-
Starting today August 7th, 2024, in order to post in the Married Couples, Courting Couples, or Singles forums, you will not be allowed to post if you have your Marital status designated as private. Announcements will be made in the respective forums as well but please note that if yours is currently listed as Private, you will need to submit a ticket in the Support Area to have yours changed.
-
CF has always been a site that welcomes people from different backgrounds and beliefs to participate in discussion and even debate. That is the nature of its ministry. In view of recent events emotions are running very high. We need to remind people of some basic principles in debating on this site. We need to be civil when we express differences in opinion. No personal attacks. Avoid you, your statements. Don't characterize an entire political party with comparisons to Fascism or Communism or other extreme movements that committed atrocities. CF is not the place for broad brush or blanket statements about groups and political parties. Put the broad brushes and blankets away when you come to CF, better yet, put them in the incinerator. Debate had no place for them. We need to remember that people that commit acts of violence represent themselves or a small extreme faction.
Interesting?
- Thread starter Outspoken
- Start date
why don't i just sum a whole bunch of points up
1. gas giant planets, such as jupiter, saturn, uranus and neptune, may have formed rather quickly, in the space of a few hundred years
2. jupiter is quite a large planet. it does, in fact, pull in a few asteroids and comets that could have struck earth with rather nasty effects. shoemaker-levy 9 was a noteable one.
3. the speed of these gas giants' formations may or may not have mattered. in any case, rocky planets would have taken much longer to form. if it hadn't been there, who knows, maybe earth would have been an extra 10 million miles farther from the sun. maybe mars would have been closer. the chances of an object reaching stable orbit around a star aren't too shabby, there's a ton of asteroids in the asteroid belt in a pretty stable orbit, not to mention the inner 4 planets.
1. gas giant planets, such as jupiter, saturn, uranus and neptune, may have formed rather quickly, in the space of a few hundred years
2. jupiter is quite a large planet. it does, in fact, pull in a few asteroids and comets that could have struck earth with rather nasty effects. shoemaker-levy 9 was a noteable one.
3. the speed of these gas giants' formations may or may not have mattered. in any case, rocky planets would have taken much longer to form. if it hadn't been there, who knows, maybe earth would have been an extra 10 million miles farther from the sun. maybe mars would have been closer. the chances of an object reaching stable orbit around a star aren't too shabby, there's a ton of asteroids in the asteroid belt in a pretty stable orbit, not to mention the inner 4 planets.
Upvote
0
"3. the speed of these gas giants' formations may or may not have mattered."
No mattered? You've got to be joking.
No mattered? You've got to be joking.
Upvote
0
what do you mean by that? since you objected to the formation of earth, i was stating that the speed of formation of the gas giant may or may not have affected the speed of formation of rocky planets such as earth. if jupiter had not existed, for example, earth may just as well have been in this orbit. maybe life wouldn't spring up due to some odd mishap that jupiter caused. maybe it would have.
Upvote
0
you seem quite sure of yourself for someone who has not had direct experience in the field of study.
Upvote
0
"if jupiter had not existed, for example, earth may just as well have been in this orbit."
You really think so? So your conclusion is that NO other planet effects earth's orbital path at all? You're serious right?
You really think so? So your conclusion is that NO other planet effects earth's orbital path at all? You're serious right?
Upvote
0
lithium.
Well-Known Member
- Sep 22, 2002
- 4,662
- 4
- Country
- United States
- Faith
- Agnostic
- Marital Status
- Single
- Politics
- US-Democrat
I don't know if he is saying that, but it really might not have mattered remember there was still Mars, Venus, Mercury, and all the other planets that are solid like earth.
Upvote
0
"it really might not have mattered remember there was still Mars, Venus, Mercury, and all the other planets that are solid like earth."
agreed, but think about it, they all play a role in orbital path....
agreed, but think about it, they all play a role in orbital path....
Upvote
0
Who feels like some math?
The universal gravitation formula (used to calculate the force planets exert on one another) goes something as follows:
((Mass Earth)*(Other planet's mass)) / (distance between the two)^2 = gravitational force existing between the planets
We can use this formula to compare the force existing between the earth and jupitor, and the force existing between the earth and a much closer planet (such as the moon).
