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(LBL.gov)   Life on Earth follows a 62-million-year cycle. And maybe a 140-million-year cycle as well   (lbl.gov) divider line
    More: Cool  
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18031 clicks; posted to Main » and Fandom » on 08 Apr 2005 at 7:56 AM (17 years ago)   |   Favorite    |   share:  Share on Twitter share via Email Share on Facebook



172 Comments     (+0 »)


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2005-04-08 7:39:27 AM  
Yeah, that's when the program ends, formats it's harddrive, and restarts.
 
2005-04-08 7:59:29 AM  
The earth is only a few thousand years old. This can't possibly be true. What kind of idiot believes that we can possibly know what happened 62 million years ago, before the earth was even created???!!??
 
2005-04-08 7:59:44 AM  
That can't be right. The world is only 6000 years old.

/or so my fundy neighbors tell me
 
2005-04-08 8:00:31 AM  
C:/format???

/got nothing....
 
2005-04-08 8:00:43 AM  
Damn you Pocket Ninja. Beat me by 15 seconds.
 
2005-04-08 8:02:36 AM  
Yeah, that's when the program ends, formats it's harddrive, and restarts.

No. It just runs its version of ad-aware and eliminates the spyware. Like dinosaurs and humans.
 
2005-04-08 8:09:04 AM  
bslatner

Damn you Pocket Ninja. Beat me by 15 seconds.

The Lord was guiding my fingers over the keyboard.
 
2005-04-08 8:11:05 AM  
I think his head is being distorted by the awesome power of the Lava Lamp...

[image from lbl.gov too old to be available]
 
2005-04-08 8:11:08 AM  
Will this renew support for the nemesis object theory?
 
ZAZ [TotalFark]
2005-04-08 8:11:22 AM  
Yet another potentially interesting thread hijacked by anti-religion trolls.
 
2005-04-08 8:12:34 AM  
Anybody here know the orbital period of the sun around the galactic center?
 
2005-04-08 8:12:36 AM  
Oh, flame bait in the second post. Grow up dorks.
 
2005-04-08 8:13:13 AM  
meridian: I think his head is being distorted by the awesome power of the Lava Lamp...


and look, a darth maul coffee mug!! It's almost as if they were ... well... geeks...

(I could just picture it: Get some random "science" looking crap on your desk)
 
2005-04-08 8:15:52 AM  
I blame the Necrons and their masters, the C'Tan.

/obscure?
 
2005-04-08 8:16:33 AM  
DECMATH: Anybody here know the orbital period of the sun around the galactic center?


appears to be roughly 200-250 million years
 
2005-04-08 8:17:00 AM  
Chum Lee: Will this renew support for the nemesis object theory?

I assume you are referring to the Asimov book? Is there an actual theory based on that?
 
2005-04-08 8:18:07 AM  
DECMATH
Anybody here know the orbital period of the sun around the galactic center?

From http://hypertextbook.com/facts/2002/StacyLeong.shtml:

All stars in the galaxy rotate around a galactic center but not with the same period. Stars at the center have a shorter period than those farther out. The Sun is located in the outer part of the galaxy. The speed of the solar system due to the galactic rotation is about 220 km/s. The disk of stars in the Milky Way is about 100,000 light years across and the sun is located about 30,000 light years from the star's center. Based on a distance of 30,000 light years and a speed of 220 km/s, the Sun's orbit around the center of the Milky Way once every 225 million years. The period of time is called a cosmic year. The Sun has orbited the galaxy, more than 20 times during its 5 billion year lifetime. The motions of the period are studied by measuring the positions of lines in the galaxy spectra.
 
2005-04-08 8:19:47 AM  
Don't worry, all we have to do is watch for any large fungal blooms or mind worm boils. Untill those start cropping up everywhere the end of the cycle is still some ways off. At least 20 turns, just ask Lady Deirdre.

/obscure?
 
2005-04-08 8:22:46 AM  
Pale_Green_Pants_With_Nobody_Inside_Them:

I assume you are referring to the Asimov book? Is there an actual theory based on that?

He named the story after the actual theory.

http://en.wikipedia.org/wiki/Nemesis_%28star%29
 
2005-04-08 8:39:41 AM  
So what, only another few billion till the game restarts right?
Wait a second...
restarts...
game...
the?
 
2005-04-08 8:53:44 AM  
Come on guys, do we need to start a religious flame war on every single science topic? It only took two posts this time.

