death of the Universe" is like evolution, but less popular. Sam Wormley <swormley1@gmail.com> - 2016-04-06 07:57 -0500
Re: "The Heat Death of the Universe" is like evolution, but less popular. benj <none@gmail.com> - 2016-04-06 10:25 -0400
Re: "The Heat Death of the Universe" is like evolution, but less popular. "hanson" <hanson@quick.net> - 2016-04-06 10:01 -0700
Re: "The Heat Death of the Universe" is like evolution, but less popular. Peter Riedt <riedt1@yahoo.co.uk> - 2016-04-06 20:23 -0700
Re: "The Heat Death of the Universe" is like evolution, but less popular. Sam Wormley <swormley1@gmail.com> - 2016-04-07 08:05 -0500
Re: "The Heat Death of the Universe" is like evolution, but less popular. Peter Riedt <riedt1@yahoo.co.uk> - 2016-04-07 18:01 -0700
Re: "The Heat Death of the Universe" is like evolution, but less popular. Sam Wormley <swormley1@gmail.com> - 2016-04-07 20:26 -0500
Re: "The Heat Death of the Universe" is like evolution, but less popular. Odd Bodkin <bodkinodd@gmail.com> - 2016-04-08 07:09 -0500
Re: "The Heat Death of the Universe" is like evolution, but less popular. Peter Riedt <riedt1@yahoo.co.uk> - 2016-04-08 06:32 -0700
Re: "The Heat Death of the Universe" is like evolution, but less popular. Odd Bodkin <bodkinodd@gmail.com> - 2016-04-08 09:16 -0500
Re: "The Heat Death of the Universe" is like evolution, but less popular. Odd Bodkin <bodkinodd@gmail.com> - 2016-04-07 08:32 -0500
Re: "The Heat Death of the Universe" is like evolution, but less popular. "nuny@bid.nes" <Alien8752@gmail.com> - 2016-04-10 19:23 -0700
Re: "The Heat Death of the Universe" is like evolution, but less popular. Peter Riedt <riedt1@yahoo.co.uk> - 2016-04-11 17:54 -0700
Re: "The Heat Death of the Universe" is like evolution, but less popular. Peter Riedt <riedt1@yahoo.co.uk> - 2016-04-11 21:00 -0700
Re: "The Heat Death of the Universe" is like evolution, but less popular. "nuny@bid.nes" <Alien8752@gmail.com> - 2016-04-12 00:02 -0700
Re: "The Heat Death of the Universe" is like evolution, but less popular. Peter Riedt <riedt1@yahoo.co.uk> - 2016-04-12 00:35 -0700
Re: Riedt's monocentric universe theory "nuny@bid.nes" <Alien8752@gmail.com> - 2016-03-31 22:12 -0700
Re: Riedt's monocentric universe theory Poutnik <poutnik4nntp@gmail.com> - 2016-04-01 08:28 +0200
Re: Riedt's monocentric universe theory Poutnik <poutnik4nntp@gmail.com> - 2016-04-01 08:35 +0200
Re: Riedt's monocentric universe theory Peter Riedt <riedt1@yahoo.co.uk> - 2016-04-01 19:03 -0700
Re: Riedt's monocentric universe theory Poutnik <poutnik4nntp@gmail.com> - 2016-04-03 09:19 +0200
Re: Riedt's monocentric universe theory Peter Riedt <riedt1@yahoo.co.uk> - 2016-04-03 00:40 -0700
Re: Riedt's monocentric universe theory Poutnik <poutnik4nntp@gmail.com> - 2016-04-01 08:40 +0200
Re: Riedt's monocentric universe theory Peter Riedt <riedt1@yahoo.co.uk> - 2016-04-01 03:25 -0700
Re: Riedt's monocentric universe theory Odd Bodkin <bodkinodd@gmail.com> - 2016-04-01 07:31 -0500
Re: Riedt's monocentric universe theory Peter Riedt <riedt1@yahoo.co.uk> - 2016-04-01 19:32 -0700
Re: Riedt's monocentric universe theory Odd Bodkin <bodkinodd@gmail.com> - 2016-04-04 11:07 -0500
Re: Riedt's monocentric universe theory Peter Riedt <riedt1@yahoo.co.uk> - 2016-04-04 19:02 -0700
