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Evidence for Supernovas Near Earth
I found this article to be fascinating...
http://science.nasa.gov/science-news...g_localbubble/ "August 26, 2014: Once every 50 years, more or less, a massive star explodes somewhere in the Milky Way. The resulting blast is terrifyingly powerful, pumping out more energy in a split second than the sun emits in a million years. At its peak, a supernova can outshine the entire Milky Way. It seems obvious that you wouldn't want a supernova exploding near Earth. Yet there is growing evidence that one did -- actually, more than one. About 10 million years ago, a nearby cluster of supernovas went off like popcorn. We know because the explosions blew an enormous bubble in the interstellar medium, and we're inside it." \Paul A |
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Evidence for Supernovas Near Earth
On Tuesday, August 26, 2014 8:31:43 PM UTC-7, palsing wrote:
I found this article to be fascinating... http://science.nasa.gov/science-news...g_localbubble/ "August 26, 2014: Once every 50 years, more or less, a massive star explodes somewhere in the Milky Way. The resulting blast is terrifyingly powerful, pumping out more energy in a split second than the sun emits in a million years. At its peak, a supernova can outshine the entire Milky Way. It seems obvious that you wouldn't want a supernova exploding near Earth. Yet there is growing evidence that one did -- actually, more than one. About 10 million years ago, a nearby cluster of supernovas went off like popcorn. We know because the explosions blew an enormous bubble in the interstellar medium, and we're inside it." \Paul A Just Sirius(b) becoming a white dwarf was an event worthy of getting some attention. In fact, the nebula birth of those Sirius stars must have been an impressive era. |
#3
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Evidence for Supernovas Near Earth
"palsing" wrote in message ... I found this article to be fascinating... http://science.nasa.gov/science-news...g_localbubble/ "August 26, 2014: Once every 50 years, more or less, a massive star explodes somewhere in the Milky Way. The resulting blast is terrifyingly powerful, pumping out more energy in a split second than the sun emits in a million years. At its peak, a supernova can outshine the entire Milky Way. It seems obvious that you wouldn't want a supernova exploding near Earth. Yet there is growing evidence that one did -- actually, more than one. About 10 million years ago, a nearby cluster of supernovas went off like popcorn. We know because the explosions blew an enormous bubble in the interstellar medium, and we're inside it." \Paul A ================================================== == I found this astronomical fairy tale equally fascinating... For a time in the late 19th and early 20th centuries, it was erroneously believed that there were canals on Mars. These were a network of long straight lines in the equatorial regions from 60° N. to 60° S. Lat. on the planet Mars. They were first described by the Italian astronomer Giovanni Schiaparelli during the opposition of 1877, and confirmed by later observers. Schiaparelli called these canali, which was translated into English as "canals". The Irish astronomer Charles E. Burton made some of the earliest drawings of straight-line features on Mars, although his drawings did not match Schiaparelli's. By the early 20th century, improved astronomical observations revealed the "canals" to be an optical illusion, and modern high resolution mapping of the Martian surface by spacecraft shows no such features. -- The Reverend Lord Androcles. REWARD £500 I'm not the government, if I were it would £20,000,000, but I am offering £500 for the head of the murderer of James Foley, on a spike, mounted on London Bridge as we would have done in medieval times. Add your own contribution and spread the word. It's eye for an eye, tooth for a tooth, head for a head, barbarism for barbarism. |
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Evidence for Supernovas Near Earth
On Wednesday, August 27, 2014 4:31:43 AM UTC+1, palsing wrote:
I found this article to be fascinating... http://science.nasa.gov/science-news...g_localbubble/ "August 26, 2014: Once every 50 years, more or less, a massive star explodes somewhere in the Milky Way. The resulting blast is terrifyingly powerful, pumping out more energy in a split second than the sun emits in a million years. At its peak, a supernova can outshine the entire Milky Way. It seems obvious that you wouldn't want a supernova exploding near Earth. Yet there is growing evidence that one did -- actually, more than one. About 10 million years ago, a nearby cluster of supernovas went off like popcorn. We know because the explosions blew an enormous bubble in the interstellar medium, and we're inside it." \Paul A No coherent picture whatsoever and nothing to recommend it despite some excellent work previously but such is this vapid era of undoing advances in understanding. Twenty four years ago I put together a narrative where certain supernova represent the birth of a solar system rather than the death of a star insofar as the supernova event represents a transition phase in the life cycle of a star where it becomes more compact while divesting itself of that material which constitutes the planets,moon and all within it including the material of our own bodies. It all has a geometry to it - http://www.spacetelescope.org/static...carboni_02.jpg This type of approach doesn't invite the childish or those who simply conjure up any assertion that enters their head with no linkage to stellar evolution nor the clues left within the solar system to the origins of material. There is something wonderful looking out at our parent star with the knowledge that it once held the materials that make up Jupiter,Venus and more importantly the Earth . This view takes into account that the planets move from liquid to gas the further the distance from the Sun but with these empirical jokers now introducing 'blobs' it looks like the one productive area of study within the past one hundred years will go the same way as the rest of astronomy. |
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Evidence for Supernovas Near Earth
On Wednesday, August 27, 2014 12:39:31 AM UTC-6, oriel36 wrote:
