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  #31 (permalink)  
Old 14-June-2005, 03:34 PM
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[quote="Hamlet"]
Quote:
Originally Posted by username24
... You may want to have a look at this thread from a while back. I did some calculations on the energy required to stop the Earth's rotation.
You're good, you actually answered my question before I was finished writing it. =D>
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  #32 (permalink)  
Old 11-April-2008, 05:00 PM
ziadn27 ziadn27 is offline
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The science of astronomy states that the speed of planet Mars has been decreasing in its course toward the eastern direction in the few past weeks to the level we notice the "waver" between the east and the west..and on Wednesday the 30th of July the planet movement stopped going toward the eastern direction.. Then in the months of August and September...Mars changed its course in the opposite direction to the West- and that until the end of September..which means the sun will rise now from the west on Mars!! And this weird phenomena of the opposite movement called "Retrograde Motion" Most scientist state that all the planets will go through the same once at least and our planet Earth is one of them. Planet Earth will move in the opposite direction some day and the sun will rise from the west!! This might occur soon and we are unaware! The rise of the sun from the west is mentioned in the hadith and this is the major sign of the day of judgment, most if not All, the minor signs have occured. Wake up. Our beloved messenger Mohamed (Peace Be Upon Him) said: "One of the signs of the hour..the sun will rise from the west, where no longer tauba (forgiveness) will be granted" !! And the strange thing..most of our Shariah scholars mentioned that the rise of the sun from the west occurs only once..on that day..the sun will rise from the west..then again from the east..and continues until Allah wishes..and this is similar to what is happening to Mars..it stops, then it changes its course of direction for a short period of time..then returns to way once it was. And Abdullah Bin Amro (R.A.) said: (I memorized from the messenger (SAW) a hadith I will never forget..I heard the messenger of Allah (SAW) say: The first aya to come the rise of the su! n from the west) [Ahmad] And the messenger SAW "Allah (SWT) places HIS hand at night to forgive his morning sinners, and places in the morning to forgive his night sinners until the sun rises from the west" [Muslim] This piece of news is very important as it brings with it a great sign of warning and remembrance of the coming of a new WORLD - the world of the Hereafter And it is also good material for calling others to ALLAH s.w.t. - whether for muslims, the unwary of us or the kufar. When we show this hadith that was told 1400 years ago about this miracle..you will see InshaALLAH, a lot will enter this beautiful religion...And the muslims if they see this phenomena happening in Mars..who knows maybe it would bring them closer to our CREATOR. May Allah (swt) keep all of us in the Right path and provide us with success in this world as well as in the hereafter
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  #33 (permalink)  
Old 11-April-2008, 05:22 PM
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1) Retrograde motion of a planet is "as seen from Earth"! It has nothing to do with where the Sun rises as seen on the planet. Every superior planet (one that orbits farther from the Sun than the Earth) undergoes a retrograde period around opposition as the Earth catches up with and passes the outer planet.
2) Welcome to BAUT.
3) Read the rules. Religion and politics are frowned upon here!
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Old 11-April-2008, 07:55 PM
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puts dirt over the thread hoping it will go back to where it has been wrongfully pulled out.
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  #35 (permalink)  
Old 12-April-2008, 02:00 AM
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Damn! Too late... I was going to point out the most likely reason(s) for the questions - ah well... I can offer...
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Last edited by Acolyte; 14-April-2008 at 09:00 AM. Reason: The vanishing shovel icon I offered... ???
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Old 14-April-2008, 08:05 AM
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Quote:
Originally Posted by The Bad Astronomer View Post
Get in a high-speed jet and fly west very quickly just after sunset. If you can go faster than the Earth rotates, then the Sun will rise. This is easier at higher latitudes...
I actually did this driving. I was driving East through Arizona, and noticed that the Sun was just about to set over the western mountains. It was going to set over a flat area on the mountains, so I thought there might be a chance for a green flash. I was right. It green flashed. So I pulled back onto the road, staring at the western mountains in the rear-view mirror, and all of a sudden there was a brilliant blue flash which quickly turned green as the I outraced the mountain's shadow, causing the Sun to rise. I've heard that in certain circumstances you can get a blue flash after the green flash, and I'm not sure if that's what I saw, or if the color was because I was watching it through my rear-view mirror through the back windshield. I slowed down to let the mountain shadow catch up, and got another green flash as the sun once again set. Then I sped up to outrace the shadow again. I was hoping to go at just the right speed to prolong the green flash. But at this low angle, the shadow's speed was accelerating, and I wasn't able to catch it again.

So if you count the Sun setting over mountains rather than setting over the horizon, you can do it in a car.
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  #37 (permalink)  
Old 14-April-2008, 12:39 PM
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Unless a major impact occurs to change rotation, there would be no difference. If the earth rotated the other way only clocks and tides would be affected.
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  #38 (permalink)  
Old 15-April-2008, 12:27 AM
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Quote:
Originally Posted by Sean Clayden View Post
Unless a major impact occurs to change rotation, there would be no difference. If the earth rotated the other way only clocks and tides would be affected.
I'd have thought there'd be pretty major effects no matter how it was reversed. An abrupt change would have a miles-high tidal wave sweeping around the earth, possibly bring on crustal slippage &/or cause massive earthquakes. Maybe even set off Yellowstone.

