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Old October 9th 07, 11:35 PM posted to alt.global-warming,sci.geo.meteorology
columbiaaccidentinvestigation columbiaaccidentinvestigation is offline
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Default Yet Another Simplified Explanation of CO2 as a Greenhouse Gas

On sept 9 2:12 pm davee wrote in response to what a fools questions to
me below: "Venus does not have moon to spin it like Earth, there are
no competing differential forces so yes it has a dark side just like
our moon (although it may be illuminated at some time due to
rotation)"

On Oct 3, 1:12 pm, Whata Fool wrote: "The questions
you quoted have interesting answers, why didn't you answer them for
the benefit of full disclosure. Is the reason you don't use a
newsreader is having an excuse to type in the quoted text with
alterations?"

But what a fool had previously stated the following on oct 2 5:11
pm:"Does Venus really have a dark side where it is night time, and if
so, how long is the daylight, about 200 days? How many temperature
probes have there been, were they on the dark side?"


Now fool was basically asking me to provide a source, and i did, which
goes straight to the point, which is that venus has an atmosphere that
traps a lot of the suns energy, making the surface very hot around the
entire planet. "It appears that the surface temperature ranges from
about 820 degrees to nearly 900 degrees F. The average surface
temperature is 847 degrees F., hot enough to melt lead." (see below)
http://www.crh.noaa.gov/fsd/astro/venus.php
"NOAA's National Weather Service Weather Forecast Office
Sioux Falls, SD
VENUS
Venus is the second closest planet to our Sun at an average distance
67 million miles. It revolves around the Sun every 225 Earth days,
but its rotation takes 243 Earth days. One other interesting note is
that Venus rotates clockwise, the only planet in our solar system to
do so, and contrary to its own orbit around the Sun. Research suggests
that the "backward" rotation is caused by tides which are raised in
the thick atmosphere by the Sun, and with friction interaction between
the atmosphere and planet itself. It is hypothesized that these
interactions caused Venus's rotation to slow, stop, and then reverse.
This is somewhat similar to what is happening here on Earth, as our
Moon's pull on our oceans causes tides whose subsequent friction is
gradually slowing Earth's rotation. Other recent research suggests
that Venus' clockwise rotation was produced
by an extreme impact from a large body early in Venus' development, 4
to 5 billion years ago (similar to how a major impact created our Moon
from Earth). This large impact on Venus may have resulted in the
planet reversing its rotation if the blow was from the opposite
direction of its rotation. Venus is one of only three planets in our
solar system which has a perfect circular sphere (the other two being
Mercury and Pluto).
Atmosphere and Weather: Venus has a thick atmosphere made up almost
entirely of carbon dioxide. It also exerts a pressure 92 times higher
than the earth's, resulting in a pressure-cooker environment. Venus
is covered by dense clouds made up primarily of sulfuric acid. The
clouds are so thick it is impossible to see its surface without using
sophisticated radar systems. Imaging radar systems aboard the NASA
space probes Pioneer (1978) and Magellan (1990-1994) produced a map of
the Venusian surface. These systems also detected lightning,
hypothesizing that the lightning is generated in thick clouds around
35 miles above the surface. The surface is desolate and continent
like features exist complete with canyons, mountains, plains and
waterless oceans. The Venusian surface is pock-marked with a low
number of large craters along with volcanic rock and lava flows. It
appears that over 85% of the surface is covered by volcanic rock with
giant lava flows having flooded areas producing the plains. Research
suggests that some of these volcanoes have erupted within the past few
centuries and there is evidence that the entire planet was
"resurfaced" three to five hundred million years ago. The incident
visible and infrared spectrum from the Sun are major contributors to
the extremely hot temperatures on Venus, with the dense, carbon
dioxide atmosphere not letting the infrared rays escape back into
space. These temperatures resemble something more of a raging fire
due to an uncontrolled greenhouse effect which more than doubles the
temperature on the planet's surface. It appears that the surface
temperature ranges from about 820 degrees to nearly 900 degrees F.
The average surface temperature is 847 degrees F., hot enough to melt
lead. No wonder the ocean basins are "dry". At these temperatures
any water would evaporate nearly instantaneously.
However research from NASA's Ames Research Center suggests that liquid
water in the oceans and seas were prevalent on Venus for hundreds of
millions of years in earlier times. Due to Venus' immense pressure,
water could have existed with temperatures as warm as 200 to 300
degrees F. But that is still likely too hot to have sustained any
primitive life forms. As Venus continued to warm, any liquid water
was boiled off into the atmosphere. The Pioneer Spacecraft in December
1978 revealed very high winds aloft
in its atmosphere, approaching speeds of 200 mph. Along with the
thick cloud cover, this could explain why the night side of the planet
has temperatures nearly the same as the day side, as strong winds
aloft transfer heat around the globe. However it appears that the
surface winds are very light. In short, Venus is by far the hottest
planet in our solar system, with a very minimal diurnal temperature
spread."