Mass of jupitor: 1.9e22kg
Distance from here to jupitor: 630 mill km (and that is when jupitor is CLOSEST to the earth)
Mass of moon: 7.36e22kg
Distance from here to moon: 387,000km
Plug the respective values into the above formula:
Force between earth and jupitor = 2.85e29 (units are newtons, I think)
Force between earth and moon = 2.93e36
Divide the two: 2.93e36/2.85e29 = 10,280,701
This shows that Jupitor has a gravitational influence on the earth that is less than a 10 millionth of what the moon has on the earth (the moon being a close, solid rock planet). And remember, these calculations are done when jupitor is at its closest to earth.
Even if the moon had a very significant influence on the earths orbit, an influence that is 10 million times less that magnitude is entirely negligable.
Notice also, the moon is actually HEAVIER than jupitor since it is considerably more dense.
math = fun
Upvote
0
"Even if the moon had a very significant influence on the earths orbit, an influence that is 10 million times less that magnitude is entirely negligable."
Hmm...I agree, and I think if that was removed the earth would not be in the same orbit. are you saying otherwise? I actually did the "math" the same day I read the article, physics is fun
Hmm...I agree, and I think if that was removed the earth would not be in the same orbit. are you saying otherwise? I actually did the "math" the same day I read the article, physics is fun
Upvote
0
Look at how much the moon affects the earths orbit, and divide that by 10 million. At that point we would be talking about an influence that changes the earths orbit by probably an inch (if even that).
If jupitors mass affected the earths orbit by any significant amount, you would have to take that value and multiply is by 10 million to see the moons affect on the earth. We would likely be living in a world where small animals and children would be vaulted into the stratosphere with every months passing of the moon overhead.
Upvote
0
you notice the word "may"? it means it is a possibility. could have been, could not have been. requires further testing. inconclusive. you're shoving words in my mouth then saying i'm wrong.
Upvote
0
of course they play a role. they all exert a force of gravity on earth. but how much of a force? enough to move earth a couple meters, even a few kilometers in its orbit? how much of a difference is that compared to about 150 million km?
and anyway, life is not all that fragile. bacteria carried by astronauts managed to survive about 5 years on the moon without atmosphere, when the next lunar mission found bactera they thought there was life on the moon. there is also the possibility that mars used to have life, but became inhospitable or something.
Upvote
0
"At that point we would be talking about an influence that changes the earths orbit by probably an inch (if even that)."
You've got to be joking here. You think that it is just that straight cut? Nothing is ever that straight on at all, as for the moon effecting the earth, I think it does in a major way, and if it didn't exsist, we probalby would not be in the same orbit at all.
"you're shoving words in my mouth then saying i'm wrong."
No, if you'll notice I did end my sentences with a ? mark.
" life is not all that fragile."
yup, but the creation of it is, well at least by noncreationist standards that's the problem, this is just another piece of evidience showing me that it didn't just "happen".
You've got to be joking here. You think that it is just that straight cut? Nothing is ever that straight on at all, as for the moon effecting the earth, I think it does in a major way, and if it didn't exsist, we probalby would not be in the same orbit at all.
"you're shoving words in my mouth then saying i'm wrong."
No, if you'll notice I did end my sentences with a ? mark.
" life is not all that fragile."
yup, but the creation of it is, well at least by noncreationist standards
that's the problem, this is just another piece of evidience showing me that it didn't just "happen".
Upvote
0
the sentence you keep repeating above seem to denote a kind of mockery, or doubting, of the ideas i present.
Upvote
0
No, it's not that straight cut, but it doesn't matter. The fact of the matter is, is that Jupitor has no practical influence on the earths orbit. The influence may result in a change by an inch, or it may be a few angstrums, and it will vary within a range as the distance between the earth and jupitor changes. There is no need to calculate the precise exact reaction (such as implementing decaying orbits or the presence of dark matter, etc.) of the earth to jupitors gravity field to come to the above conclusion.
Upvote
0
Similar threads
