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Old February 21st 04, 11:04 PM
Bill Oertell
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I believe the prevailing theory is that the whole planet coalesced out of the
solar gas cloud, and as the planet's mass increased, compressional heating
started, which caused the constituent components to melt, with the heavier
elements settling towards the center of the planet. There was also heat created
from the impact of infalling material. Then a mars sized body came along and
added a lot more heat and a bunch more material.

"G=EMC^2 Glazier" wrote in message
...
What came first in creating a planet? Was it the solid core,or the gas?
The solid core would have more mass density,and that means stronger
force of gravity to capture,and keep a gas from radiating out into
space. Or did the gas that had dust in it settle down in the middle
of the cloud and create a core to revolve around? Its almost like what
came first the chicken or the egg.(chicken being the gas)
Jupiter has so dense an atmosphere it begs this question "What has the
greater amount of particles its atmosphere or its core.?" Bert PS
Does its core revolve at the exact same rate as its atmosphere? If they
don't I could create a theory as to Jupiters strong global magnetic
field