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Science Forum Index » Astronomy Forum » Why do earth not Fall on Sun?
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| Sam Wormley |
Posted: Sun Apr 27, 2008 10:53 pm |
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Mark Earnest wrote:
Quote: "Sam Wormley" <swormley1@mchsi.com> wrote in message
news:jdaRj.139437$yE1.67749@attbi_s21...
Mark Earnest wrote:
The Earth does not fall into the Sun because it is constantly
accelerating
at a right angle to the Sun.
Whoops! The force (gravity) is directed toward the sun and hence the
acceleration is directed toward the sun.
Whoops yourself. If the acceleration was all toward the Sun, the planet
would fall into the Sun, just as the OP perceives.
It is the right angel acceleration that keeps the planet from falling into
the Sun.
See: http://honolulu.hawaii.edu/distance/sci122/Programs/p16/p162.gif |
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| Mark Earnest |
Posted: Sun Apr 27, 2008 11:11 pm |
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Guest
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"Sam Wormley" <swormley1@mchsi.com> wrote in message
news:2TbRj.139551$yE1.94807@attbi_s21...
Quote: Mark Earnest wrote:
"Sam Wormley" <swormley1@mchsi.com> wrote in message
news:jdaRj.139437$yE1.67749@attbi_s21...
Mark Earnest wrote:
The Earth does not fall into the Sun because it is constantly
accelerating
at a right angle to the Sun.
Whoops! The force (gravity) is directed toward the sun and hence the
acceleration is directed toward the sun.
Whoops yourself. If the acceleration was all toward the Sun, the planet
would fall into the Sun, just as the OP perceives.
It is the right angel acceleration that keeps the planet from falling
into the Sun.
See: http://honolulu.hawaii.edu/distance/sci122/Programs/p16/p162.gif
That is fine, except it leaves out the acceleration perpendicular to the
acceleration
toward the star. |
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| Sam Wormley |
Posted: Sun Apr 27, 2008 11:23 pm |
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Guest
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Mark Earnest wrote:
Quote: "Sam Wormley" <swormley1@mchsi.com> wrote in message
news:2TbRj.139551$yE1.94807@attbi_s21...
Mark Earnest wrote:
"Sam Wormley" <swormley1@mchsi.com> wrote in message
news:jdaRj.139437$yE1.67749@attbi_s21...
Mark Earnest wrote:
The Earth does not fall into the Sun because it is constantly
accelerating
at a right angle to the Sun.
Whoops! The force (gravity) is directed toward the sun and hence the
acceleration is directed toward the sun.
Whoops yourself. If the acceleration was all toward the Sun, the planet
would fall into the Sun, just as the OP perceives.
It is the right angel acceleration that keeps the planet from falling
into the Sun.
See: http://honolulu.hawaii.edu/distance/sci122/Programs/p16/p162.gif
That is fine, except it leaves out the acceleration perpendicular to the
acceleration
toward the star.
Recommend you get yourself a freshman physics book and do
some self education. Best of luck. |
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| ah |
Posted: Sun Apr 27, 2008 11:58 pm |
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Guest
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Sanny wrote:
Quote: When Sun and Earth are attracting each other why do Earth not fall on
Sun.
The wire is attached at Arecibo.
Quote:
When we throw a big Stone in air It will Fall Back on Earth.
Simmilarly For Sun Earth is just a piece of Rock? Who do this big rock
Earth Fall onto the Sun Just like the Stones which we throw in air
just come back and hit the Earth?
Simmilarly why not the Moon fall on Earth by the Gravity attration?
Why are the planets revolving round the sun for so many years instead
of just falling onto the Sun?
When we visit Moon on a Rocket Our Rocket Just Falls on Surface of
moon So why these heavenly bodies not falling on Bigger one?