Of course, I agree that the Earth more than a few thousand years old. That doesn't mean I need to start picking on someone else's beliefs unprovoked.


/thinks the cosmic year has something to do with it, but the numbers don't match up.
 
2005-04-08 8:55:46 AM  
Walk with planet, morrisonsl.
 
2005-04-08 8:55:50 AM  
2005-04-08 08:11:22 AM ZAZ [TotalFark]

Yet another potentially interesting thread hijacked by anti-religion trolls.


Oh, the religious trolls will be here soon enough.

This thread is still young.
 
2005-04-08 8:57:44 AM  
I seemed to recall reading something like this not long ago, and dug up something realted:

http://news.nationalgeographic.com/news/2005/03/0309_050309_extinctions.html

So, nothing to worry about here folks! Mass extinctions happen every 62 million years, and the last one was 65 million years ago! Looks like we missed it!
 
2005-04-08 8:57:51 AM  
Current planetary life cycle's fame is up in 62,000,000, 61,999,999, 61,999,998...
 
2005-04-08 8:59:56 AM  
we're through the looking glass now, people
 
2005-04-08 9:00:29 AM  
I think it's cute how the people in here who are complaining about a few jesting posts made before this thread even hit the main board have contributed exactly nothing of interest to the actual discussion this board is supposed to center around.
 
2005-04-08 9:01:10 AM  
"What were seeing is a real and very strong signal that the history of life on our planet has been shaped by a 62 million year cycle, but nothing in present evolutionary theory accounts for it, said Richard Muller, a physicist who holds joint appointments with Berkeley Labs Physics Division, and UC Berkeleys Physics Department. While this signal has a huge presence in biodiversity, it can also be seen in both extinctions and originations.

Beginning in 1980 with the dinosaur/asteroid controversy, it has more recently become popular for geologists to consider not just local, but global catastrophes to account for the geologic evidence they see. One can be assured that for a community to have made such an incredible shift -- in spite of the strong association which exists between catastrophism and creationism -- there must be profound evidence for catastrophe throughout the geologic column. ~ Kurt Wise
 
2005-04-08 9:01:15 AM  
first religious flamewar since the crash! awesome!

C:/format???

lol more like rm -r amirite
 
2005-04-08 9:01:30 AM  
Where's Bevets?
 
2005-04-08 9:05:05 AM  
We all know that this is the fifth cycle. Five Neos, five cycles.
 
2005-04-08 9:05:59 AM  
Hey this might explain the Jain Kalchakras
 
2005-04-08 9:14:54 AM  
Bevets: God stirs the petrie dish and blinks every 62 million years. He remains the staring contest champ. For now.

[image from mixtaper.com too old to be available]

/Satan is a mischievous research assistant.
 
2005-04-08 9:15:57 AM  
Yet another potentially interesting thread hijacked by anti-religion trolls.

Oh, the religious trolls will be here soon enough.


Yeh, but they started it!

Oh, flame bait in the second post. Grow up dorks.

AMEN! Besides, it could be God doing this every 62 million years. Right?

So does anyone know where we are on the timeline? I hope it hasn't been 61.99999999 million years since the last whatever-it-is.
 
2005-04-08 9:16:04 AM  
HACK THE PLANET!
 
2005-04-08 9:19:58 AM  
2005-04-08 08:57:51 AM SherKhan [TotalFark]

Current planetary life cycle's fame is up in 62,000,000, 61,999,999, 61,999,998...

That's years, not second. Funny, nonetheless.
 
2005-04-08 9:31:22 AM  
.[image from img25.exs.cx too old to be available]
 
2005-04-08 9:31:34 AM  
That's years, not second.

Nope, that's seconds alright. Still time enough to get our affairs in order.
 
2005-04-08 9:36:18 AM  
SherKhan
Current planetary life cycle's fame is up in 62,000,000, 61,999,999, 61,999,998...

So we're done in a little less than 2 years? ...Guess it's time to do something with myself

/double-entendre explicitly implied
//oxymoron leaves bad taste in mouth
///metaphor irrelevant
////obligatory redundant multi-slash entry
 
2005-04-08 9:36:34 AM  
I don't even know why I'm doing this, but oh well...

2005-04-08 09:01:10 AM Bevets

"What were seeing is a real and very strong signal that the history of life on our planet has been shaped by a 62 million year cycle, but nothing in present evolutionary theory accounts for it (emphasis Bevets), said Richard Muller, a physicist who holds joint appointments with Berkeley Labs Physics Division, and UC Berkeleys Physics Department. While this signal has a huge presence in biodiversity, it can also be seen in both extinctions and originations.

