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Supernova debris found on Earth
NEWS@NATURE.COM ^ | 02 November 2004 | Mark Peplow

Posted on 11/24/2004 1:22:08 PM PST by Phsstpok

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To: Phsstpok
"I've always been under the impression that all of the complex atoms that are the basic building blocks for, well, just about everything, including us, was formed in stellar explosions, either novas or super novas."

Actually, many elements are formed in stars long before they go nova or supernova. Once hydrogen fuel is depleted, stars start fusing helium into carbon and oxygen, then those elements are subsequently fused into even heavier elements such as nitrogen and silicon, finally culminating in iron. All elements heavier than iron are formed in supernova explosions. The fact that Earth is rich in those heavy elements is proof that the primordial dust cloud of our solar system was enriched by supernova explosions, which also probably started the initial gravitational collapse of the dust cloud.

21 posted on 11/24/2004 1:50:18 PM PST by Batrachian
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To: Junior
An "At least one luddite has found this thread so far" ping.

LOL..you are the one hanging on to a 150 year old theory in its final death spasms...
22 posted on 11/24/2004 1:52:56 PM PST by microgood
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To: Phsstpok
Accurately interpreting it, however, is another matter.

Yeah, These are the same guys that interpret the constitution to BAN GOD from the public discourse!

23 posted on 11/24/2004 1:53:22 PM PST by Samurai_Jack (John Kerry for President Memorabilia for sale! - CHEAP @ www.johnkerry.com)
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To: Phsstpok
Ah, folks; every atom of every element with an atomic number greater than that of iron (56Fe26) is nova or supernova debris. The creation of any atom larger than iron consumes rather than releases energy, and is thus not created during normal stellar fusion.
24 posted on 11/24/2004 1:57:26 PM PST by RonF
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To: Phsstpok

I have always been under impression that EARTH itself was Supernova Debris.


25 posted on 11/24/2004 1:57:33 PM PST by The_Republican
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To: microgood
LOL..you are the one hanging on to a 150 year old theory in its final death spasms...

You know, creationists have been claiming the death of evolution for more than a century now. I guess y'all assume you might be right one day.

Tens of thousands of biologists are not holding their breaths, however.

26 posted on 11/24/2004 1:58:42 PM PST by Junior (FABRICATI DIEM, PVNC)
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To: evets

"Impossible! The earth is only 3,000 years old.< /creationism >"

Creationism is a much wider field and encompasses far more views and theories than that. Earth being changed to become more receptive to human life as a result of super nova matter distribution could fall into both progressive and theistic views of Creationism.


27 posted on 11/24/2004 2:01:20 PM PST by silverleaf (Fasten your seat belts- it's going to be a BUMPY ride.)
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To: Junior
... creationists have been claiming the death of evolution for more than a century now.

The Imminent Demise of Evolution. (The endless crisis.)

28 posted on 11/24/2004 2:02:29 PM PST by PatrickHenry (The all-new List-O-Links for evolution threads is now in my freeper homepage.)
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To: newgeezer

It wasn't really a Supernova it was 69' Nova SS with a 454. At 5500 rpm a rod went through the side of the block, allowing some pieces of cast iron, Valvoline 20-50w and Prestone Anti-freeze to be expelled into the atmospere and along the side of the road. Also causing a noticable decrease in forward velocity. But no scientific facts of change in human evolution, except maybe on not using old connecting rods in a high h.p. engine.


29 posted on 11/24/2004 2:03:57 PM PST by OldBullrider
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To: newgeezer
It wasn't really a Supernova it was 69' Nova SS with a 454. At 5500 rpm a rod went through the side of the block, allowing some pieces of cast iron, Valvoline 20-50w and Prestone Anti-freeze to be expelled into the atmosphere and along the side of the road. Also causing a noticable decrease in forward velocity. But no scientific facts of change in human evolution, except maybe on not using old connecting rods in a high h.p. engine.
30 posted on 11/24/2004 2:05:55 PM PST by OldBullrider
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To: Phsstpok

..predicting the past is no trick.

Just need to know the bias of who's doing the 'predicting' of what has already happened.

31 posted on 11/24/2004 2:07:53 PM PST by ml1954
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To: RonF
Ah, folks; every atom of every element with an atomic number greater than that of iron (56Fe26) is nova or supernova debris.

The curve of binding energy. :-)

32 posted on 11/24/2004 2:10:46 PM PST by RadioAstronomer
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To: silverleaf

Sorry if I misrepresented the creationist viewpoint.
I was trying to be funny. (Dang, failed again!)
Anyway, I believe the Bible. God did it!


33 posted on 11/24/2004 2:11:17 PM PST by evets (God bless president George W. Bush)
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To: Phsstpok

Supergiant stars have short life in cosmic terms, like 100 million years. Smaller the star, the longer itn will live because it is burning less fuel. It is likely that billions of years ago, there were supernovas not too far from our Solar System. When supergian stars exploded, they produce heavy elements like iron to uranium. When stars have iron appearing, it is sign it will start to die and go supernova. If a supernova happened near us, we would be bombarded with deadly gamma and cosmic rays. It would kill almost all life on this planet.


34 posted on 11/24/2004 2:13:36 PM PST by Ptarmigan (Proud rabbit hater and killer)
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To: Batrachian
All elements heavier than iron are formed in supernova explosions.

Not exactly true, (other than the man-made elements) there are fusions that create elements
just above iron, but obviously a pittance compared to iron.

35 posted on 11/24/2004 2:21:49 PM PST by Calvin Locke
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To: hadaclueonce

I agree. It is impossible to date anything with any type of isotope unless you have something that you can prove was made at the date you are looking at. A million years, a billion years or 50 years... it does not make any difference unless you already have a sample that was also made at that time. This is all intellectual BS.


36 posted on 11/24/2004 2:22:16 PM PST by Luke
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To: MisterRepublican

I think ancient SUV debris was also found in the rock layers.


37 posted on 11/24/2004 2:24:26 PM PST by Larry Lucido
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To: Calvin Locke
"Not exactly true, (other than the man-made elements) there are fusions that create elements just above iron, but obviously a pittance compared to iron."

The fusion of iron consumes more energy than it releases, so it doesn't occur except in the case of supernova explosions, with their enormous neutron flux bombarding iron atoms to form heavier elements.

I've heard that heavier elements can form in the accretion disks of black holes, but that's the exception that proves the rule.

What where you referring to?

38 posted on 11/24/2004 2:35:58 PM PST by Batrachian
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To: MisterRepublican

Beef eating SUV owners.


39 posted on 11/24/2004 2:37:29 PM PST by Calamari (Pass enough laws and everyone is guilty of something.)
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To: The_Republican
The primordial dust cloud that formed our solar system was enriched by elements from supernovae, and shock waves from those same supernova explosions where what caused that dust cloud to start its gravitational collapse.
40 posted on 11/24/2004 2:38:24 PM PST by Batrachian
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