The 1st and obvious answer is that half the world would be night and the other half would be day without change.
However, what would be the less apparent effects? For example, how would it affect the ecosystem, the climate, polar ice caps.
Lets assume that the Earth stops spinning in a manner such that it is the time [in terms of sun/earth orientation] always 4:30 AM standard-time in Stamford, Connecticut. Let's also assume that the Earth's movement stops when it is summer for the southern hemisphere and winter for the northern hemisphere.
What would be the effects? That it would be always be summer in Australia and winter in Canada is self-explanatory.
> The 1st and obvious answer is that half the world would be night and the > other half would be day without change.
> However, what would be the less apparent effects? For example, how would > it affect the ecosystem, the climate, polar ice caps.
> Lets assume that the Earth stops spinning in a manner such that it is > the time [in terms of sun/earth orientation] always 4:30 AM > standard-time in Stamford, Connecticut. Let's also assume that the > Earth's movement stops when it is summer for the southern hemisphere and > winter for the northern hemisphere.
> What would be the effects? That it would be always be summer in > Australia and winter in Canada is self-explanatory.
> The 1st and obvious answer is that half the world would be night and the > other half would be day without change.
> However, what would be the less apparent effects? For example, how would > it affect the ecosystem, the climate, polar ice caps.
> Lets assume that the Earth stops spinning in a manner such that it is > the time [in terms of sun/earth orientation] always 4:30 AM > standard-time in Stamford, Connecticut. Let's also assume that the > Earth's movement stops when it is summer for the southern hemisphere and > winter for the northern hemisphere.
> What would be the effects? That it would be always be summer in > Australia and winter in Canada is self-explanatory.
> Thanks,
> Radium
Um, you'd have to do your take home final yourself?
> The 1st and obvious answer is that half the world would be night and the > other half would be day without change.
> However, what would be the less apparent effects? For example, how would > it affect the ecosystem, the climate, polar ice caps.
> Lets assume that the Earth stops spinning in a manner such that it is > the time [in terms of sun/earth orientation] always 4:30 AM > standard-time in Stamford, Connecticut. Let's also assume that the > Earth's movement stops when it is summer for the southern hemisphere and > winter for the northern hemisphere.
> What would be the effects? That it would be always be summer in > Australia and winter in Canada is self-explanatory.
> Thanks,
> Radium
The seasons would occur as usual even without axial rotation -axial rotation generates daylight and darkness and changing orbital orientation to the central Sun generates seasonal daylight/darkness variations,
Standing on the Earth's polar axis is equivalent to a non rotating Earth,it stands to reasons that seasonal daylight/darkness variations are at the extremes while the effect becomes less variable towards the Equator (where no seasonal variations are seen).
Through this reasoning,there is a much better way to explain the seasons but alas,geodynamics is in a poor state at the moment and replacing the pseudo-dynamic of variable axial inclination with a new orbital component which causes the daylight/darkness variations may take a while.
oriel36 wrote: > On May 14, 3:08 am, "Green Xenon [Radium]" <gluceg...@excite.com> > wrote: >> Hi:
>> The 1st and obvious answer is that half the world would be night and the >> other half would be day without change.
>> However, what would be the less apparent effects? For example, how would >> it affect the ecosystem, the climate, polar ice caps.
>> Lets assume that the Earth stops spinning in a manner such that it is >> the time [in terms of sun/earth orientation] always 4:30 AM >> standard-time in Stamford, Connecticut. Let's also assume that the >> Earth's movement stops when it is summer for the southern hemisphere and >> winter for the northern hemisphere.
>> What would be the effects? That it would be always be summer in >> Australia and winter in Canada is self-explanatory.
>> Thanks,
>> Radium
> The seasons would occur as usual even without axial rotation -axial > rotation generates daylight and darkness and changing orbital > orientation to the central Sun generates seasonal daylight/darkness > variations,
> Standing on the Earth's polar axis is equivalent to a non rotating > Earth,it stands to reasons that seasonal daylight/darkness variations > are at the extremes while the effect becomes less variable towards the > Equator (where no seasonal variations are seen).
> Through this reasoning,there is a much better way to explain the > seasons but alas,geodynamics is in a poor state at the moment and > replacing the pseudo-dynamic of variable axial inclination with a new > orbital component which causes the daylight/darkness variations may > take a while.
> Hope this helps.
At the poles as well as the equator, the season is pretty much constant. The former being extremely cold while the latter being extremely hot.
Also, wouldn't the one side of the world remain night while the other side day if the earth's completely stopped moving?