Even a slow down to a stop & then start again in the other direction would be significant seismically, as well as cause alterations to how many levels of the ecosphere work & maybe affect the magnetic field enough to let in sufficient radiation to kill or alter life. IIRC that the magnetic field is tied into rotation.

I think it's called a ELE - Extinction Level Event.

Um... Why would clocks be affected? Provided the Earth still rotates at 24 hours per turn, 7AM would still be 7AM.
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Last edited by Acolyte; 15-April-2008 at 12:29 AM. Reason: Ask the clock question
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  #39 (permalink)  
Old 16-April-2008, 08:34 AM
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Default Re: What are the Likely Senarios to make the sun rise from west?

Want to see the Sun rise in the west? Easy! Video a sunset and run it backwards. Plus you'll get the same lateral motion effect (defect if representing an eastern sunrise) as seen in the latest LDS TV commercial.
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  #40 (permalink)  
Old 16-April-2008, 11:38 AM
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Quote:
Originally Posted by Maksutov View Post
Want to see the Sun rise in the west? Easy! Video a sunset and run it backwards. Plus you'll get the same lateral motion effect (defect if representing an eastern sunrise) as seen in the latest LDS TV commercial.
Yes, that's another solution. Or more radically, make time run backwards. If Superman can do it, then I'm sure Al..., uh, Go..., uh, Bu..., whatever, could do it!

I still see the idea of relabeling maps as the best solution. Changing the words for east and west would do the trick with no need to unpleasantries like crustal displacement.
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Old 17-April-2008, 10:30 AM
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The atmosphere would protect the Earth from radiation even w/o the mag. field, the only difference would be that after a billion years or so our atmosphere would be as thin as Mars's.As for mag. field tied into rotation, isn'nt it created in the inner core and therefore the flip will not affect it?
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  #42 (permalink)  
Old 17-April-2008, 07:50 PM
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Why?
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  #43 (permalink)  
Old 03-June-2008, 05:53 PM
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I think there is a very obvious and logical explanation for username asking all these questions about affecting the Earth's rotation.

He's clearly building a doomsday device and wants to gather as much information as possible. I think we should do everything in our power to stop him.
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Old 04-June-2008, 09:19 AM
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Quote:
Originally Posted by highschoolphysics View Post
I think there is a very obvious and logical explanation for username asking all these questions about affecting the Earth's rotation.

He's clearly building a doomsday device and wants to gather as much information as possible. I think we should do everything in our power to stop him.
Or miss-lead him.
Eitherway the renaming option is the easiest solution on my books.
The third world countries will no longer complain about the "West" or "western powers" imagine that, I am for the renaming.
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Old 06-June-2008, 04:26 AM
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Quote:
Originally Posted by mfumbesi View Post
Or miss-lead him.
Eitherway the renaming option is the easiest solution on my books.
The third world countries will no longer complain about the "West" or "western powers" imagine that, I am for the renaming.
We could also rename "south" "north", and then you get to be on the top of the map!
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  #46 (permalink)  
Old 06-June-2008, 03:20 PM
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Default another way to look at it

The space shuttle's power at takeoff is 11 billion joules per second. Tip it over, exhaust facing east, and cram one per acre onto every acre of land on the surface of the earth. Now run them all, full blast, for 20 years straight.

Rinse and repeat if you want the earth to spin in the opposite direction rather than just stop spinning.

Summary: Not going to happen, at least not by us. And if it happens via an external source, life on earth would not survive, as was mentioned earlier (the earth itself quite possibly wouldn't survive either).

*EDIT: Yes, I realize that the rockets on the south pole can't face east and wouldn't be helping the situation.
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Old 08-June-2008, 03:53 PM
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Quote:
Originally Posted by username24 View Post
[1] What are the Likely Senarios to make the sun rise from west?

What I mean is that, the sun currently rises from the east, what does it take to make the sun rise from the west.
A) Drugs. Lots of drugs.

B) Blindfold someone and spin them around really really fast until they don't know east from west.


I've seen both examples, usually in kids nearby to college campuses.....
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  #48 (permalink)  
Old 08-June-2008, 06:17 PM
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I know that this thread is a zombie, but I think that may have a novel approach. All the answers basically point to a change in the Earth's rotation. More than likely from some godawful impact hitting the Earth at the correct angle. What if some highly powerful magnetic object were to pass by the planet rapidly. Not impacting but briefly grabbing hold of the Earth's core and mantle and forcing a change of rotation from within. The crust may continue spinning normally for sometime but wouldn't the friction caused by the interior spinning in the opposite direction eventually force the crust to adjust to the mantle and core. Yeah, the whole scenario is highly improbable but it just appeared as a possibility.
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  #49 (permalink)  
Old 09-June-2008, 01:10 PM
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The "spinning momentum" of the Earth's core will still need to be transfered somewhere. I like the BA's trashing of the movie The Core for a better description of what will happen if "something" stopped the Earth's core.

Quote:
...If the core were to stop rotating, all that energy would have to go somewhere, and where it would go is into the surrounding mantle. Again, if I have done my math correctly, that's enough energy to vaporize all the oceans on the Earth, ten times over........
Here is linky to the review http://www.badastronomy.com/bad/movi...re_review.html
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