Gravity/orbital simulator
Posted on 03/26/2013 3:29:15 PM PDT by LibWhacker
There’s an episode of “The Universe” about this theory that’s pretty good.
I’m sure right now there’s some RINO in Congress thinking that they should write up an amnesty for undocumented planetary immigrants.
That would be cool if it turned out Immanuel Velikovsky was right after all.
I’ve never read him, but I have a feeling they’d still rush to pick him apart, despite these “new” theories.
I think I’ve seen it. Is it a couple of years old? Anyhoo, love those Sci Channel programs! The only one I’ve ever been able to get my wife interested in was Brian Cox’s “Wonders of the Universe.” She really like those and was properly awed. Don’t look a gift horse in the mouth!
Very cool, thx! I have a feeling I’m going to be wasting even more time on the computer for the next few days than usual!
No way! Meteor showers are caused by anticipatory CO2 levels at least 3.8 billion years in the future.
More likely that Tom Van Flandern was right ...
Cool, I bookmarked it. Have you considered enhancing the code to show 3D orbitals (rather than all in the same ecliptic)?
Here’s one I used to play with.
http://phet.colorado.edu/sims/my-solar-system/my-solar-system_en.html
But I like yours even better.
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Stellar encounters as the origin of distant Solar System objects in highly eccentric orbits
http://www.freerepublic.com/focus/chat/1293171/posts?page=28#28
New insights into composition of giant planets
http://www.freerepublic.com/focus/chat/1722070/posts
Giant planet ejected from the solar system
http://www.freerepublic.com/focus/chat/2805943/posts
When straying Jupiter went on the pull
http://www.freerepublic.com/focus/chat/2846719/posts
Doesn’t explain why one of those planets is rotating on its side......
That’s a mystery which may defy solution until someone figures out time travel. I mean, we’re all time travellers, but time travel in the opposite direction. :’) The reason for the lack of consensus on the Uranian tipped axis is that the Uranian moon system is the most normal of any in the Solar System, at least among the four known gas giants. Almost any mechanism devised to explain Uranus’ tipped axis trips over the normality of the Uranian moons.
If there’s little or no core in Uranus (it’s the second least dense of the planets, Saturn’s the least dense) it’s at least possible that a slow migration of the planet’s axis, analogous to a spinning top, and due to an irregularly shaped rocky core (or a split core, that is, *two* rocky cores), may account for the change in the axial tilt without screwing too much with the moons. And of course, we’re only seeing the moons now — if they’re ejections or captures by Uranus, the migration of the Uranian axis may have been what normalized them to their current state.
Van Flandern’s EPH might be looked upon as one explanatory model, except for the fact that there’s no explanation for the explanation. :’)
http://www.universetoday.com/18879/density-of-uranus/
http://nssdc.gsfc.nasa.gov/planetary/factsheet/uranusfact.html
http://www.universetoday.com/21618/density-of-neptune/
http://nssdc.gsfc.nasa.gov/planetary/factsheet/neptunefact.html
http://www.universetoday.com/15322/density-of-saturn/
http://nssdc.gsfc.nasa.gov/planetary/factsheet/saturnfact.html
http://www.universetoday.com/15116/density-of-jupiter/
http://nssdc.gsfc.nasa.gov/planetary/factsheet/jupiterfact.html
Uranus and Neptune - Origin
Sky&Tel 99, 24 (2000)
http://www.metaresearch.org/publications/notes/DetailResponse.asp
These two ice-giant planets would take longer than the age of the solar system to form at their present distances from the Sun. So they must have formed closer and migrated outward. The suggested process is gravitational encounters with Jupiter and Saturn, and subsequent chaotic variations due to interactions with small planetesimals, before their orbits stabilized in their current locations. No gas drag effect of the solar nebula was considered.
Tom Van Flandern comments:
This violates the Poincare theorem forbidding secular perturbations in semi-major axis, and conservation of angular momentum, among other problems. If only Velikovsky had known how easy it was to get a planet into a circular orbit! :-)
Uranus and Neptune - Formation of rings by collisional fragmentation
. JGR Planets 105, 17,589-17,599 (2000)
http://www.metaresearch.org/publications/notes/DetailResponse.asp
The narrow Uranian and Neptunian rings cannot be older than 600 million years because of collisional disruption from comets and Kuiper belt asteroids. They are probably formed by collisions with small satellites.
Tom Van Flandern comments:
One wonders why those collisions did not occur within the solar system’s first 600 million years, unless these colliding bodies originated more recently themselves from exploded planets.
Everybody knows SUVs cause meteor showers....
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