> The 1st and obvious answer is that half the world would be night and the > other half would be day without change.
> However, what would be the less apparent effects? For example, how would > it affect the ecosystem, the climate, polar ice caps.
> Lets assume that the Earth stops spinning in a manner such that it is the > time [in terms of sun/earth orientation] always 4:30 AM standard-time in > Stamford, Connecticut. Let's also assume that the Earth's movement stops > when it is summer for the southern hemisphere and winter for the northern > hemisphere.
> What would be the effects? That it would be always be summer in Australia > and winter in Canada is self-explanatory.
> Thanks,
> Radium
The Earth would have to rotate on its axis once a year in order for one side to always be facing the Sun.
The night side would get very, very cold, maybe not cold enough to freeze nitrogen, but perhaps cold enough to freeze CO2. A huge ice cap would cover North America much like the Antarctic cap. The day side would get very hot. Equilibrium temperatures in places like China and Australia could be as high as 60-70 C. It would probably only be possible for life to flourish in the "twilight zone".
The atmosphere would be able to redistribute heat around the globe to some extent; there would be drastic changes in the sort of weather we have now, where the patterns and flow are largely driven by Earth's rotation (Hadley Cells, coriolis effects) and powered by heating effects of the sun.
On Tue, 13 May 2008 18:08:46 -0700, Green Xenon [Radium] wrote: > Hi:
> The 1st and obvious answer is that half the world would be night and the > other half would be day without change.
In this description the earth still rotates once per year if the earth did stop spinning, the length of the day would be the same as the length of the year. However, I don't beleive that would be a stable condition.
-- . Pete Lynch I have learned from my mistakes and . Marlow ... I am sure I can repeat them exactly . www.pete-lynch.com --- Peter Cooke.
The transfer of angular momentum to all the loose objects (people, trees, soil, oceans etc) would fling it all off at high velocity, removing the entire ecosystem in one fell swoop. The air, if any was left after all that stuff had hurtled through it, would continue to rotate at around 1000 mph (near the equator) for some hours, scouring off anything remaining on the surface.
As for night/day, winter/summer, this isn't dependent solely on the earth's rotation - the earth's orbit around the sun is a factor in both, and the main factor in the seasons.
If you're unsure about the day/night point, hold a football at arms length with the logo pointing towards a distant tree. Now, with the front logo pointing to that tree, move the football to your left. Notice that you're now looking at a difference side of the ball. You're the sun, so the side nearest to you gets the sun.
> Also, wouldn't the one side of the world remain night while the other side > day if the earth's completely stopped moving?
Not based on the stupid scenario that YOU have set! Based on the planet having "...completely stopped moving", it would have a "day-length" equivalent to the length of it's year, with a "night" roughly 6 months long and a day 6 months long.
The Moon is "tide-locked" Moron, meaning that its rotational period (it has one!) and it's revolutional period are identical, causing one side to always face the center of it's orbit (toward Earth).
> The 1st and obvious answer is that half the world would be night and the > other half would be day without change.
> However, what would be the less apparent effects? For example, how would > it affect the ecosystem, the climate, polar ice caps.
> Lets assume that the Earth stops spinning in a manner such that it is > the time [in terms of sun/earth orientation] always 4:30 AM > standard-time in Stamford, Connecticut. Let's also assume that the > Earth's movement stops when it is summer for the southern hemisphere and > winter for the northern hemisphere.
> What would be the effects? That it would be always be summer in > Australia and winter in Canada is self-explanatory.
In uk.sci.astronomy John Kepler <jekep...@amplex.net> wrote:
>> Also, wouldn't the one side of the world remain night while the other side >> day if the earth's completely stopped moving? > Not based on the stupid scenario that YOU have set! Based on the planet > having "...completely stopped moving", it would have a "day-length" > equivalent to the length of it's year, with a "night" roughly 6 months long > and a day 6 months long.
Technically no. If the planet completely stopped moving, then assuming the Moon didn't immediately hit it, we could say goodbye to the Sun, Moon and other solar system planets in pretty short order. It'd be night everywhere in pretty short order and too cold for life a bit after that.
The issue is that the solar system is orbiting the galactic centre. If the Earth stopped, the solar system would continue on without us.
Lather, rinse, repeat for movement of the galaxy, though it'd take a while before we were outside the Milky Way, and I doubt anyone would be a live to see it.
FoFP
-- Perhaps one day he will be considered a free thinker with radical views and deep insight. However today he is seen more as "not all there" -- Comment in the Evening News
>> The 1st and obvious answer is that half the world would be night and >> the other half would be day without change.
