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Science Forum Index » Astronomy Forum » Why do earth not Fall on Sun?
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| Smooth John |
Posted: Sun Apr 27, 2008 6:40 am |
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Guest
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On Apr 27, 6:30 pm, "Dirk Van de moortel" <dirkvandemoor...@ThankS-NO-
SperM.hotmail.com> wrote:
Quote: "Mike" <elea...@yahoo.gr> wrote in messagenews:fbd8eed8-4558-4d16-8615-fad82ccb5386@m36g2000hse.googlegroups.com...
Yep,
we know who you are:
http://groups.google.com/group/sci.physics.relativity/msg/659ed80c392...
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/18246d2052b...
| 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.
|
| 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.
|
| 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.
|
| 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.
|
| Plonk Dirk
|
| Mike
tsk tsk
Dirk Vdm
maybe he dont use a good computer program helping
him not to read, but in stead of, he read that kill file manually,
then he start not to read |
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| Robert J. Kolker |
Posted: Sun Apr 27, 2008 6:52 am |
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Guest
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Sanny wrote:
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?
If your big rock had a tangential speed of over 18,000 miles an hour it
would not fall to earth. Consiser all those satillites in low orbit.
They are big rocks thrown by rockets.
In -Pricipia- Newton drew a diagram showing how a cannon could launch a
cannon ball that would orbit the earth without falling back to the
ground. (of course he ignored air friction to make the point).
For Sanny, it was as though Isaac Newton had never lived.
Bob Kolker |
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| Robert J. Kolker |
Posted: Sun Apr 27, 2008 9:22 am |
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flamestar wrote:
Quote: The answer is as both A and B are right they split the difference and
the Earth does not move away from the sun or fall into it. It stays
the same distance away.
Not true. The earth has an eliptical orbit.
Bob Kolker |
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| flamestar |
Posted: Sun Apr 27, 2008 9:32 am |
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Guest
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On Apr 27, 10:22 am, "Robert J. Kolker" <bobkol...@comcast.net> wrote:
Quote: flamestar wrote:
The answer is as both A and B are right they split the difference and
the Earth does not move away from the sun or fall into it. It stays
the same distance away.
Not true.
The earth has an eliptical orbit.
Bob Kolker
Not true the earth does not have an elliptical orbit because it
wobbles in its orbit. You are a person who so hates the truth that you
seek to prevent people from understanding scientific principles by
bring up irrelevant details. The world is an evil place because you
are in it. |
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| Matthew Lybanon |
Posted: Sun Apr 27, 2008 9:41 am |
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Guest
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In article
<91fc07f0-5c11-4056-a817-bbb10ff28f61@j33g2000pri.googlegroups.com>,
Sanny <softtanks@hotmail.com> 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.
When you throw a stone horizontally, why doesn't it fall straight down
(doesn't gravity pull it down)?
What if you threw the stone faster? What would it do?
What if you could throw the stone much, much faster?
Didn't you learn this in high school?
Quote: 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 |
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| SolomonW |
Posted: Sun Apr 27, 2008 10:25 am |
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Guest
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In article <5b19dda4-0956-4950-86a6-
75e6a367bd7b@r66g2000hsg.googlegroups.com>, solon013@earthlink.net
says...
Quote: 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
Quote: 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? |
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| Mike |
Posted: Sun Apr 27, 2008 10:38 am |
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Guest
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On Apr 27, 12:30 pm, "Dirk Van de moortel" <dirkvandemoor...@ThankS-NO-
SperM.hotmail.com> wrote:
Quote: "Mike" <elea...@yahoo.gr> wrote in messagenews:fbd8eed8-4558-4d16-8615-fad82ccb5386@m36g2000hse.googlegroups.com...
Yep,
we know who you are:
http://groups.google.com/group/sci.physics.relativity/msg/659ed80c392...
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/18246d2052b....
| 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.
|
| Plonk
|
| 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.
|
| 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.
|
| 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.
|
| Plonk Dirk
|
| Mike
tsk tsk
Dirk Vdm
ok, ok, ok,...