It all has a geometry to it - It may have a geometry to it, but the mechanism of thermonuclear fusion is well understood (practical demonstrations of, at least, _uncontrolled_ fusion have taken place in such places as the Bikini Atoll), and study of the populations of stars in other galaxies and globular clusters and so on have confirmed the validity of the Hertzsprung-Russell diagram as a tool for understanding stellar development. Why should the people who know very well what they're doing stop to pay attention to the eccentric theories of someone without demonstrated expertise out there in the wilderness? John Savard |
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Evidence for Supernovas Near Earth
On Wednesday, August 27, 2014 4:29:10 AM UTC-7, Quadibloc wrote:
On Wednesday, August 27, 2014 12:39:31 AM UTC-6, oriel36 wrote: It all has a geometry to it - It may have a geometry to it, but the mechanism of thermonuclear fusion is well understood (practical demonstrations of, at least, _uncontrolled_ fusion have taken place in such places as the Bikini Atoll), and study of the populations of stars in other galaxies and globular clusters and so on have confirmed the validity of the Hertzsprung-Russell diagram as a tool for understanding stellar development. Why should the people who know very well what they're doing stop to pay attention to the eccentric theories of someone without demonstrated expertise out there in the wilderness? John Savard Whenever clowns get together, they too pay no attention as to anyone in the audience, because they are crowd pleasers and not the least bit interested in what any one individual thinks or has to say. |
#7
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Evidence for Supernovas Near Earth
oriel36:
... Quadibloc: Why should the people who know very well what they're doing stop to pay attention to the eccentric theories of someone without demonstrated expertise out there in the wilderness? You're the one who is stopping and paying attention, so you tell /me/ why you do it. -- I agree with almost everything that you have said and almost everything that you will say in your entire life. usenet *at* davidillig dawt cawm |
#8
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Evidence for Supernovas Near Earth
Evolutionary sciences are the most intricate of all including stellar evolutionary processes insofar as the star itself is moving through space and this influences what is and is not possible.
For instance, these poor folk have the solar system moving through supernova remnants and then conclude that this had an effect on the Earth's climate in the past notwithstanding that everything in the galaxy is more or less moving around the galactic center in tandem - http://apod.nasa.gov/apod/ap000412.html I came across this type of poor thinking in plate tectonics where the surface is meant to move over stationary 'hotspots' notwithstanding that the idea of thermal convection of the fluid interior was considered to be moving the crust - http://geology.com/usgs/hawaiian-hot...n-hot-spot.jpg In other words, evolutionary processes such as plate tectonics,stellar evolution or galactic evolution without taking into account dynamics is a sterile affair insofar as dynamics are a common feature of all causes/effects and processes. The idea that certain supernova events represent a transition phase which gives rise to a solar system rather than the death of a star should be appealing rather than looking around the galaxy for another star to do the job of supplying material for the planets including our own bodies. I do not mind if this view is in its infancy but already the geometry of that transition phase is there for all to see. |
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Evidence for Supernovas Near Earth
"oriel36" wrote in message ... I came across this type of poor thinking in plate tectonics where the surface is meant to move over stationary 'hotspots' notwithstanding that the idea of thermal convection of the fluid interior was considered to be moving the crust - ================================================== ==== I came across this type of poor thinking in carousel dynamics where the wooden horses are meant to move up and down under stationary 'cranks' notwithstanding that the idea of oscillatory motion of the platform interior was considered to be moving the riders. -- The Reverend Lord Androcles. REWARD £500 I'm not the government, if I were it would £20,000,000, but I am offering £500 for the head of the murderer of James Foley, on a spike, mounted on London Bridge as we would have done in medieval times. Add your own contribution and spread the word. It's eye for an eye, tooth for a tooth, head for a head, barbarism for barbarism. |
#10
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Evidence for Supernovas Near Earth
There are a lot of empirical riff-raff hanging around the group which amounts to people who can't think straight,can't adjust or adapt to information or logic.
You have academics going to these institutions today who really imagine that the crust moves over a stationary Earth notion of 'hotspots' so that evolutionary geology becomes unworkable or at least the dynamic mechanism which leaves clues on the surface crust. Astronomers are supposed to point out that all rotating celestial objects with fluid compositions have an uneven rotational gradient between Equatorial and Polar latitudes with the Earth being no exception hence the visual narrative shifts to it impact on evolutionary geology and clues left on the surface crust. The spherical deviation of the Earth is an added bonus to the specifics of this dynamic and how it meshes in with crustal evolution and particularly the Mid Atlantic Ridge but with no real astronomers around much less serious geological researchers there is no means to handle what effectively is an already observed mechanism of differential rotation. Stellar evolutionary science is even more spectacular but with dull academics unable to adapt and adjust to physical considerations it is not possible to discuss anything worthwhile including the possibility that certain supernovae events precede the emergence of a solar system and a new cycle of the antecedent parent star. |
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