>> However, what would be the less apparent effects? For example, how >> would it affect the ecosystem, the climate, polar ice caps.
>> Lets assume that the Earth stops spinning in a manner such that it is >> the time [in terms of sun/earth orientation] always 4:30 AM >> standard-time in Stamford, Connecticut. Let's also assume that the >> Earth's movement stops when it is summer for the southern hemisphere >> and winter for the northern hemisphere.
>> What would be the effects? That it would be always be summer in >> Australia and winter in Canada is self-explanatory.
> The Earth would have to rotate on its axis once a year in order for one > side to always be facing the Sun.
And even then the orbital eccentricity though small would allow some minor seasonal variation at the edge of the terminator.
Depending on whether or not the Earth is not rotating wrt the fixed stars you will either see the same stars in the same places every night, or an annual change as the Earth moves along its orbit with one side always facing the sun if it is not rotating relative to the mean solar position (Mercury is tidally locked to the sun in a 3:2 resonace).
The moon would still orbit the Earth once a month or so and tidal drag would slowly spin up the Earth and very gradually slow the apparent motion of the moon. If the same side of the Earth is always facing the sun then tides would be entirely due to the moon with much less amplitude and less monthly variation.
> The night side would get very, very cold, maybe not cold enough to > freeze nitrogen, but perhaps cold enough to freeze CO2. A huge ice cap > would cover North America much like the Antarctic cap. The day side > would get very hot. Equilibrium temperatures in places like China and > Australia could be as high as 60-70 C. It would probably only be > possible for life to flourish in the "twilight zone".
Antarctic winters in 6 months get down to well below -70C so after a year or so there is a good chance the cold side will be -80C and solid CO2 will freeze.
> The atmosphere would be able to redistribute heat around the globe to > some extent; there would be drastic changes in the sort of weather we > have now, where the patterns and flow are largely driven by Earth's > rotation (Hadley Cells, coriolis effects) and powered by heating effects > of the sun.
Weather would be pretty odd without any rotation. I expect the terminator would bear the brunt of storms transferring energy and water from the hot to the cold side of the planet. After a while I suspect all the precipitable water and most of the CO2 would be stuck on the cold side.
In article <slrng2l6rs.j7h.p...@freyr.local>, Peter Lynch <p...@freyr.local> wrote:
> On Tue, 13 May 2008 18:08:46 -0700, Green Xenon [Radium] wrote: > > Hi:
> > The 1st and obvious answer is that half the world would be night and the > > other half would be day without change.
> In this description the earth still rotates once per year > if the earth did stop spinning, the length of the day would be > the same as the length of the year. However, I don't beleive > that would be a stable condition.
Green Xenon [Radium] wrote: > oriel36 wrote: >> On May 14, 3:08 am, "Green Xenon [Radium]" <gluceg...@excite.com> >> wrote: >>> Hi:
>>> The 1st and obvious answer is that half the world would be night and the >>> other half would be day without change.
>>> However, what would be the less apparent effects? For example, how would >>> it affect the ecosystem, the climate, polar ice caps.
>>> Lets assume that the Earth stops spinning in a manner such that it is >>> the time [in terms of sun/earth orientation] always 4:30 AM >>> standard-time in Stamford, Connecticut. Let's also assume that the >>> Earth's movement stops when it is summer for the southern hemisphere and >>> winter for the northern hemisphere.
>>> What would be the effects? That it would be always be summer in >>> Australia and winter in Canada is self-explanatory.
>>> Thanks,
>>> Radium
>> The seasons would occur as usual even without axial rotation -axial >> rotation generates daylight and darkness and changing orbital >> orientation to the central Sun generates seasonal daylight/darkness >> variations,
>> Standing on the Earth's polar axis is equivalent to a non rotating >> Earth,it stands to reasons that seasonal daylight/darkness variations >> are at the extremes while the effect becomes less variable towards the >> Equator (where no seasonal variations are seen).
>> Through this reasoning,there is a much better way to explain the >> seasons but alas,geodynamics is in a poor state at the moment and >> replacing the pseudo-dynamic of variable axial inclination with a new >> orbital component which causes the daylight/darkness variations may >> take a while.
>> Hope this helps.
> At the poles as well as the equator, the season is pretty much constant. > The former being extremely cold while the latter being extremely hot.
> Also, wouldn't the one side of the world remain night while the other > side day if the earth's completely stopped moving?
If the Earth stopped rotating then you'd still have a cycle of light and dark; you'd have a year-long day.