Bye
Sanny
Extreme Discussions at: http://www.getclub.com/Discussion.php
--
ah |
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| ah |
Posted: Mon Apr 28, 2008 12:01 am |
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Dirk Van de moortel wrote:
Quote: "Mike" <eleatis@yahoo.gr> wrote in message news:fbd8eed8-4558-4d16-8615-fad82ccb5386@m36g2000hse.googlegroups.com...
Yep,
we know who you are:
http://groups.google.com/group/sci.physics.relativity/msg/659ed80c392d6b67
Mike
Um, you really shouldn't be able to read my messages.
You killfiled me - 4 times - and "for good idiot", remember? ;-)
Silly Mike, the lying killfiler:
29-Jan-2006:
http://groups.google.com/group/sci.physics.relativity/msg/18246d2052b351eb
| You are now "plonked" for good idiot. Anyway, you contribute nothing in
| these ng's other than psychosis and stupidity. I stick with it now and
| you "stock" your merde some place else.
1-Sep-2005:
http://groups.google.com/group/sci.math/msg/1b0256e5a1ad48b0
| Gee, Cantor, Goedel, Peano and the others would be proud of you Dirt.
| Especially if they knew that besides that you also understand the
| square root.
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| Plonk
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| Mike
5-Feb-2005:
http://groups.google.com/group/sci.physics/msg/986fdd22eebc33b9
| You got nothing to say, proven fact. You spend your whole misearable
| days maintaining a site where you store your impotence and psychotic
| behavior.
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| I had enough with you schizo, a killfile will do it and then a clean of
| the Dirt you left around making pooppies all over the place.
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| Mike
25-Sep-2004:
http://groups.google.com/group/sci.physics/msg/e5cfae098ed3d0a1
| Hi Dirk, Are you still working on a definition of sqrt? You and Alex
| can make a nice team. He thinks there is no time so you got all the
| time in the world to think about sqrt.
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| Plonk Dirk
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| Mike
tsk tsk
Dirk Vdm
Fight!
--
ah |
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| ah |
Posted: Mon Apr 28, 2008 12:01 am |
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G=EMC^2 Glazier wrote:
Quote: Its less energy for the Earth to fall into the Oort belt,than for the
Sun's gravity to have it fALL IN TO IT. gO FIUGURE Bert
It's hot in there!
--
ah |
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| Mark Earnest |
Posted: Mon Apr 28, 2008 12:31 am |
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Guest
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"Sam Wormley" <swormley1@mchsi.com> wrote in message
news:IicRj.139584$yE1.99344@attbi_s21...
Quote: Mark Earnest wrote:
"Sam Wormley" <swormley1@mchsi.com> wrote in message
news:2TbRj.139551$yE1.94807@attbi_s21...
Mark Earnest wrote:
"Sam Wormley" <swormley1@mchsi.com> wrote in message
news:jdaRj.139437$yE1.67749@attbi_s21...
Mark Earnest wrote:
The Earth does not fall into the Sun because it is constantly
accelerating
at a right angle to the Sun.
Whoops! The force (gravity) is directed toward the sun and hence the
acceleration is directed toward the sun.
Whoops yourself. If the acceleration was all toward the Sun, the
planet would fall into the Sun, just as the OP perceives.
It is the right angel acceleration that keeps the planet from falling
into the Sun.
See: http://honolulu.hawaii.edu/distance/sci122/Programs/p16/p162.gif
That is fine, except it leaves out the acceleration perpendicular to the
acceleration
toward the star.
Recommend you get yourself a freshman physics book and do
some self education. Best of luck.
I've already taken that class and made an A. |
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| Meenken |
Posted: Mon Apr 28, 2008 12:56 am |
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Guest
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"Mike" <eleatis@yahoo.gr> schreef in bericht
news:30739a2b-cae7-492c-8a42-7fbf2c208d5c@c65g2000hsa.googlegroups.com...
On Apr 27, 5:26 am, "Meenken" <mdmeen...@hetnet.nl> wrote:
Quote: there are/were also some people like einstein ,
who say that mass dictates space how to curve, and space in his turn
dictates mass how to move,but what kind of bullshit that is ,I don't
know,but that cannot be true can it???
greetings marten
Actually Newtonian physics say something similar: mass dictates
gravitational force (upon another mass) and in turn, the gravitational
force dictates how mass moves by the reaction of that gravitational
mass (third law).
