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In , Carl Otto Lampland was the first to announce that he had seen changes in the structure of the Crab Nebula. Their nature, size and distance were subject to debate. Observing changes in such objects allows astronomers to determine whether their spatial extension is “small” or “large”, in the sense that notable fluctuations to an object as vast as our Milky Way cannot be seen over a small time period, such as a few years, whereas such substantial changes are possible if the size of the object does not exceed a diameter of a few light-years.

Lampland’s comments were confirmed some weeks later by John Charles Duncan , an astronomer at the Mount Wilson Observatory. He benefited from photographic material obtained with equipment and emulsions that had not changed since ; as a result the comparison with older snapshots was easy and emphasized a general expansion of the cloud. The points were moving away from the centre, and did so faster as they got further from it.

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As it happens, not very well. The number of Supernova Remnants SNRs observable in the Galaxy is consistent with the number expected to be formed in a Universe that is 7, years old. However, using Davies’ own methodology, the actual number of observable SNRs in our Galaxy from Green gives a value of 11, years, not 7, years. The 11, is the lowest possible value for the age of the Universe as derived from his methodology.

Yet a strict reading of the lineages in Genesis gives the date of creation as being BC, about 6, years ago as famously calculated by Archbishop Ussher of Armagh in the 17th century. His calculations are repeated here, using his values for convenience, any fractions are rounded to the nearest whole number – it makes very little difference to the results: This figure is the same for both an old universe and a young universe. But if the second calculation is repeated with the actual number of observed SNRs in our Galaxy, , then according to his methodology, the result is SNRs in total, and if the rate of supernovae occurrence is one every 25 years, then 25 x is 11, years.

There is a mathematical error in Davies’ calculation. But to quote Davies:

Emperors of India

The supernova is predicted to reach its brightest between September 9 and 12, and will be the brightest since , visible all over Britain, weather permitting. The explosion is so bright because the star is very close to Earth, cosmically speaking, in the Big Dipper constellation, Ursa Major. Most supernovae are more than 1 billion light years away.

This photo of the supernova was released on September 7 – over the next few nights, the flare will be visible to amateur sky watchers as a pale blue light. This image was created using several filters from the ultra-violet to the infra-red Dr Mark Sullivan, the astrophysicist leading the Oxford team examining the supernova, designated PTF kly, said: For many it could be a once in a lifetime chance to see a supernova blossom and then fade before their eyes.

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Radioactive decay[ edit ] Example of a radioactive decay chain from lead Pb to lead Pb. The final decay product, lead Pb , is stable and can no longer undergo spontaneous radioactive decay. All ordinary matter is made up of combinations of chemical elements , each with its own atomic number , indicating the number of protons in the atomic nucleus.

Additionally, elements may exist in different isotopes , with each isotope of an element differing in the number of neutrons in the nucleus. A particular isotope of a particular element is called a nuclide. Some nuclides are inherently unstable. That is, at some point in time, an atom of such a nuclide will undergo radioactive decay and spontaneously transform into a different nuclide. This transformation may be accomplished in a number of different ways, including alpha decay emission of alpha particles and beta decay electron emission, positron emission, or electron capture.

Supernova Dating and Classification Is Not Simple

Carbon 14 is used for this example: This nullifies the carbon method as well as demonstrating that the earth is less than 10, years old. The above is offered as a simple fact of research.

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In , Carl Otto Lampland was the first to announce that he had seen changes in the structure of the Crab Nebula. Their nature, size and distance were subject to debate. Observing changes in such objects allows astronomers to determine whether their spatial extension is “small” or “large”, in the sense that notable changes in an object as vast as our Milky Way cannot be seen over a small time period, such as a few years, whereas such changes are possible if the size of the object does not exceed a diameter of a few light-years.

Lampland’s comments were confirmed some weeks later by John Charles Duncan , an astronomer at the Mount Wilson Observatory. He benefited from photographic material obtained with equipment and emulsions that had not changed since ; as a result the comparison with older snapshots was easy and emphasized a general expansion of the cloud. The points were moving away from the centre, and did so faster as they got further from it.

Lundmark gives a list of 60 suspected novae, then the generic term for a stellar explosion, in fact covering what is now understood as two distinct phenomena, novae and supernovae. The nova of , already mentioned by the Biots in , [5] is part of the list. It stipulates the location of this guest star in a note at the bottom of the page as being “close to NGC “, one of the names for the Crab Nebula, but it does not seem to create an explicit link between them.

In , Edwin Hubble was the first to note that the changing aspect of the Crab Nebula, which was growing bigger in size, suggests that it is the remains of a stellar explosion. He realised that the apparent speed of change in its size signifies that the explosion which it comes from occurred only nine centuries ago, which puts the date of the explosion in the period covered by Lundmark’s compilation.

What Is a Supernova?

Although the exact values for the luminosity, radius, mass parameter, and mass may vary slightly in the future due to observational uncertainties, the IAU nominal constants will remain the same SI values as they remain useful measures for quoting stellar parameters. Large lengths, such as the radius of a giant star or the semi-major axis of a binary star system, are often expressed in terms of the astronomical unit — approximately equal to the mean distance between the Earth and the Sun million km or approximately 93 million miles.