Plonk
Mike |
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| John Jones |
Posted: Sun Apr 27, 2008 10:48 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 Fo r 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 o n 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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| Dwib |
Posted: Sun Apr 27, 2008 10:52 am |
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Guest
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On Apr 27, 2:53�am, Sanny <softta...@hotmail.com> wrote:
Quote: When Sun and Earth are attracting each other why do Earth not fall on
Sun.
Yes, Earth fall on Sun. But keep missing. Stupid Earth.
Dwib |
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| Sam Wormley |
Posted: Sun Apr 27, 2008 11:02 am |
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Guest
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| Sam Wormley |
Posted: Sun Apr 27, 2008 11:07 am |
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Guest
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flamestar wrote:
Quote:
You assume the Earth isn't moving but it is. So one can also ask as
the Earth is moving very fast why doesn't it leave the sun behind?
Here is how it works,
1. The speed of the Earth means that the Earth will keep travling away
from the Sun.
2. The gravity of the sun means the Earth will be pulled into it.
The answer is as both A and B are right they split the difference and
the Earth does not move away from the sun or fall into it. It stays
the same distance away.
The earth is following a geodesic in the curved spacetime about
the sun. In Newtonian terms it is in a closed Keplerian elliptical
orbit about the sun... forever falling, but always missing the
sun. |
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| Sam Wormley |
Posted: Sun Apr 27, 2008 11:09 am |
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Guest
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Ed wrote:
Quote:
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*.
Given the way the universe is the why is pretty well answered by GTR. |
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| Sam Wormley |
Posted: Sun Apr 27, 2008 11:12 am |
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Guest
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Matthew Lybanon wrote:
Quote: In article
91fc07f0-5c11-4056-a817-bbb10ff28f61@j33g2000pri.googlegroups.com>,
Sanny <softtanks@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.
When you throw a stone horizontally, why doesn't it fall straight down
(doesn't gravity pull it down)?
What if you threw the stone faster? What would it do?
What if you could throw the stone much, much faster?
Didn't you learn this in high school?
It's a troll posting... kill filters work remarkably well.
+------------+ +---------------------------------------------+
| PLEASE | | BEST TO IGNORE ATTENTION SEEKING TROLLS |
| DO NOT | | LIKE SANNY -- THEY DRY UP AND BLOW |
| FEED | | AWAY WITHOUT FEEDBACK |
| DA | | |
| TROLLS | | http://www.angelfire.com/space/usenet/ |
+------------+ +---------------------------------------------+
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
`\ '/ / ' / `\ '/ / ' / `\ '/ / ' / |
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| Dirk Van de moortel |
Posted: Sun Apr 27, 2008 11:30 am |
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Guest
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"Mike" <eleatis@yahoo.gr> wrote in message news:fbd8eed8-4558-4d16-8615-fad82ccb5386@m36g2000hse.googlegroups.com...
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.
|
| Plonk
|
| 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.
|
| 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.
|
| 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.
|
| Plonk Dirk
|
| Mike
tsk tsk
Dirk Vdm |
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| Back to top |
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| Darwin123 |
Posted: Sun Apr 27, 2008 12:27 pm |
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Guest
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On Apr 27, 3:53 am, Sanny <softta...@hotmail.com> 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?
The moon does fall. It just keeps missing. It has an initial
velocity pointed sideways from the earth. The velocity starts to
change direction toward the earth as it moves sideways. However, the
earth surface has moved downward during this time because it is
round.
The object is falling, in the sense that its path changes
direction toward the other body. However, the surface of the other
body is also changes direction away from the orbiting body. So the
orbiting body is no closer to the surface.
One way to look at it is to ask onself what would happen if the
earth was really flat, rather than round? The moon would still start
falling toward the earth. However, the earth would not be curving away
from the moon. So the moon would eventually hit.
That is why an orbit is called a free fall. It quite literally is
falling. The people in the International Space Station are falling.
But everything is falling at the same rate. So the appearance in the
spaceship is one of weightlessness. The expression "free fall" is more
correct. |
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