There is nothing wrong with both sttatements. They produce wonderful
models of gravitational effects although they do not explain why the
effects happen in the "chicken and egg" sense you you should not worry
about that.
what i said above was offcourse a joke,
but as far as newton and einstein are concerned,
I once read something, that newton one time said ,that is was for him hard
to comprehend ,
how is was possible ,that the earth could attract the moon over such a
distance,
and keep it in orbit,
and that he expected ,that some day there would come somebody in the future
to figure that one out,
and that man came a couple of 100 years later , and figured that one out,
that mass curves space and that curved space in his turn dictates mass how
to move,
I think newton would have liked it,because it is brilliant
and that changed our understanding how the world around us works,
though we don't know everything yet,
but is was really a big step forward ,
marten
Mike |
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| Guest |
Posted: Mon Apr 28, 2008 3:39 am |
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On Apr 28, 1:31 am, "Mark Earnest" <gmearn...@yahoo.com> wrote:
Quote: "Sam Wormley" <sworml...@mchsi.com> wrote in message
news:IicRj.139584$yE1.99344@attbi_s21...
Mark Earnest wrote:
"Sam Wormley" <sworml...@mchsi.com> wrote in message
news:2TbRj.139551$yE1.94807@attbi_s21...
Mark Earnest wrote:
"Sam Wormley" <sworml...@mchsi.com> wrote in message
news:jdaRj.139437$yE1.67749@attbi_s21...
Mark Earnest wrote:
The Earth does not fall into the Sun because it is constantly
accelerating
at a right angle to the Sun.
Whoops! The force (gravity) is directed toward the sun and hence the
acceleration is directed toward the sun.
Whoops yourself. If the acceleration was all toward the Sun, the
planet would fall into the Sun, just as the OP perceives.
It is the right angel acceleration that keeps the planet from falling
into the Sun.
See:http://honolulu.hawaii.edu/distance/sci122/Programs/p16/p162.gif
That is fine, except it leaves out the acceleration perpendicular to the
acceleration
toward the star.
Recommend you get yourself a freshman physics book and do
some self education. Best of luck.
I've already taken that class and made an A.- Hide quoted text -
- Show quoted text -
I believe Sam was referring to the fact that while there is a
*velocity* component in the direction tangent to the orbit, the
acceleration (change in velocity) is directed toward the center of the
star.
Spencer |
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| SolomonW |
Posted: Mon Apr 28, 2008 6:01 am |
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Guest
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In article <cb4e6dd5-32ed-4105-8a48-53066d3fcda5
@b1g2000hsg.googlegroups.com>, solon013@earthlink.net says...
Quote: On Apr 27, 11:25 am, SolomonW <Solom...@DONTBOTHER.com> wrote:
In article <5b19dda4-0956-4950-86a6-
75e6a367b...@r66g2000hsg.googlegroups.com>, solon...@earthlink.net
says...
On Apr 27, 3:53 am, Sanny <softta...@hotmail.com> wrote:
When Sun and Earth are attracting each other why do Earth not fall on
Sun.
When we throw a big Stone in air It will Fall Back on Earth.
Simmilarly For Sun Earth is just a piece of Rock? Who do this big rock
Earth Fall onto the Sun Just like the Stones which we throw in air
just come back and hit the Earth?
Simmilarly why not the Moon fall on Earth by the Gravity attration?
Why are the planets revolving round the sun for so many years instead
of just falling onto the Sun?
When we visit Moon on a Rocket Our Rocket Just Falls on Surface of
moon So why these heavenly bodies not falling on Bigger one?
Bye
Sanny
Extreme Discussions at:http://www.getclub.com/Discussion.php
This is a deep question. It goes right to the heart of why gravity
and space behave the way they do. As posted above, Newton and
Einstein have given us mathematical models of *how* gravity and space
behave but not *why*.
