[Vo]:Worry About Wandering Planets?
I have been enjoying the Planets simulation on my Linux system and noticed something that gave me a bit of concern. Perhaps some of my fellow vorts have information concerning the issue that I am about to mention which sheds light upon the real danger. When I play with a system that contains a large multitude of planet like objects generated randomly within a small region of space I see that in every case many of the objects are ejected from the region at a high rate of speed into open space. I am not too confident that the program does a great simulation of the real process since it operates in 2 dimensions only while the real systems use 3. My concern is that this process would typically send a large number of dangerous mass objects into the region between stars and as a consequence some in our direction.The ones that cross our orbit could lead to a catastrophe if they were to collide with the earth. The objects that do not collide would likely continue on their paths through space and out the other side of our solar system. Is there reason to consider this situation as dangerous and is there evidence that this has happened before? Today, most of the comets and asteroids are considered in orbit around our sun, but is that the only condition? How close to earth would an asteroid need to pass before it is detected by our systems? And, if the size were large enough to cause an extinction level event, would we see it before it was too late? It is fairly well established that the history of earth has included many extinction events and they have generally been assumed to be from objects in orbit around the sun. Does anyone know of any proof that none from way out there has impacted us? I recall reading about a period of earth's history where a large quantity of collisions came after the earth was similar to today. This happened when the earth was millions if not a billion years old and since the sun was formed along with numerous brothers, perhaps some of the ejections from it's twins caused the event. The delay would have give them enough time to reach us from adjacent star systems if traveling at a high velocity. Do we have reason to worry? Dave
Re: [Vo]:Worry About Wandering Planets?
yes On Thu, Dec 19, 2013 at 4:48 PM, David Roberson dlrober...@aol.com wrote: I have been enjoying the* Planets* simulation on my Linux system and noticed something that gave me a bit of concern. Perhaps some of my fellow vorts have information concerning the issue that I am about to mention which sheds light upon the real danger. When I play with a system that contains a large multitude of planet like objects generated randomly within a small region of space I see that in every case many of the objects are ejected from the region at a high rate of speed into open space. I am not too confident that the program does a great simulation of the real process since it operates in 2 dimensions only while the real systems use 3. My concern is that this process would typically send a large number of dangerous mass objects into the region between stars and as a consequence some in our direction.The ones that cross our orbit could lead to a catastrophe if they were to collide with the earth. The objects that do not collide would likely continue on their paths through space and out the other side of our solar system. Is there reason to consider this situation as dangerous and is there evidence that this has happened before? Today, most of the comets and asteroids are considered in orbit around our sun, but is that the only condition? How close to earth would an asteroid need to pass before it is detected by our systems? And, if the size were large enough to cause an extinction level event, would we see it before it was too late? It is fairly well established that the history of earth has included many extinction events and they have generally been assumed to be from objects in orbit around the sun. Does anyone know of any proof that none from way out there has impacted us? I recall reading about a period of earth's history where a large quantity of collisions came after the earth was similar to today. This happened when the earth was millions if not a billion years old and since the sun was formed along with numerous brothers, perhaps some of the ejections from it's twins caused the event. The delay would have give them enough time to reach us from adjacent star systems if traveling at a high velocity. Do we have reason to worry? Dave
Re: [Vo]:Worry About Wandering Planets?
Double yes. Best get our DNA spread far and wide as soon as possible
On Thursday, December 19, 2013, Axil Axil wrote:
yes
On Thu, Dec 19, 2013 at 4:48 PM, David Roberson
dlrober...@aol.comjavascript:_e({}, 'cvml', 'dlrober...@aol.com');
wrote:
I have been enjoying the* Planets* simulation on my Linux system and
noticed something that gave me a bit of concern. Perhaps some of my
fellow vorts have information concerning the issue that I am about to
mention which sheds light upon the real danger.
When I play with a system that contains a large multitude of planet like
objects generated randomly within a small region of space I see that in
every case many of the objects are ejected from the region at a high rate
of speed into open space. I am not too confident that the program does a
great simulation of the real process since it operates in 2 dimensions only
while the real systems use 3.
My concern is that this process would typically send a large number of
dangerous mass objects into the region between stars and as a consequence
some in our direction.The ones that cross our orbit could lead to a
catastrophe if they were to collide with the earth. The objects that do
not collide would likely continue on their paths through space and out the
other side of our solar system.
Is there reason to consider this situation as dangerous and is there
evidence that this has happened before? Today, most of the comets and
asteroids are considered in orbit around our sun, but is that the only
condition?
How close to earth would an asteroid need to pass before it is detected
by our systems? And, if the size were large enough to cause an extinction
level event, would we see it before it was too late?
It is fairly well established that the history of earth has included many
extinction events and they have generally been assumed to be from objects
in orbit around the sun. Does anyone know of any proof that none from way
out there has impacted us?