Matthew Lybanon wrote: > In article <slrng2l6rs.j7h.p...@freyr.local>, > Peter Lynch <p...@freyr.local> wrote:
>> On Tue, 13 May 2008 18:08:46 -0700, Green Xenon [Radium] wrote: >>> Hi:
>>> The 1st and obvious answer is that half the world would be night and the >>> other half would be day without change. >> In this description the earth still rotates once per year >> if the earth did stop spinning, the length of the day would be >> the same as the length of the year. However, I don't beleive >> that would be a stable condition.
> Isn't Mercury in that condition?
No, its gravitationally locked to the sun but has still rotates, and its rotational and orbital periods are not equal (ratio of 3:2 I believe).
> oriel36 wrote: > > On May 14, 3:08 am, "Green Xenon [Radium]" <gluceg...@excite.com> > > wrote: > >> Hi:
> >> The 1st and obvious answer is that half the world would be night and the > >> other half would be day without change.
> >> However, what would be the less apparent effects? For example, how would > >> it affect the ecosystem, the climate, polar ice caps.
> >> Lets assume that the Earth stops spinning in a manner such that it is > >> the time [in terms of sun/earth orientation] always 4:30 AM > >> standard-time in Stamford, Connecticut. Let's also assume that the > >> Earth's movement stops when it is summer for the southern hemisphere and > >> winter for the northern hemisphere.
> >> What would be the effects? That it would be always be summer in > >> Australia and winter in Canada is self-explanatory.
> >> Thanks,
> >> Radium
> > The seasons would occur as usual even without axial rotation -axial > > rotation generates daylight and darkness and changing orbital > > orientation to the central Sun generates seasonal daylight/darkness > > variations,
> > Standing on the Earth's polar axis is equivalent to a non rotating > > Earth,it stands to reasons that seasonal daylight/darkness variations > > are at the extremes while the effect becomes less variable towards the > > Equator (where no seasonal variations are seen).
> > Through this reasoning,there is a much better way to explain the > > seasons but alas,geodynamics is in a poor state at the moment and > > replacing the pseudo-dynamic of variable axial inclination with a new > > orbital component which causes the daylight/darkness variations may > > take a while.
> > Hope this helps.
> At the poles as well as the equator, the season is pretty much constant. > The former being extremely cold while the latter being extremely hot.
A person standing on the North and South pole is physically not axially rotating therefore your interesting question is not hypothetical but an actual condition.With this discovery,you can work through the reasoning where a person at the polar axis experiences variations in daylight/darkness throughout the year while not axially rotating.
It is possible to work with variations in daylight/darkness as they represent the closest gauge to what the Earth is axially and orbitally doing without having to deal with local climate conditions such as heat and cold variations.From this standpoint ,the extreme seasonal variations in daylight/darkness at the polar axis has to come from somewhere and that is when you look at what orbitally occurs as the Earth orbits the Sun.
> Also, wouldn't the one side of the world remain night while the other > side day if the earth's completely stopped moving?- Hide quoted text -
> - Show quoted text -
No,that is what is so fascinating,a location will orbitally turn through 360 degrees with respect to the central Sun thereby creating variations in daylight/darkness .Again,day and night is due to axial rotation but variations in daylight and darkness is due to an orbital component.Use the unique and extreme rotation of Uranus to see what happens as a location orbits the central Sun over the course of a year.as the rotational orientation keeps point to the same point in the sky but orbitally changes through 360 degrees with respect to the central Sun like a crank pin keeps point to the same external point but changes to the central shaft -
Just take your time,rember that there is a point on the Earth surface that does not rotate yet experiences extreme seasonal variations in daylight/darkness and remind everyone else here of the same fact.
This is quite new and you will not find a similar explanation,which means that you will have to discover most of it yourself.Good question btw.
> Green Xenon [Radium] wrote: > > oriel36 wrote: > >> On May 14, 3:08 am, "Green Xenon [Radium]" <gluceg...@excite.com> > >> wrote: > >>> Hi:
> >>> The 1st and obvious answer is that half the world would be night and the > >>> other half would be day without change.
> >>> However, what would be the less apparent effects? For example, how would > >>> it affect the ecosystem, the climate, polar ice caps.
> >>> Lets assume that the Earth stops spinning in a manner such that it is > >>> the time [in terms of sun/earth orientation] always 4:30 AM > >>> standard-time in Stamford, Connecticut. Let's also assume that the > >>> Earth's movement stops when it is summer for the southern hemisphere and > >>> winter for the northern hemisphere.