Agreed
The only answer that comes to mind is the
anthromorphic principle, which seems to me to be not quite satisfying..
How would an anthromorphic principle helps here?- Hide quoted text -
- Show quoted text -
From Wikipedia "In physics and cosmology, the anthropic principle
states that humans should take into account the constraints that human
existence as observers imposes on the sort of universe that could be
observed. In other words, the only universe we can see is one that
supports life. If it were a different type of universe, we would not
exist to see it."
Mmmmmmmmmmmmmmm
Check what anthromorphic means! |
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| G=EMC^2 Glazier |
Posted: Mon Apr 28, 2008 6:23 am |
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| The Earth is "side stepping" Bert |
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| John Jones |
Posted: Mon Apr 28, 2008 7:00 am |
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Joined: 26 Oct 2004
Posts: 4263
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Sanny wrote:
Quote: When Sun and Earth are attracting each other why do Earth not fall on
Sun.
When we throw a big Stone in air It will Fall Back on Earth.
Simmilarly For Sun Earth is just a piece of Rock? Who do this big rock
Earth Fall onto the Sun Just like the Stones which we throw in air
just come back and hit the Earth?
Simmilarly why not the Moon fall on Earth by the Gravity attration?
Why are the planets revolving round the sun for so many years instead
of just falling onto the Sun?
When we visit Moon on a Rocket Our Rocket Just Falls on Surface of
moon So why these heavenly bodies not falling on Bigger one?
Bye
Sanny
Extreme Discussions at: http://www.getclub.com/Discussion.php
Why do poo smell when i step on it awful much . ? |
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| John Jones |
Posted: Mon Apr 28, 2008 7:04 am |
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Joined: 26 Oct 2004
Posts: 4263
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Sanny wrote:
Quote: When Sun and Earth are attracting each other why do Earth not fall on
Sun.
When we throw a big Stone in air It will Fall Back on Earth.
Simmilarly For Sun Earth is just a piece of Rock? Who do this big rock
Earth Fall onto the Sun Just like the Stones which we throw in air
just come back and hit the Earth?
Simmilarly why not the Moon fall on Earth b y the Gravity attration?
Why are the planets revolving round the sun for so many years instead
of just falling onto the Sun?
When we visit Moon on a Rocket Our Rocket Just Falls on Surface of
moon So why these heavenly bodies not falling on Bigger one?
Bye
Sanny
Extreme Discussions at: http://www.getclub.com/Discussion.php |
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| Ed |
Posted: Mon Apr 28, 2008 8:50 am |
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Guest
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On Apr 28, 7:01 am, SolomonW <Solom...@DONTBOTHER.com> wrote:
Quote: In article <cb4e6dd5-32ed-4105-8a48-53066d3fcda5
@b1g2000hsg.googlegroups.com>, solon...@earthlink.net says...
On Apr 27, 11:25 am, SolomonW <Solom...@DONTBOTHER.com> wrote:
In article <5b19dda4-0956-4950-86a6-
75e6a367b...@r66g2000hsg.googlegroups.com>, solon...@earthlink.net
says...
On Apr 27, 3:53 am, Sanny <softta...@hotmail.com> wrote:
When Sun and Earth are attracting each other why do Earth not fall on
Sun.
When we throw a big Stone in air It will Fall Back on Earth.
Simmilarly For Sun Earth is just a piece of Rock? Who do this big rock
Earth Fall onto the Sun Just like the Stones which we throw in air
just come back and hit the Earth?
Simmilarly why not the Moon fall on Earth by the Gravity attration?
Why are the planets revolving round the sun for so many years instead
of just falling onto the Sun?
When we visit Moon on a Rocket Our Rocket Just Falls on Surface of
moon So why these heavenly bodies not falling on Bigger one?