I recall reading about a period of earth's history where a large quantity
of collisions came after the earth was similar to today. This happened
when the earth was millions if not a billion years old and since the sun
was formed along with numerous brothers, perhaps some of the ejections from
it's twins caused the event. The delay would have give them enough time to
reach us from adjacent star systems if traveling at a high velocity.
Do we have reason to worry?
Dave
Re: [Vo]:Worry About Wandering Planets?
Previous research has predicted there might be 100,000 times more rogue planets in the Milky Way than stars. Read more: http://www.universetoday.com/104210/rogue-planets-could-form-on-their-own-in-interstellar-space/#ixzz2nxcPwnsI On Thu, Dec 19, 2013 at 4:59 PM, ChemE Stewart cheme...@gmail.com wrote: Double yes. Best get our DNA spread far and wide as soon as possible On Thursday, December 19, 2013, Axil Axil wrote: yes On Thu, Dec 19, 2013 at 4:48 PM, David Roberson dlrober...@aol.comwrote: I have been enjoying the* Planets* simulation on my Linux system and noticed something that gave me a bit of concern. Perhaps some of my fellow vorts have information concerning the issue that I am about to mention which sheds light upon the real danger. When I play with a system that contains a large multitude of planet like objects generated randomly within a small region of space I see that in every case many of the objects are ejected from the region at a high rate of speed into open space. I am not too confident that the program does a great simulation of the real process since it operates in 2 dimensions only while the real systems use 3. My concern is that this process would typically send a large number of dangerous mass objects into the region between stars and as a consequence some in our direction.The ones that cross our orbit could lead to a catastrophe if they were to collide with the earth. The objects that do not collide would likely continue on their paths through space and out the other side of our solar system. Is there reason to consider this situation as dangerous and is there evidence that this has happened before? Today, most of the comets and asteroids are considered in orbit around our sun, but is that the only condition? How close to earth would an asteroid need to pass before it is detected by our systems? And, if the size were large enough to cause an extinction level event, would we see it before it was too late? It is fairly well established that the history of earth has included many extinction events and they have generally been assumed to be from objects in orbit around the sun. Does anyone know of any proof that none from way out there has impacted us? I recall reading about a period of earth's history where a large quantity of collisions came after the earth was similar to today. This happened when the earth was millions if not a billion years old and since the sun was formed along with numerous brothers, perhaps some of the ejections from it's twins caused the event. The delay would have give them enough time to reach us from adjacent star systems if traveling at a high velocity. Do we have reason to worry? Dave
Re: [Vo]:Worry About Wandering Planets?
Yipes! Do you feel lucky? Dave -Original Message- From: Axil Axil janap...@gmail.com To: vortex-l vortex-l@eskimo.com Sent: Thu, Dec 19, 2013 4:59 pm Subject: Re: [Vo]:Worry About Wandering Planets? Previous research has predicted there might be 100,000 times more rogue planets in the Milky Way than stars. Read more: http://www.universetoday.com/104210/rogue-planets-could-form-on-their-own-in-interstellar-space/#ixzz2nxcPwnsI On Thu, Dec 19, 2013 at 4:59 PM, ChemE Stewart cheme...@gmail.com wrote: Double yes. Best get our DNA spread far and wide as soon as possible On Thursday, December 19, 2013, Axil Axil wrote: yes On Thu, Dec 19, 2013 at 4:48 PM, David Roberson dlrober...@aol.com wrote: I have been enjoying the Planets simulation on my Linux system and noticed something that gave me a bit of concern. Perhaps some of my fellow vorts have information concerning the issue that I am about to mention which sheds light upon the real danger. When I play with a system that contains a large multitude of planet like objects generated randomly within a small region of space I see that in every case many of the objects are ejected from the region at a high rate of speed into open space. I am not too confident that the program does a great simulation of the real process since it operates in 2 dimensions only while the real systems use 3. My concern is that this process would typically send a large number of dangerous mass objects into the region between stars and as a consequence some in our direction.The ones that cross our orbit could lead to a catastrophe if they were to collide with the earth. The objects that do not collide would likely continue on their paths through space and out the other side of our solar system. Is there reason to consider this situation as dangerous and is there evidence that this has happened before? Today, most of the comets and asteroids are considered in orbit around our sun, but is that the only condition? How close to earth would an asteroid need to pass before it is detected by our systems? And, if the size were large enough to cause an extinction level event, would we see it before it was too late? It is fairly well established that the history of earth has included many extinction events and they have generally been assumed to be from objects in orbit around the sun. Does anyone know of any proof that none from way out there has impacted us? I recall reading about a period of earth's history where a large quantity of collisions came after the earth was similar to today. This happened when the earth was millions if not a billion years old and since the sun was formed along with numerous brothers, perhaps some of the ejections from it's twins caused the event. The delay would have give them enough time to reach us from adjacent star systems if traveling at a high velocity. Do we have reason to worry? Dave
Re: [Vo]:Worry About Wandering Planets?