> >>> What would be the effects? That it would be always be summer in > >>> Australia and winter in Canada is self-explanatory.
> >>> Thanks,
> >>> Radium
> >> The seasons would occur as usual even without axial rotation -axial > >> rotation generates daylight and darkness and changing orbital > >> orientation to the central Sun generates seasonal daylight/darkness > >> variations,
> >> Standing on the Earth's polar axis is equivalent to a non rotating > >> Earth,it stands to reasons that seasonal daylight/darkness variations > >> are at the extremes while the effect becomes less variable towards the > >> Equator (where no seasonal variations are seen).
> >> Through this reasoning,there is a much better way to explain the > >> seasons but alas,geodynamics is in a poor state at the moment and > >> replacing the pseudo-dynamic of variable axial inclination with a new > >> orbital component which causes the daylight/darkness variations may > >> take a while.
> >> Hope this helps.
> > At the poles as well as the equator, the season is pretty much constant. > > The former being extremely cold while the latter being extremely hot.
> > Also, wouldn't the one side of the world remain night while the other > > side day if the earth's completely stopped moving?
> If the Earth stopped rotating then you'd still have a cycle of light and > dark; you'd have a year-long day.
> -- > Abo- Hide quoted text -
> - Show quoted text -
Good !
If the Earth stopped rotating you would lose your 'axial tilt' explanation for seasonal variations in daylight/darkness which occur anyway regardless of axial rotation and orientation.The seasonal change arises from orbital motion along with the global variations in the natural noon cycle when allied with axial rotation and using natural noon as a benchmark.
Very rare that a large modification such as replacing variable axial inclination with a new orbital component is allowed to drift as this insight has,but it is done nonetheless and there for any person who wishes to reason through the details.No person who truly grasps it would dare pretend that the insight is not a huge departure from previous' variable axial tilt' explanations or try to assimilate the insight without regard for the enormous and sometimes painful effort put in.
In article <lybanon-0A3BCF.10402314052...@earthlink.vsrv-sjc.supernews.net>, Matthew Lybanon <lyba...@earthlink.net> wrote:
>> In this description the earth still rotates once per year >> if the earth did stop spinning, the length of the day would be >> the same as the length of the year. However, I don't beleive >> that would be a stable condition. >Isn't Mercury in that condition?
It used to be believed that it was tidally locked in an 88-day orbit so that one side always faced the sun, but this was discovered to be false in the 1960s. Larry Niven among others write a science fiction story with this premise.
Abo wrote: > Green Xenon [Radium] wrote: >> oriel36 wrote: >>> On May 14, 3:08 am, "Green Xenon [Radium]" <gluceg...@excite.com> >>> wrote: >>>> Hi:
>>>> The 1st and obvious answer is that half the world would be night and >>>> the >>>> other half would be day without change.
>>>> However, what would be the less apparent effects? For example, how >>>> would >>>> it affect the ecosystem, the climate, polar ice caps.
>>>> Lets assume that the Earth stops spinning in a manner such that it is >>>> the time [in terms of sun/earth orientation] always 4:30 AM >>>> standard-time in Stamford, Connecticut. Let's also assume that the >>>> Earth's movement stops when it is summer for the southern hemisphere >>>> and >>>> winter for the northern hemisphere.
>>>> What would be the effects? That it would be always be summer in >>>> Australia and winter in Canada is self-explanatory.
>>>> Thanks,
>>>> Radium
>>> The seasons would occur as usual even without axial rotation -axial >>> rotation generates daylight and darkness and changing orbital >>> orientation to the central Sun generates seasonal daylight/darkness >>> variations,
>>> Standing on the Earth's polar axis is equivalent to a non rotating >>> Earth,it stands to reasons that seasonal daylight/darkness variations >>> are at the extremes while the effect becomes less variable towards the >>> Equator (where no seasonal variations are seen).
>>> Through this reasoning,there is a much better way to explain the >>> seasons but alas,geodynamics is in a poor state at the moment and >>> replacing the pseudo-dynamic of variable axial inclination with a new >>> orbital component which causes the daylight/darkness variations may >>> take a while.
>>> Hope this helps.
>> At the poles as well as the equator, the season is pretty much >> constant. The former being extremely cold while the latter being >> extremely hot.
>> Also, wouldn't the one side of the world remain night while the other >> side day if the earth's completely stopped moving?
> If the Earth stopped rotating then you'd still have a cycle of light and > dark; you'd have a year-long day.
Why would there still be a dark/light cycle if the earth stopped rotating? Why would it be a year long?
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