You herd here this too.
- From: Weatherlawyer <Weatherlawyer@xxxxxxxxxxx>
- Date: Mon, 11 Jun 2007 22:06:27 -0700
On May 31, 10:07 pm, Weatherlawyer <Weatherlaw...@xxxxxxxxxxx> wrote:
I remember having a blazing row with a troll on here some time ago.
Wally Anglesea. (What a prawn.) It was about the thing that causes
the sun to heat up. I had to give up on him in the end as he had
shafted himself with his skull and it was too deeply embedded for
reasonable access.
Had he butt-waited a couple of years or five he might have confounded
himself without my help.
Here for the delectation of his betters (and that bloody foolish
Frenchie) is something to tickle your wotsits:
"Scientists have proposed a new mechanism to explain the so-called
ring of fire that is visible around the sun during a full solar
eclipse.
Previously it was thought that the photosphere, the sun's visible
surface, trapped the sound waves that bound around its interior. But
the research (presented at the American Astronomical Society Meeting
in Hawaii) reveals that they can escape into the ring of fire, or
chromosphere as it is more formally known, and even into the corona
The data suggests that sound waves escaping from the sun's interior
create plumes of hot gas, which in turn power the ring of fire.
The chromosphere is a thin region of the sun's atmosphere that is
orders of magnitude hotter than the solar surface. It is particularly
important because it is largely responsible for the deep UV radiation
that produces our ozone layer. It is also very strongly related to
climate variability.
These results help explain why the region is so hot, the researchers
say.
"The sun's interior vibrates with the peal of millions of bells, but
the bells are all on the inside of the building. We have been able to
show how the sound can escape the building and travel a long way using
the magnetic field as a guide," explains Scott McIntosh, a researcher
at Southwest Research Institute in Colorado.
Using observational data from several observatories - space and ground
based - the team was able to construct a model showing how the trapped
sound waves can leak out of the photosphere and into a magnetic
"mould" that forms the chromosphere. The leaks appear to be linked to
strong knots of magnetic field.
"The constantly evolving magnetic field above the solar surface acts
like a doorman opening and closing the door for the waves that are
constantly passing by," said Bart De Pontieu, a researcher at Lockheed
Martin Solar and Astrophysics Lab.
The constantly changing magnetic field makes it possible for wave
motions to pump much more energy into the chromosphere than had
previously been thought, the scientists say."
No idea how accurate or even true the story is but here it is in all
its glory:http://www.theregister.co.uk/2007/05/31/solar_magnetism_hot/
Now then, about the behaviour of variable stars....
Never mind them, their mileage varies into vagaries.
What about this:
"QUAKE CLUSTER AND "TORNADO" AFFECT SOUTHERN CHILE
Written by Patagonia Times Staff
Sunday, 10 June 2007
Mother Nature made her presence known in southern Chile this past
weekend, when wacky weather ruined homes in Region VIII and a cluster
of quakes rattled already uneasy residents in Region XI.
Early Saturday morning, five homes in the Region VIII town of Lota
suffered serious damage after being struck by what residents there
described as a "tornado." Though meteorologists have been unable to
confirm whether the area was in fact struck by a tornado - a very rare
thing in this part of the world - authorities did clock wind gusts of
between 50-70 kilometers-per-hour. The intense storm, which also
produced hail, left 20 people homeless.
Several hours later, residents in the Region XI towns of Puerto Aysén
and Puerto Chacabuco experienced a startling six tremblers in the span
of just 30 minutes. Though all noticeable - registering between three
and four on the Mercalli Scale - the quakes did not cause any
significant damage.
The Saturday morning barrage was certainly nothing new for area
residents, who have endured numerous quakes in recent months. The most
devastating took place on April 21, when 10 people died after a 6.2-
magnitude quake struck the area, causing landslides and a subsequent
mini-tsunami in the Aysén Fjord (ST, April 23).
Scientists believe the prolonged period of seismic activity is likely
being caused by a subterranean magma flow - originated at a point
directly below the Fjord. The magma, which is pressuring a
subterranean tectonic plate, could eventually push its way to the
surface and form a relatively small volcanic cone on the floor of the
Fjord, according to experts (ST, Feb. 14)."
SOURCE: EL MERCURIO
By Patagonia Times Staff
.
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