The kind of numeric simulation you describe almost certainly is not conserving energy due to the failure to appropriately handle close perigees with tiny time increments in the numeric approximation. That's the main reason why these things produce high speed projectiles. On Thu, Dec 19, 2013 at 3:48 PM, David Roberson dlrober...@aol.com wrote: I have been enjoying the* Planets* simulation on my Linux system and noticed something that gave me a bit of concern. Perhaps some of my fellow vorts have information concerning the issue that I am about to mention which sheds light upon the real danger. When I play with a system that contains a large multitude of planet like objects generated randomly within a small region of space I see that in every case many of the objects are ejected from the region at a high rate of speed into open space. I am not too confident that the program does a great simulation of the real process since it operates in 2 dimensions only while the real systems use 3. My concern is that this process would typically send a large number of dangerous mass objects into the region between stars and as a consequence some in our direction.The ones that cross our orbit could lead to a catastrophe if they were to collide with the earth. The objects that do not collide would likely continue on their paths through space and out the other side of our solar system. Is there reason to consider this situation as dangerous and is there evidence that this has happened before? Today, most of the comets and asteroids are considered in orbit around our sun, but is that the only condition? How close to earth would an asteroid need to pass before it is detected by our systems? And, if the size were large enough to cause an extinction level event, would we see it before it was too late? It is fairly well established that the history of earth has included many extinction events and they have generally been assumed to be from objects in orbit around the sun. Does anyone know of any proof that none from way out there has impacted us? I recall reading about a period of earth's history where a large quantity of collisions came after the earth was similar to today. This happened when the earth was millions if not a billion years old and since the sun was formed along with numerous brothers, perhaps some of the ejections from it's twins caused the event. The delay would have give them enough time to reach us from adjacent star systems if traveling at a high velocity. Do we have reason to worry? Dave
Re: [Vo]:Worry About Wandering Planets?
David Roberson dlrober...@aol.com wrote: Yipes! Do you feel lucky? Well . . . Do ya, punk? - Jed
Re: [Vo]:Worry About Wandering Planets?
That might be the case, but the sling shot effect is used by NASA all the time to sling probes into the far off regions. And the simulation appears to show that one of the interacting objects has its velocity and hence orbital path greatly disturbed by the interaction. I suspect it is not totally rubbish. Dave -Original Message- From: James Bowery jabow...@gmail.com To: vortex-l vortex-l@eskimo.com Sent: Thu, Dec 19, 2013 5:10 pm Subject: Re: [Vo]:Worry About Wandering Planets? The kind of numeric simulation you describe almost certainly is not conserving energy due to the failure to appropriately handle close perigees with tiny time increments in the numeric approximation. That's the main reason why these things produce high speed projectiles. On Thu, Dec 19, 2013 at 3:48 PM, David Roberson dlrober...@aol.com wrote: I have been enjoying the Planets simulation on my Linux system and noticed something that gave me a bit of concern. Perhaps some of my fellow vorts have information concerning the issue that I am about to mention which sheds light upon the real danger. When I play with a system that contains a large multitude of planet like objects generated randomly within a small region of space I see that in every case many of the objects are ejected from the region at a high rate of speed into open space. I am not too confident that the program does a great simulation of the real process since it operates in 2 dimensions only while the real systems use 3. My concern is that this process would typically send a large number of dangerous mass objects into the region between stars and as a consequence some in our direction.The ones that cross our orbit could lead to a catastrophe if they were to collide with the earth. The objects that do not collide would likely continue on their paths through space and out the other side of our solar system. Is there reason to consider this situation as dangerous and is there evidence that this has happened before? Today, most of the comets and asteroids are considered in orbit around our sun, but is that the only condition? How close to earth would an asteroid need to pass before it is detected by our systems? And, if the size were large enough to cause an extinction level event, would we see it before it was too late? It is fairly well established that the history of earth has included many extinction events and they have generally been assumed to be from objects in orbit around the sun. Does anyone know of any proof that none from way out there has impacted us? I recall reading about a period of earth's history where a large quantity of collisions came after the earth was similar to today. This happened when the earth was millions if not a billion years old and since the sun was formed along with numerous brothers, perhaps some of the ejections from it's twins caused the event. The delay would have give them enough time to reach us from adjacent star systems if traveling at a high velocity. Do we have reason to worry? Dave
Re: [Vo]:Worry About Wandering Planets?
So far so good! :-) Dave -Original Message- From: Jed Rothwell jedrothw...@gmail.com To: vortex-l vortex-l@eskimo.com Sent: Thu, Dec 19, 2013 5:15 pm Subject: Re: [Vo]:Worry About Wandering Planets? David Roberson dlrober...@aol.com wrote: Yipes! Do you feel lucky? Well . . . Do ya, punk? - Jed
