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Sun's Movement Through Milky Way... Comets Hurtling...Life Extinctions
Science Daily ^ | 5-2-2008 | Cardiff University

Posted on 05/02/2008 8:53:50 AM PDT by blam

Sun's Movement Through Milky Way Regularly Sends Comets Hurtling, Coinciding With Mass Life Extinctions

A large body of scientific evidence now exists that support the hypothesis that a major asteroid or comet impact occurred in the Caribbean region at the boundary of the Cretaceous and Tertiary periods in Earth's geologic history. Such an impact is suspected to be responsible for the mass extinction of many floral and faunal species, including the large dinosaurs, that marked the end of the Cretaceous period. (Credit: Art by Don Davis / Courtesy of NASA)

ScienceDaily (May 2, 2008) — The sun's movement through the Milky Way regularly sends comets hurtling into the inner solar system -- coinciding with mass life extinctions on earth, a new study claims. The study suggests a link between comet bombardment and the movement through the galaxy.

Scientists at the Cardiff Centre for Astrobiology built a computer model of our solar system's movement and found that it "bounces" up and down through the plane of the galaxy. As we pass through the densest part of the plane, gravitational forces from the surrounding giant gas and dust clouds dislodge comets from their paths. The comets plunge into the solar system, some of them colliding with the earth.

The Cardiff team found that we pass through the galactic plane every 35 to 40 million years, increasing the chances of a comet collision tenfold. Evidence from craters on Earth also suggests we suffer more collisions approximately 36 million years. Professor William Napier, of the Cardiff Centre for Astrobiology, said: "It's a beautiful match between what we see on the ground and what is expected from the galactic record."

The periods of comet bombardment also coincide with mass extinctions, such as that of the dinosaurs 65 million years ago. Our present position in the galaxy suggests we are now very close to another such period.

While the "bounce" effect may have been bad news for dinosaurs, it may also have helped life to spread. The scientists suggest the impact may have thrown debris containing micro-organisms out into space and across the universe.

Centre director Professor Chandra Wickramasinghe said: "This is a seminal paper which places the comet-life interaction on a firm basis, and shows a mechanism by which life can be dispersed on a galactic scale."

The paper, by Professor Napier and Dr Janaki Wickramasinghe, is to be published in the Monthly Notices of the Royal Astronomical Society.

Adapted from materials provided by Cardiff University, via EurekAlert!, a service of AAAS.


TOPICS: News/Current Events
KEYWORDS: catastrophism; comet; extinction; godsgravesglyphs; milkyway; panspermia; soundsbadreallybad; spirograph; sun; weareindeepdoodoo
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1 posted on 05/02/2008 8:53:50 AM PDT by blam
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To: SunkenCiv

Catastrophism Ping.


2 posted on 05/02/2008 8:54:17 AM PDT by blam (Secure the border and enforce the law)
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To: blam
The scientists suggest the impact may have thrown debris containing micro-organisms out into space and across the universe.

I know I'm being picky, but there's an implication that the impact threw debris out of our solar system, out of our galaxy, and out across the universe. That's ... ah ... impressive. Snort.

3 posted on 05/02/2008 9:02:24 AM PDT by ClearCase_guy (Et si omnes ego non)
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To: blam

All this supposed whirling around is making me nauseous.


4 posted on 05/02/2008 9:04:30 AM PDT by GourmetDan (Eccl 10:2 - The heart of the wise inclines to the right, but the heart of the fool to the left.)
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To: blam

Another opinion:

Munir Humayun, an associate professor in FSU’s Department of Geological Sciences and a researcher at the National High Magnetic Field Laboratory, co-authored a paper, “Partitioning of Palladium at High Pressures and Temperatures During Core Formation,” that was recently published in the peer-reviewed science journal Nature Geoscience.

The paper provides a direct challenge to the popular “late veneer hypothesis,” a theory which suggests that all of our water, as well as several so-called “iron-loving” elements, were added to the Earth late in its formation by impacts with icy comets, meteorites and other passing objects.


This is ‘science’


5 posted on 05/02/2008 9:07:47 AM PDT by RightWhale (Repeal the Law of the Excluded Middle)
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To: blam

I’ve always suspected there are occasional mass bombardments like this, and it will be a bad day when it happens again.


