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Coronal Rain on the Sun
Coronal Rain on the Sun
http://apod.nasa.gov/apod/ap130226.html Explanation: Does it rain on the Sun? Yes, although what falls is not water but extremely hot plasma. An example occurred in mid-July 2012 after an eruption on the Sun that produced both a Coronal Mass Ejection and a moderate solar flare. What was more unusual, however, was what happened next. Plasma in the nearby solar corona was imaged cooling and falling back, a phenomenon known as coronal rain. Because they are electrically charged, electrons, protons, and ions in the rain were gracefully channeled along existing magnetic loops near the Sun's surface, making the scene appear as a surreal three-dimensional sourceless waterfall. The resulting surprisingly-serene spectacle is shown in ultraviolet light and highlights matter glowing at a temperature of about 50,000 Kelvin. Each second in the above time lapse video takes about 6 minutes in real time, so that the entire coronal rain sequence lasted about 10 hours. |
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Coronal Rain on the Sun
On Wednesday, May 21, 2014 2:10:37 PM UTC+1, Sam Wormley wrote:
Coronal Rain on the Sun http://apod.nasa.gov/apod/ap130226.html Explanation: Does it rain on the Sun? There is a better use of the Sun's plasma by asking a different question : Do all rotating celestial bodies with viscous compositions rotate as a unit or display an uneven rotational gradient between Equator and poles ?. The point of the question is to draw down differential rotation in this setting as a mechanism for plate tectonics and the uneven spherical shape of the Earth and look for clues on the surface crust and especially oceanic crust to see this mechanism in action. I believe the great clue is the Mid Atlantic Ridge and the symmetrical generation of crust off that great divide that runs North to South in parallel with the rotational characteristics of the Earth and that lovely 'S' feature which suggests a lag/advance mechanism as zonal bands of fluid rotate at different speeds from a maximum speed at the Equator. http://upload.wikimedia.org/wikipedi...che_Trench.jpg The Romanche Trench on the Equator is a giveaway of a hemispherical split organized around rotational dynamics of the fluid interior. Like the Earth's dynamics, the geocentric astronomers considered arguments for the motions of the Earth but just couldn't find the right ones until Copernicus showed up and likewise,you may throw the kitchen sink at rotation and plate tectonics as many have done recently but here too the arguments have to be reasonable and in line with expectations.The added bonus is that the mechanism for crustal evolution fits neatly in with the spherical deviation of the planet. Fluid dynamics on an astronomical scale is pretty much unused presently and especially the lack of research into the Earth's fluid interior which has been stuck with a stationary Earth 'convection cells' for too long. It may be fine to entertain students with solar rain rather than call them solar eruptions and what must be enormous electromagnetic forces orchestrating the whole process however the same students would enjoy the rule of differential rotation in all celestial bodies where rotation is present and especially the Earth. |
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Coronal Rain on the Sun
"oriel36" wrote in message ... I believe the great clue is the Mid Atlantic Ridge and the symmetrical generation of crust off that great divide that runs North to South in parallel with the rotational characteristics of the Earth and that lovely 'S' feature which suggests a lag/advance mechanism as zonal bands of fluid rotate at different speeds from a maximum speed at the Equator. ================================================== ================== The ugly imbecile that doesn't accept the Moon rotates on its own axis imagines a max speed at the equator would produce an "S" curve instead of a lovely Sigma or beautiful "3" curve. -- Lord Androcles, Zeroth Earl of Medway |
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Coronal Rain on the Sun
On Wednesday, May 21, 2014 6:10:37 AM UTC-7, Sam Wormley wrote:
Coronal Rain on the Sun http://apod.nasa.gov/apod/ap130226.html Explanation: Does it rain on the Sun? Yes, although what falls is not water but extremely hot plasma. An example occurred in mid-July 2012 after an eruption on the Sun that produced both a Coronal Mass Ejection and a moderate solar flare. What was more unusual, however, was what happened next. Plasma in the nearby solar corona was imaged cooling and falling back, a phenomenon known as coronal rain. Because they are electrically charged, electrons, protons, and ions in the rain were gracefully channeled along existing magnetic loops near the Sun's surface, making the scene appear as a surreal three-dimensional sourceless waterfall. The resulting surprisingly-serene spectacle is shown in ultraviolet light and highlights matter glowing at a temperature of about 50,000 Kelvin. Each second in the above time lapse video takes about 6 minutes in real time, so that the entire coronal rain sequence lasted about 10 hours. Tenfold hotter than the cool dark areas of the photosphere is impressive. Too much metals inside the sun? |
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