Bye
Sanny
Extreme Discussions at:http://www.getclub.com/Discussion.php
This is a deep question. It goes right to the heart of why gravity
and space behave the way they do. As posted above, Newton and
Einstein have given us mathematical models of *how* gravity and space
behave but not *why*.
Agreed
The only answer that comes to mind is the
anthromorphic principle, which seems to me to be not quite satisfying.
How would an anthromorphic principle helps here?- Hide quoted text -
- Show quoted text -
From Wikipedia "In physics and cosmology, the anthropic principle
states that humans should take into account the constraints that human
existence as observers imposes on the sort of universe that could be
observed. In other words, the only universe we can see is one that
supports life. If it were a different type of universe, we would not
exist to see it."
Mmmmmmmmmmmmmmm
Check what anthromorphic means!- Hide quoted text -
- Show quoted text -
Yeah I got my spelling all bolixed up!
Anthropic |
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| Guest |
Posted: Mon Apr 28, 2008 9:04 am |
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On Apr 28, 1:28 pm, "Mark Earnest" <gmearn...@yahoo.com> wrote:
Quote: slus...@lw4u.com> wrote in message
news:d688ac5d-6b1f-4f83-9dc7-85a5864e816e@r66g2000hsg.googlegroups.com...
On Apr 28, 1:31 am, "Mark Earnest" <gmearn...@yahoo.com> wrote:
"Sam Wormley" <sworml...@mchsi.com> wrote in message
news:IicRj.139584$yE1.99344@attbi_s21...
Mark Earnest wrote:
"Sam Wormley" <sworml...@mchsi.com> wrote in message
news:2TbRj.139551$yE1.94807@attbi_s21...
Mark Earnest wrote:
"Sam Wormley" <sworml...@mchsi.com> wrote in message
news:jdaRj.139437$yE1.67749@attbi_s21...
Mark Earnest wrote:
The Earth does not fall into the Sun because it is constantly
accelerating
at a right angle to the Sun.
Whoops! The force (gravity) is directed toward the sun and hence the
acceleration is directed toward the sun.
Whoops yourself. If the acceleration was all toward the Sun, the
planet would fall into the Sun, just as the OP perceives.
It is the right angel acceleration that keeps the planet from falling
into the Sun.
See:http://honolulu.hawaii.edu/distance/sci122/Programs/p16/p162.gif
That is fine, except it leaves out the acceleration perpendicular to
the
acceleration
toward the star.
Recommend you get yourself a freshman physics book and do
some self education. Best of luck.
I've already taken that class and made an A.- Hide quoted text -
- Show quoted text -
I believe Sam was referring to the fact that while there is a
*velocity* component in the direction tangent to the orbit, the
acceleration (change in velocity) is directed toward the center of the
star.
*****I agree that modern science backs you up, but respectfully, that makes
no sense at all.
*****There are only two pulls on an orbitting planet: the pull toward the
Sun, of constant acceleration, and the pull at right angles to the direction
of the Sun, also one of constant acceleration.
*****If it were any other way, the planet would indeed fall into the Sun.- Hide quoted text -
- Show quoted text -
Hi Mark,
So what is it that is "pulling" in the direction right angles to the
sun?
As others have mentioned (in paraphrase) if you were on the moon and
shot a cannonball parallel to the ground, it would travel for awhile
in that direction, while also falling toward the Moon due to
gravitational acceleration. Eventually it hits the ground.
Now, shoot the cannonball out faster. It goes quite a bit farther
before still eventually falling and hitting the ground.
Shoot it out even faster yet, and it goes so far that even as it
falls, the surface of the round Moon is curving away from it
noticeably. It is only being accelerated (pulled) toward the center
of the Moon, but it has enough starting velocity so that it might
travel all the way to the other side of the Moon before hitting the
ground.
Finally, with an even faster shot, it travels all the way around the
Moon and hits the back of the cannon. Or, if you move the cannon, it
keeps traveling around the Moon, in orbit, still with only its initial
velocity, and the only pull coming from the Moon, toward its center.
Spencer |
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