6 posted on 05/02/2008 9:08:37 AM PDT by Williams
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To: GourmetDan

Think of how fast the earth itself is rotating and you’ll puke.


7 posted on 05/02/2008 9:08:39 AM PDT by Sacajaweau ("The Cracker" will be renamed "The Crapper")
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To: blam
YouTube Video Explains 'Global Warming'

Like it or not, we are all in God's hands.

8 posted on 05/02/2008 9:11:24 AM PDT by ex-Texan (Matthew 7: 1 - 6)
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To: blam

2012, man....


9 posted on 05/02/2008 9:17:31 AM PDT by Cyber Liberty (Don’t trust anyone who can’t take a joke. [Congressman BillyBob])
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To: RightWhale
I love science and I love God.

Guillermo Gonzalez & Jay W Richards, The Privileged Planet: How Our Place In The Comos is Designed For Discovery

Strong on science. God more by implication.

10 posted on 05/02/2008 9:20:08 AM PDT by onedoug
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To: onedoug

That’s nice. Science is an illusion.


11 posted on 05/02/2008 9:24:22 AM PDT by RightWhale (Repeal the Law of the Excluded Middle)
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To: blam

This needs to be passed on to Nancy Pelosi immediately so that legislation requiring human measures to stabilize the sun’s movement through the galaxy can be passed. The bulk of the human measures can be implemented by the wealthy countries because the poorer countries can’t afford to do it and the wealthy countries got their wealth by exploiting the poorer countries. We need to act now. The world can’t wait!


12 posted on 05/02/2008 9:26:42 AM PDT by 17th Miss Regt
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To: Sacajaweau
"Think of how fast the earth itself is rotating and you’ll puke."

How do you tell the difference between a rotating earth and a rotating universe?

13 posted on 05/02/2008 9:28:18 AM PDT by GourmetDan (Eccl 10:2 - The heart of the wise inclines to the right, but the heart of the fool to the left.)
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To: RightWhale

So is the way by which your sentance came to me.


14 posted on 05/02/2008 9:28:42 AM PDT by onedoug
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To: RightWhale

“That’s nice. Science is an illusion.”

Sure it is. Go find a nuclear warhead, sit on it, and set it off. Enjoy the “illusion”.

Science is the least illusory of human endeavors. It is solely concerned with understanding how the “real world” works. Much of the rest of human activity is concerned with actively avoiding or denying those same realities.


15 posted on 05/02/2008 9:42:09 AM PDT by PreciousLiberty
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To: 75thOVI; aimhigh; Alice in Wonderland; AndrewC; aristotleman; Avoiding_Sulla; BenLurkin; Berosus; ..
Thanks blam.
 
Catastrophism
· join · view topics · view or post blog · bookmark · post new topic ·

16 posted on 05/02/2008 9:44:39 AM PDT by SunkenCiv (https://secure.freerepublic.com/donate/_______________________Profile updated Monday, April 28, 2008)
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To: GourmetDan

“How do you tell the difference between a rotating earth and a rotating universe?”

I usually start with Occam’s Razor... ;-)


17 posted on 05/02/2008 9:45:21 AM PDT by PreciousLiberty
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Asteroids: Deadly Impact Asteroids:
Deadly Impact

National Geographic

18 posted on 05/02/2008 9:46:12 AM PDT by SunkenCiv (https://secure.freerepublic.com/donate/_______________________Profile updated Monday, April 28, 2008)
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To: PreciousLiberty
"I usually start with Occam’s Razor... ;-)"

And how is a rotating earth simpler?

