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Bonehead9
Joined: 08 May 2002
Posts: 176
Location: suburb of Chicago, IL US |
 Thu May 16, 2002 5:14 am
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From the article above:
"from an orbit 3 trillion miles away"
A tenth planet 3 trillion miles away might be able to preturb the orbits of comets, but would likely have no measurable effect on the Earth.
A black hole huh? well I am not going to lose any sleep woring about that possibility. If its there, we can't do anything about it, if not who cares?
An asteroid could hit the Earth and we all could go the way of the dinosuars. We will eventually anyway, so who cares?
All of this is besides the point. The sun is setting where it is suposed to be setting. |
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theseeker
Joined: 25 Jul 2000
Posts: 3403
Location: Damnit...I'm a doctor jim |
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Thu May 16, 2002 5:25 am
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so who cares
no need to get testy bonehead...you said :
Hey, I'm always open to new ideas and discoveries. If it turns out that "Planet X" is real and the discovery is verified and peer reviewed, then great.
and I gave you a link to a possible planet x...you should rejoice...Ja rastafari...
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T/S
[Edited 1 times, lastly by theseeker on 05-15-2002] |
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KnewEyes
Joined: 23 Apr 2001
Posts: 667
Location: under those cloud-like things |
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Thu May 16, 2002 6:15 am
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quote:
The sun is setting where it is suposed to be setting.
Such a cut and dried statement Bonehead.
Are we to believe that you are going to be the supplier of the reputable information that there is nothing unusual about the many new actions the sun is taking these days? You know for a fact that the sun is setting where it should be setting?
Hey Duncan,,, Have you used your program with the latitude information I gave you yet? You seem strangely quiet this evening.
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Bob
Joined: 21 Nov 2001
Posts: 28
Location: Tahlequah, Ok. USA |
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Thu May 16, 2002 4:27 pm
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Kneweyes, try finding the north star and observing it. We are having storms here so I couldn't see it last night. If there was a slow shifting of the poles it would become obvious just by pointing a telescope at the north star and tracking it to see if it moves. It may have a slight wobble naturally~I don't know but I'm sure someone on this board knows. If not I'll research it tonight when I have more time. If the sun has moved enough to be noticed then observations of the north star would easily identify a shift and its degree.
[Edited 1 times, lastly by Bob on 05-16-2002] |
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Duncan Kunz
Joined: 19 Oct 2000
Posts: 582
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Thu May 16, 2002 5:08 pm
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[Edited 1 times, lastly by Duncan Kunz on 06-06-2002] |
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Duncan Kunz
Joined: 19 Oct 2000
Posts: 582
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Thu May 16, 2002 5:11 pm
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[Edited 2 times, lastly by Duncan Kunz on 06-06-2002] |
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Duncan Kunz
Joined: 19 Oct 2000
Posts: 582
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Thu May 16, 2002 5:28 pm
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[Edited 3 times, lastly by Duncan Kunz on 06-06-2002] |
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Duncan Kunz
Joined: 19 Oct 2000
Posts: 582
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Thu May 16, 2002 6:56 pm
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[Edited 2 times, lastly by Duncan Kunz on 06-06-2002] |
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WiseQuakker
Joined: 21 Aug 2000
Posts: 141
Location: Wherever I happen to be at the time |
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Thu May 16, 2002 10:49 pm
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If you have a spare 7 or 8 meg on your machine, you may want to download the FREE HomePlanet application. It will allow you to view the sky from any place on earth and set the time within a range of several thousand years. Yes, you can even review and study the precession of the equinoxes...
_____________________________
“By itself, science — defined by human beings — can only tell us what should be. Deal with it......”
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Bonehead9
Joined: 08 May 2002
Posts: 176
Location: suburb of Chicago, IL US |
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Fri May 17, 2002 3:43 am
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Sorry if I seem a little testy, Theseaker, but I feel a little frustrated. To me the concept of Conservation of Angular Motion is intuitively obvious, but unfortunately, it is a little difficult to describe in a way that other people can look at and say "Oh, I see now."
Again, this is not an astronomy question but basic physics. As long as the Earth is rotating about its axis, then the axis will maintain the same orientation in space, no mater what!