Evolutionary theory does not have to account for external events, be it geologic, astrophysical, etc. It only concerns itself with the biological mechanisms involved with the evolution of species. Of course, these global 'resets' corroborate the role natural selection plays with the evolution of life (those unable to adapt to what caused the mass extinction went extinct, those that were able to adapt survived). Note the last sentence: "While this signal has a huge presence in biodiversity, it can also be seen in both extinctions and originations." Its simply more evidence that natural selection works.

Beginning in 1980 with the dinosaur/asteroid controversy, it has more recently become popular for geologists to consider not just local, but global catastrophes to account for the geologic evidence they see. One can be assured that for a community to have made such an incredible shift -- in spite of the strong association which exists between catastrophism and creationism -- there must be profound evidence for catastrophe throughout the geologic column. ~ Kurt Wise
I've no idea where you're trying to go with this, but we actually have found the impact crater that is the most likely candidate for the impact that this quote is referring to. The evidence is there in most cases (ie where the evidence is young enough to not be destroyed by geologic processes). Its all about finding it.
 
2005-04-08 9:43:39 AM  
SherKhan
Nope, that's seconds alright. Still time enough to get our affairs in order.

So far it's taken me more than 34 years to get my affairs in order - do you really think I can finish the job in less than two years?
 
2005-04-08 9:44:57 AM  
It's the work of Von Neumann machines, self-replicating hunter-killers designed by xenophobic species to roam the galaxy to find and destroy life. Fred Saberhagen calls them Berzerkers.

Does anyone know if the galaxy remains static as it revolves or do different bits of it move relative to each other as it rotates? If our bit is swirling about (technical term) as it rotates it could be interacting with something lethal at regular intervals less than the 225m year galactic rotation.
 
2005-04-08 9:46:52 AM  
2005-04-08 09:31:34 AM SherKhan [TotalFark]
That's years, not second.

Nope, that's seconds alright. Still time enough to get our affairs in order.


Are you sure? I want to make sure I don't miss a second. If me mathematical skills serve me correct its

62,000,000x365x24x60x60=1,955,232,000,000,000 seconds.

/hope this is enough time
 
2005-04-08 9:51:03 AM  
Hmmm... I thought at first the 220 million year galactic rotation period divided by the 62 million year fossil cycle might equal pi and we could all comment on that, but it's not that close...
 
2005-04-08 9:52:44 AM  
The drops in genetic information happen in millions, not dozens of years, so they cannot be caused by sudden catastrophies.

They could be slow, gradual climate changes, but according to Mr Darwin, shouldn't the genome of the given species conform to the new circumstances provided during that long period? (Since these circumstances should give distinct advantages to the specimen dealing with them better, so selection should be relatively fast)

How can this be, then?

Also, does this mass extinction mean a mass reduction of biomass on earth or only genetic diversity?
 
2005-04-08 9:53:22 AM  
ZAZ

Yet another potentially interesting thread hijacked by anti-religion trolls.

2005-04-08 08:12:36 AM Major Thomb

Oh, flame bait in the second post. Grow up dorks.

You might have a point if it weren't for the fact that religious fanatics are trying (and possibly succeeding) to take over the most powerful country on earth.
 
2005-04-08 9:54:19 AM  
I find this stuff fascinating

I've been kicking around the idea that we humans are to the earth what spores are to a mushroom. to far out?

I'm thinking maybe life is an inevitable (and very complex) chemical reaction that occurs under conditions like we have here on earth. Maybe given enough time intelligent life always happens under these conditions.
as intelligent creatures it's only natural (i guess) that we would expand beyond this planet along with other inhabitants of earth (beneficial plants and animals), thus we would spread life on earth throughout our solar system, galaxy, etc. kinda like spores...yeah.

I forget, we have right handed proteins and left handed sugars...or is it the other way around? that'll be sure to complicate our colonization process. even if we find a planet with suitable atmosphere and climate we'll still have to deal with that. I think.

/just rambling
 
2005-04-08 9:57:02 AM  
... summon Bevets

... summon Bevets!

Damn it, SUMMON BEVETS!!!
 
2005-04-08 10:00:40 AM  
If only Fark could last as long without a meltdown,,,,,
/rambling as well
 
2005-04-08 10:01:51 AM  
I've been kicking around the idea that we humans are to the earth what spores are to a mushroom. to far out?

I prefer the viral analogy...
 
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