19 posted on 05/02/2008 9:46:21 AM PDT by GourmetDan (Eccl 10:2 - The heart of the wise inclines to the right, but the heart of the fool to the left.)
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The Cycle of Cosmic Catastrophes: Flood, Fire, and Famine in the History of Civilization The Cycle of Cosmic Catastrophes:
Flood, Fire, and Famine
in the History of Civilization

by Richard Firestone,
Allen West, and
Simon Warwick-Smith


20 posted on 05/02/2008 9:47:13 AM PDT by SunkenCiv (https://secure.freerepublic.com/donate/_______________________Profile updated Monday, April 28, 2008)
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Comet/Asteroid Impacts and Human Society Comet/Asteroid Impacts
and Human Society

ed by Peter T. Bobrowsky
and Hans Rickman

intro (PDF)
due to links here


21 posted on 05/02/2008 9:47:53 AM PDT by SunkenCiv (https://secure.freerepublic.com/donate/_______________________Profile updated Monday, April 28, 2008)
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To: GourmetDan

“And how is a rotating earth simpler?”

It requires no special explanation for all the other rotating bodies that we observe, in other words a difference between them and the Earth. Obviously the Universe can’t be rotating around all of them, they spin on different axes. ;-)


22 posted on 05/02/2008 9:52:56 AM PDT by PreciousLiberty
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To: Williams

I’ve been in a mass bombardment and I can tell you it’s no fun.


23 posted on 05/02/2008 9:55:11 AM PDT by tet68 ( " We would not die in that man's company, that fears his fellowship to die with us...." Henry V.)
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To: Cyber Liberty; blam
;') [singing] two thousand uno du'os party over says the lights of heaven /
tonight i'm gonna party like it's two thousand eleven
December 20, 2012

24 posted on 05/02/2008 9:55:53 AM PDT by SunkenCiv (https://secure.freerepublic.com/donate/_______________________Profile updated Monday, April 28, 2008)
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To: RightWhale

That’s nice. Science is an illusion.

Everything is illusion.


25 posted on 05/02/2008 9:56:36 AM PDT by tet68 ( " We would not die in that man's company, that fears his fellowship to die with us...." Henry V.)
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To: PreciousLiberty
"It requires no special explanation for all the other rotating bodies that we observe, in other words a difference between them and the Earth. Obviously the Universe can’t be rotating around all of them, they spin on different axes. ;-)"

OK, so how is assuming that there is no difference between the earth and rotating bodies we observe less an assumption than assuming that there is a difference between the earth and the rotating bodies we observe and therefore an argument for Occam's Razor?

What about objects that aren't observed to rotate, like the moon. You assume they do rotate even though they appear not to? Where is Occam's Razor now?

26 posted on 05/02/2008 9:58:59 AM PDT by GourmetDan (Eccl 10:2 - The heart of the wise inclines to the right, but the heart of the fool to the left.)
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To: blam; StayAt HomeMother; Ernest_at_the_Beach; 1ofmanyfree; 21twelve; 24Karet; 3AngelaD; 49th; ...

· join list or digest · view topics · view or post blog · bookmark · post a topic ·

 
Gods
Graves
Glyphs
Thanks Blam. To all -- this topic is getting a little ugly, but I have posted a droll joke, so...

To all -- please ping me to other topics which are appropriate for the GGG list.
GGG managers are Blam, StayAt HomeMother, and Ernest_at_the_Beach
 

· Google · Archaeologica · ArchaeoBlog · Archaeology magazine · Biblical Archaeology Society ·
· Mirabilis · Texas AM Anthropology News · Yahoo Anthro & Archaeo ·
· History or Science & Nature Podcasts · Excerpt, or Link only? · cgk's list of ping lists ·


27 posted on 05/02/2008 10:02:27 AM PDT by SunkenCiv (https://secure.freerepublic.com/donate/_______________________Profile updated Monday, April 28, 2008)
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To: Sacajaweau
Think of how fast the earth itself is rotating and you’ll puke.

It's a wonder that we aren't thrown into outer space....

28 posted on 05/02/2008 10:05:53 AM PDT by Night Hides Not (Forget it...I'll never be able to pull the lever for McCain!)
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To: tet68

I prefer that old proverb (or perhaps ko’an) from India, “the universe is the dream of the Gods, and the Gods are the dream of man.” ;’)


29 posted on 05/02/2008 10:06:56 AM PDT by SunkenCiv (https://secure.freerepublic.com/donate/_______________________Profile updated Monday, April 28, 2008)
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Who knew Bill even *had* a cell phone? :’)


30 posted on 05/02/2008 10:07:16 AM PDT by SunkenCiv (https://secure.freerepublic.com/donate/_______________________Profile updated Monday, April 28, 2008)
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To: blam
"The Cardiff team found that we pass through the galactic plane every 35 to 40 million years..."