But, you say, the Earth’s axis does rock back and forth. Yes, so be it, That doesn’t matter. There is no way that the Earth’s axis of rotation can significantly change from it’s existing orientation (regardless of the seasonal tilt) without violating the law of Conservation of Angular Momentum. Keep in mind also, that any force big enough to effect the Earth will effect the entire planet equally.
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theseeker
Joined: 25 Jul 2000
Posts: 3403
Location: Damnit...I'm a doctor jim |
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Fri May 17, 2002 8:33 am
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don't sweat it bonehead, certain things were set in motion long ago and would take one helluva celestial event to alter...I certainly was not doubting your presentation on spin...
and don't get discouraged, open~minded folks will listen...and some won't...a poster here yesterday popped off about ari fleirsure(sp) being a liar, I provided a link to connie rice's entire whitehouse statement regarding the discussed issues and was told by that poster to keep my opinion, when basically all I did was post a factual document...and make a reasonably sane observation...
the Pteranodon is the favorite "terrible lizard" in this household...followed closely by the Triceratops and stegosaurus....
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T/S |
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penumbra
Joined: 24 Apr 2001
Posts: 672
Location: North Carolina |
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Fri May 17, 2002 2:43 pm
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I read a lot of info about the Chandler Wobble yesterday. Scientists think that changes in the ocean tidal movement (due to tectonic plate movement on the ocean floors) has the greatest effect on wobble variation. Of course increased solar activity has an effect on Earth's crustal movement. Volcanic eruptions also contribute to wobble variations, due to aerosol distribution in the upper atmosphere. There seems to be some disagreement among scientists as to whether earthquakes cause variations or vice versa.
Here's what NASA has to say:
The cause of this wobble is believed to reside in the natural resonances in the body of the spinning earth due to the detailed distribution of mass in its surface, interior, oceans and atmosphere. This system has a '14-month' harmonic which can be excited through a complex pattern of forcings by the moon, sun and sudden crustal rearrangements (earthquakes). There are many distinct periodic excitations by the sun and moon and their changing distances and tidal forcings, and these result in distinct monthly, yearly and multi-year periodicities in the polar wander. The Chandler Wobble may be a natural harmonic resonance that is also stimulated by these other constant lunar-solar forcings at the natural resonance frequency of the solid earth.
http://image.gsfc.nasa.gov/poetry/ask/a11657.html
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Bonehead9
Joined: 08 May 2002
Posts: 176
Location: suburb of Chicago, IL US |
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Sat May 18, 2002 12:07 am
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I would like to clear up one mistake I made in an earlier post, where I stated the Earth's axis rocks back and forth. Sorry about that (brain cramp). Actually the seasonal shift of the Earth is the perfect example of what I am trying to say. I found a good illustration here:
Notice that the axis maintains the same orientation in space.
Also, don’t confuse Chandler’s wobble with the seasonal shift. As illustrated above, the seasons change because the Earth’s axis of rotation is not perpendicular to the orbital plane. Chandler’s wobble is very small compared to this.
[Edited 2 times, lastly by Bonehead9 on 05-17-2002] |
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KnewEyes
Joined: 23 Apr 2001
Posts: 667
Location: under those cloud-like things |
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Sat May 18, 2002 5:38 pm
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Huh, what Duncan?
Gee, I was looking for the easy way out on this one! You are the science head, not me 
I was hoping you could press a few buttons and come up with the answer!
I went to that site and got the horizon azimuth points, but beyond that, I didn't know what to do with that info.
I guess if I put some time and effort into it, I would learn it, but,,, I have to feel the drive to learn a certain subject in order for it to "take". I have no control over what my desired subject of knowledge is,, it just is, or isn't and I'm finally coming to terms with "not being able to know it all" even though I may want to.
Knowledge comes easy,, or it doesn't, depending on what your essence is "geared for". So, I will try to do the best at what I do, and will appreciate the contributions of individuals who have the ability to do what I can't do, and I will wait till you get back from your getaway and hope that you can give an answer on this.
We all have a gift for one thing or another, and I have decided to let whatever mine is, to just flow,, without trying to force it in any way. I make no apologies for this either. |
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