Re: Riedt's monocentric universe theory Odd Bodkin <bodkinodd@gmail.com> - 2016-04-05 06:55 -0500
Re: Riedt's monocentric universe theory Peter Riedt <riedt1@yahoo.co.uk> - 2016-04-05 18:35 -0700
Re: Riedt's monocentric universe theory Odd Bodkin <bodkinodd@gmail.com> - 2016-04-06 07:18 -0500
Re: Riedt's monocentric universe theory Sam Wormley <swormley1@gmail.com> - 2016-04-06 08:01 -0500
Re: Riedt's monocentric universe theory HVAC <mr.hvac@gmail.com> - 2016-04-06 06:00 -0700
Re: Riedt's monocentric universe theory Peter Riedt <riedt1@yahoo.co.uk> - 2016-04-06 20:25 -0700
Re: Riedt's monocentric universe theory Sam Wormley <swormley1@gmail.com> - 2016-04-07 08:09 -0500
Re: Riedt's monocentric universe theory Peter Riedt <riedt1@yahoo.co.uk> - 2016-04-07 17:43 -0700
Re: Riedt's monocentric universe theory Sam Wormley <swormley1@gmail.com> - 2016-04-07 19:58 -0500
Re: Riedt's monocentric universe theory Sam Wormley <swormley1@gmail.com> - 2016-04-07 20:19 -0500
Re: Riedt's monocentric universe theory Peter Riedt <riedt1@yahoo.co.uk> - 2016-04-07 23:02 -0700
Re: Riedt's monocentric universe theory Odd Bodkin <bodkinodd@gmail.com> - 2016-04-08 07:18 -0500
Re: Riedt's monocentric universe theory Peter Riedt <riedt1@yahoo.co.uk> - 2016-04-08 12:09 -0700
Re: Riedt's monocentric universe theory Odd Bodkin <bodkinodd@gmail.com> - 2016-04-08 14:20 -0500
Re: Riedt's monocentric universe theory HVAC <mr.hvac@gmail.com> - 2016-04-08 12:26 -0700
Re: Riedt's monocentric universe theory benj <none@gmail.com> - 2016-04-08 23:26 -0400
Re: Riedt's monocentric universe theory Peter Riedt <riedt1@yahoo.co.uk> - 2016-04-08 13:06 -0700
Re: Riedt's monocentric universe theory Odd Bodkin <bodkinodd@gmail.com> - 2016-04-08 16:31 -0500
theoretically noTthaTguY <abu.kuanysh05@gmail.com> - 2016-04-09 22:03 -0700
Re: Riedt's monocentric universe theory Sam Wormley <swormley1@gmail.com> - 2016-04-08 14:46 -0500
Re: Riedt's monocentric universe theory Peter Riedt <riedt1@yahoo.co.uk> - 2016-04-08 13:07 -0700
Re: Riedt's monocentric universe theory Sam Wormley <swormley1@gmail.com> - 2016-04-08 16:28 -0500
Re: Riedt's monocentric universe theory Sam Wormley <swormley1@gmail.com> - 2016-04-08 16:31 -0500
Re: Riedt's monocentric universe theory Peter Riedt <riedt1@yahoo.co.uk> - 2016-04-08 19:28 -0700
Re: Riedt's monocentric universe theory Sam Wormley <swormley1@gmail.com> - 2016-04-08 10:26 -0500
Re: Riedt's monocentric universe theory edprochak@gmail.com - 2016-04-10 14:36 -0700
Re: Riedt's monocentric universe theory Peter Riedt <riedt1@yahoo.co.uk> - 2016-04-10 17:59 -0700
Re: Riedt's monocentric universe theory Sam Wormley <swormley1@gmail.com> - 2016-04-11 08:21 -0500
Re: Riedt's monocentric universe theory Peter Riedt <riedt1@yahoo.co.uk> - 2016-04-11 17:56 -0700
Re: Riedt's monocentric universe theory Sam Wormley <swormley1@gmail.com> - 2016-04-11 20:58 -0500
Re: Riedt's monocentric universe theory Peter Riedt <riedt1@yahoo.co.uk> - 2016-04-11 19:44 -0700
Re: Riedt's monocentric universe theory Odd Bodkin <bodkinodd@gmail.com> - 2016-04-12 08:09 -0500
Re: Riedt's monocentric universe theory Odd Bodkin <bodkinodd@gmail.com> - 2016-04-12 08:07 -0500
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