De plane, boss, de plane!
31 posted on 05/02/2008 10:09:25 AM PDT by Hegemony Cricket (Friends with umbrellas are outstanding in the rain.)
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To: SunkenCiv

Heh - party like it’s 2011 - pretty funny!


32 posted on 05/02/2008 10:10:30 AM PDT by Hegemony Cricket (Friends with umbrellas are outstanding in the rain.)
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To: blam; Lazamataz

I’m disappointed. 32 posts and Laz has not declared we are all going to die.


33 posted on 05/02/2008 10:12:25 AM PDT by 7thson (I've got a seat at the big conference table! I'm gonna paint my logo on it!)
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To: blam
"Our present position in the galaxy suggests we are now very close to another such period."

I knew it. I juuuuust knew it... sigh

34 posted on 05/02/2008 10:14:57 AM PDT by Hatteras
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Scientists at the Cardiff Centre for Astrobiology built a computer model of our solar system's movement and found that it "bounces" up and down through the plane of the galaxy. As we pass through the densest part of the plane, gravitational forces from the surrounding giant gas and dust clouds dislodge comets from their paths. The comets plunge into the solar system, some of them colliding with the earth. The Cardiff team found that we pass through the galactic plane every 35 to 40 million years, increasing the chances of a comet collision tenfold.
[note: this is the same idea advocated by the late Gene Shoemaker; also, this stands as an alternative to the Nemesis model for periodicity in the impact record]
35 posted on 05/02/2008 10:16:35 AM PDT by SunkenCiv (https://secure.freerepublic.com/donate/_______________________Profile updated Monday, April 28, 2008)
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To: tet68

Breathe deep the gathering gloom,
Watch lights fade from every room.
Bedsitter people look back and lament,
Another day’s useless energy spent.

Impassioned lovers wrestle as one,
Lonely man cries for love and has none.
New mother picks up and suckles her son,
Senior citizens wish they were young.

Cold hearted orb that rules the night,
Removes the colours from our sight.
Red is gray and yellow white,
But we decide which is right.
And which is an illusion?


36 posted on 05/02/2008 10:19:15 AM PDT by Hatteras
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Nemesis: Does the Sun Have a ‘Companion’?
SPACE dot COM | 03 April 2001 | By Robert Roy Britt
Posted on 02/10/2003 11:03:23 AM PST by vannrox
http://www.freerepublic.com/focus/f-news/839980/posts

Could An Asteroid Hit Planet Earth, Again?
Science Daily | 1-20-2008 | Planetary Society
Posted on 01/30/2008 3:46:10 PM PST by blam
http://www.freerepublic.com/focus/f-news/1962278/posts

Earth-sized planet predicted beyond Pluto
Cosmos Magazine | Friday, February 29, 2008 | Agence France-Presse
Posted on 03/20/2008 11:43:43 PM PDT by SunkenCiv
http://www.freerepublic.com/focus/f-chat/1989253/posts


37 posted on 05/02/2008 10:19:33 AM PDT by SunkenCiv (https://secure.freerepublic.com/donate/_______________________Profile updated Monday, April 28, 2008)
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To: GourmetDan

But the moon does rotate. It’s that it’s rotation is geosynchronous with the earth. If it didn’t we’d see its other side.


38 posted on 05/02/2008 10:22:40 AM PDT by onedoug
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To: Hatteras
Breathe Deep
39 posted on 05/02/2008 10:31:10 AM PDT by blam (Secure the border and enforce the law)
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To: GourmetDan

“sit on it and rotate, Potsie” ?


40 posted on 05/02/2008 11:03:59 AM PDT by junkman_106 (Once is chance, twice is coincidence, thrice is enemy action ---007/Ian Fleming)
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To: onedoug
"But the moon does rotate. It’s that it’s rotation is geosynchronous with the earth. If it didn’t we’d see its other side."

No, you assume that it rotates because you assume that the universe does not.