In , the IAU defined the astronomical constant to be an exact length in meters:

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The Radiometric Dating Game Radiometric dating methods estimate the age of rocks using calculations based on the decay rates of radioactive elements such as uranium, strontium, and potassium. On the surface, radiometric dating methods appear to give powerful support to the statement that life has existed on the earth for hundreds of millions, even billions, of years. We are told that these methods are accurate to a few percent, and that there are many different methods.

We are told that of all the radiometric dates that are measured, only a few percent are anomalous. This gives us the impression that all but a small percentage of the dates computed by radiometric methods agree with the assumed ages of the rocks in which they are found, and that all of these various methods almost always give ages that agree with each other to within a few percentage points. Since there doesn’t seem to be any systematic error that could cause so many methods to agree with each other so often, it seems that there is no other rational conclusion than to accept these dates as accurate.

However, this causes a problem for those who believe based on the Bible that life has only existed on the earth for a few thousand years, since fossils are found in rocks that are dated to be over million years old by radiometric methods, and some fossils are found in rocks that are dated to be billions of years old. If these dates are correct, this calls the Biblical account of a recent creation of life into question.

After study and discussion of this question, I now believe that the claimed accuracy of radiometric dating methods is a result of a great misunderstanding of the data, and that the various methods hardly ever agree with each other, and often do not agree with the assumed ages of the rocks in which they are found. I believe that there is a great need for this information to be made known, so I am making this article available in the hopes that it will enlighten others who are considering these questions.

Even the creationist accounts that I have read do not adequately treat these issues.

Supernovae, Supernova Remnants and Young Earth Creationism FAQ

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The supernova that formed the Crab Nebula was so bright that astronomers could see it during the day. Other supernovae that were observed before the telescope was invented occurred in ,

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They watched a star in a far-off galaxy first grow so huge it was bigger than our entire solar system – that’s from the sun all the way out to far-off Pluto – and then collapse and explode. And it kept exploding, over and over again, for almost two years. You will now receive updates from Technology Newsletter Technology Newsletter Get the latest news and updates emailed straight to your inbox.

By submitting your email you are agreeing to Fairfax Media’s terms and conditions and privacy policy. Some are so bright they are visible with the naked eye. When a smaller star like our sun runs out of fuel, it fizzles out with a whimper.

Kepler’s Supernova: We can date Kepler’s Supernova, because Johannes Kepler watched it in and said it was visible in the daytime for three weeks. It was a Type 1a supernova, the kind cosmologists use to measure the size and expansion rate of the universe.

The strange phenomenon was possible because light from the exploding star bent through a galaxy before reaching Earth. The intervening galaxy, which sits 2 billion light years from Earth, magnified the explosion’s brightness 50 times to give astronomers an unprecedented view of the Type 1a supernova, which the team have called ‘iPTF16geu’. Scroll down for video This image shows the gravitationally lensed type 1a supernova iPTF16geu as seen with different telescopes.

Optical light observation of iPTF16geu and its surroundings. Galaxies bend light through an effect called ‘gravitational lensing’ that helps astronomers peer deeper into the cosmos. One of the foundations of Einstein’s theory of general relativity is that mass curves the surrounding space-time. This curve can create a ‘lens,’ deflecting the path of passing light and magnifying any objects on the other side. This created an ‘image’ of the supernova at four different points on Earth’s surface.

For astronomers to benefit from this phenomenon, a sufficiently massive foreground object must align precisely with the background target they wish to study. Type 1a supernovae are important to study because they can tell astronomers more about the rate that the universe is expanding and how matter is scattered around the galaxy. They are often referred to as ‘standard candles’ because of their well-known intrinsic brightness. Finding a magnified, or ‘gravitationally lensed’, Type 1a supernova is like discovering a brighter candle with which to view the universe.

The Paluxy Dinosaur/”Man Track” Controversy

Taylor Site, Paluxy Riverbed, , Glen Rose, TX The Taylor Site contains several trackways of largely infilled, metatarsal dinosaur footprints once considered human by many creationists, and a trail of deeper, more typical digitigrade dinosaur tracks. Click image for larger view. Photograph C , Glen J. At one time many YECs argued that such tracks supported their belief that all life forms were created only several thousand years ago, dramatically contradicting the conventional geologic time table that humans did not appear on earth until over 60 million years after non-avian dinosaurs became extinct.

However, the “man track” claims have not stood up to close scientific scrutiny, and in recent years have been abandoned even by most creationists.

Mahapadma Nanda became King of Magadha and created what looks like the first “Empire” in Northern India. While Indian history begins with some confidence with the Mauyras, the Nandas are now emerging into the light of history with a little more distinctness.

Probably India did not have a clear local name earlier because, like China , it seemed to be the principal portion of the entire world, and so simply the world itself. Sumeru or Meru , the only one inhabited with humans identical to us. The only question was how much of it was taken up by India. Indeed, India was once an island in the Mesozoic Ocean, but it moved north and collided with Asia. In Chinese, we get various ways of referring to India. The modern form, , renders the name phonetically with characters of no particular semantic significance “print, stamp, or seal” and “a rule, law, measure, degree”.

The older practice, however, was dedicated characters that might have a larger meaning. Thus, we get or , in which can be a kind of bamboo but otherwise is just used for India. Thus we get expressions like , “Sanskrit,” , “Sanskrit characters. The rule of the Sult. The supremely foreign unification of India, of course, was from the British, under whom India achieved its greatest unity, although that was lost upon independence to the religious division between India and Pakistan.

The Moghuls and British, of course, called India by its name in their own languages i.

Oasis – Champagne Supernova


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