The point being that the guy basing his rotating earth argument on Occam's Razor now has more assumptions in his model and therefore can't use Occam's Razor as an argument.

41 posted on 05/02/2008 11:09:22 AM PDT by GourmetDan (Eccl 10:2 - The heart of the wise inclines to the right, but the heart of the fool to the left.)
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To: ex-Texan
YouTube Video Explains 'Global Warming' Like it or not, we are all in God's hands.

Off topic. The article was not about global warming or atheistic scientism.

42 posted on 05/02/2008 11:16:09 AM PDT by Huber (And the light shineth in darkness; and the darkness comprehended it not. - John 1:5)
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To: Huber
"Off topic. The article was not about global warming or atheistic scientism."

Scientism is, by definition, atheistic.

43 posted on 05/02/2008 11:17:44 AM PDT by GourmetDan (Eccl 10:2 - The heart of the wise inclines to the right, but the heart of the fool to the left.)
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To: Hatteras

“Days of Future Passed”. It still sounds pretty good after all these years!


44 posted on 05/02/2008 11:19:40 AM PDT by Huber (And the light shineth in darkness; and the darkness comprehended it not. - John 1:5)
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To: GourmetDan
Scientism is, by definition, atheistic.

Agreed, the modifier was probably unnecessary. However the article was science, (in terms of research, analysis and a theory) not scientism.

45 posted on 05/02/2008 11:23:38 AM PDT by Huber (And the light shineth in darkness; and the darkness comprehended it not. - John 1:5)
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To: Huber
"Agreed, the modifier was probably unnecessary. However the article was science, (in terms of research, analysis and a theory) not scientism."

You're the one who correctly but inadvertently invoked scientism.

Not me.

46 posted on 05/02/2008 11:32:40 AM PDT by GourmetDan (Eccl 10:2 - The heart of the wise inclines to the right, but the heart of the fool to the left.)
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To: onedoug
But the moon does rotate. It’s that it’s rotation is geosynchronous with the earth. If it didn’t we’d see its other side.

I don't think that is correct. The moon does not rotate. If it did, we would see the other side of the moon regularly. It does orbit the earth, but it is not in geo-synchronous orbit. If it were, only the people on the part of the earth that the moon follows would ever be able to see it, and it would be visible 24/7 (except during an eclipse).
47 posted on 05/02/2008 11:46:26 AM PDT by fr_freak (So foul a sky clears not without a storm.)
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To: SunkenCiv

Thanks for the ping


48 posted on 05/02/2008 11:53:14 AM PDT by Quix (GOD ALONE IS GOD; WORTHY; PAID THE PRICE; IS COMING AGAIN; KNOWS ALL; IS LOVING; IS ALTOGETHER GOOD)
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To: GourmetDan

“OK, so how is assuming that there is no difference between the earth and rotating bodies we observe less an assumption than assuming that there is a difference between the earth and the rotating bodies we observe and therefore an argument for Occam’s Razor?”

It wasn’t “less of an assumption”, however it was a simplifying assumption.

BTW, one of the basic precepts of all science is that there are no “special” places in the Universe where things work differently than elsewhere. It would take a lot of good evidence to overturn that one. Occams Razor also applies there.

“What about objects that aren’t observed to rotate, like the moon. You assume they do rotate even though they appear not to? Where is Occam’s Razor now?”

What do objects that don’t rotate have to do with those that do? (Another poster made the point about the Moon rotating so I’ll leave that alone.)

I made no “assumption” about non-rotating bodies rotating... I was simply speaking of the numerous rotating bodies we do observe.


49 posted on 05/02/2008 12:03:41 PM PDT by PreciousLiberty
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To: fr_freak

“I don’t think that is correct. The moon does not rotate.”

Yes it does, as any basic astronomy text would tell you.

“If it did, we would see the other side of the moon regularly.”

No, if it DID NOT rotate we’d see the other side as it orbited the Earth. The Moon is tidally locked and rotates once per orbit, always keeping the same side facing the Earth.

I hope that cleared things up for you. If not:

http://en.wikipedia.org/wiki/Moon#Two_sides_of_the_Moon


50 posted on 05/02/2008 12:09:45 PM PDT by PreciousLiberty
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