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  #19161  
Vecchio 25-03-2005, 19.48.42
Frank F. Matthews
 
Messaggi: n/a
Predefinito Re: Americans putting their feet up everywhere

Perhaps we will be lucky and there will be a small error allowing us
another 100 000 years. Actually for my purpose another 50 years would
be excessive and 10-15 would probably suffice.



toto wrote:
[color=blue]
> On Fri, 25 Mar 2005 06:09:31 +0000, Julie <j4julie@aol.com> wrote:
>
>[color=green]
>>Why was my comment remotely silly. I can't see a single reason why
>>the extinction of the human race would be a bad thing.[/color]
>
>
> [url]http://education.guardian.co.uk/higher/research/story/0%2C9865%2C1437163%2C00.html[/url]
>
> Bad news - we are way past our 'extinct by' date
>
> Robin McKie, science editor
> Sunday March 13, 2005
> The Observer
>
> Some say the world will end in fire, some say in ice, wrote Robert
> Frost. But whatever is to be our fate, it is now overdue.
>
> After analysing the eradication of millions of ancient species,
> scientists have found that a mass extinction is due any moment now.
>
> Their research has shown that every 62 million years - plus or minus
> 3m years - creatures are wiped from the planet's surface in massive
> numbers.
>
> And given that the last great extinction occurred 65m years ago, when
> dinosaurs and thousands of other creatures abruptly disappeared, the
> study suggests humanity faces a fairly pressing danger. Even worse,
> scientists have no idea about its source.
>
> 'There is no doubting the existence of this cycle of mass extinctions
> every 62m years. It is very, very clear from analysis of fossil
> records,' said Professor James Kirchner, of the University of
> California, Berkeley. 'Unfortunately, we are all completely baffled
> about the cause.'
>
> The report, published in the current issue of Nature, was carried out
> by Professor Richard Muller and Robert Rohde also from the Berkeley
> campus. They studied the disappearances of thousands of different
> marine species (whose fossils are better preserved than terrestrial
> species) over the past 500m years.
>
> Their results were completely unexpected. It was known that mass
> extinctions have occurred in the past. During the Permian extinction,
> 250m years ago, more than 70 per cent of all species were wiped out,
> for example. But most research suggested that these were linked to
> asteroid collisions and other random events.
>
> But Muller and Rohde found that, far from being unpredictable, mass
> extinctions occur every 62m years, a pattern that is 'striking and
> compelling', according to Kirchner.
>
> But what is responsible? Here, researchers ran into problems. They
> considered the passage of the solar system through gas clouds that
> permeate the galaxy. These clouds could trigger climatic mayhem.
> However, there is no known mechanism to explain why the passage might
> occur only every 62m years.
>
> Alternatively, the Sun may possess an undiscovered companion star. It
> could approach the Sun every 62m years, dislodging comets from the
> outer solar system and propelling them towards Earth. Such a companion
> star has never been observed, however, and in any case such a lengthy
> orbit would be unstable, Muller says.
>
> Or perhaps some internal geophysical cycle triggers massive volcanic
> activity every 62m years, Muller and Rohde wondered. Plumes from these
> would surround the planet and lead to a devastating drop in
> temperature that would freeze most creatures to death.
>
> Unfortunately, scientists know of no such geological cycle.
>
> 'We have tried everything we can think of to find an explanation for
> these weird cycles of biodiversity and extinction,' Muller said. 'So
> far we have failed. And, yes, we are due one soon, but I would not
> panic yet.'
>
>
>
> --
> Dorothy
>
> There is no sound, no cry in all the world
> that can be heard unless someone listens ..
>
> The Outer Limits[/color]

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  #19162  
Vecchio 25-03-2005, 19.48.42
Frank F. Matthews
 
Messaggi: n/a
Predefinito Re: Americans putting their feet up everywhere

Perhaps we will be lucky and there will be a small error allowing us
another 100 000 years. Actually for my purpose another 50 years would
be excessive and 10-15 would probably suffice.



toto wrote:
[color=blue]
> On Fri, 25 Mar 2005 06:09:31 +0000, Julie <j4julie@aol.com> wrote:
>
>[color=green]
>>Why was my comment remotely silly. I can't see a single reason why
>>the extinction of the human race would be a bad thing.[/color]
>
>
> [url]http://education.guardian.co.uk/higher/research/story/0%2C9865%2C1437163%2C00.html[/url]
>
> Bad news - we are way past our 'extinct by' date
>
> Robin McKie, science editor
> Sunday March 13, 2005
> The Observer
>
> Some say the world will end in fire, some say in ice, wrote Robert
> Frost. But whatever is to be our fate, it is now overdue.
>
> After analysing the eradication of millions of ancient species,
> scientists have found that a mass extinction is due any moment now.
>
> Their research has shown that every 62 million years - plus or minus
> 3m years - creatures are wiped from the planet's surface in massive
> numbers.
>
> And given that the last great extinction occurred 65m years ago, when
> dinosaurs and thousands of other creatures abruptly disappeared, the
> study suggests humanity faces a fairly pressing danger. Even worse,
> scientists have no idea about its source.
>
> 'There is no doubting the existence of this cycle of mass extinctions
> every 62m years. It is very, very clear from analysis of fossil
> records,' said Professor James Kirchner, of the University of
> California, Berkeley. 'Unfortunately, we are all completely baffled
> about the cause.'
>
> The report, published in the current issue of Nature, was carried out
> by Professor Richard Muller and Robert Rohde also from the Berkeley
> campus. They studied the disappearances of thousands of different
> marine species (whose fossils are better preserved than terrestrial
> species) over the past 500m years.
>
> Their results were completely unexpected. It was known that mass
> extinctions have occurred in the past. During the Permian extinction,
> 250m years ago, more than 70 per cent of all species were wiped out,
> for example. But most research suggested that these were linked to
> asteroid collisions and other random events.
>
> But Muller and Rohde found that, far from being unpredictable, mass
> extinctions occur every 62m years, a pattern that is 'striking and
> compelling', according to Kirchner.
>
> But what is responsible? Here, researchers ran into problems. They
> considered the passage of the solar system through gas clouds that
> permeate the galaxy. These clouds could trigger climatic mayhem.
> However, there is no known mechanism to explain why the passage might
> occur only every 62m years.
>
> Alternatively, the Sun may possess an undiscovered companion star. It
> could approach the Sun every 62m years, dislodging comets from the
> outer solar system and propelling them towards Earth. Such a companion
> star has never been observed, however, and in any case such a lengthy
> orbit would be unstable, Muller says.
>
> Or perhaps some internal geophysical cycle triggers massive volcanic
> activity every 62m years, Muller and Rohde wondered. Plumes from these
> would surround the planet and lead to a devastating drop in
> temperature that would freeze most creatures to death.
>
> Unfortunately, scientists know of no such geological cycle.
>
> 'We have tried everything we can think of to find an explanation for
> these weird cycles of biodiversity and extinction,' Muller said. 'So
> far we have failed. And, yes, we are due one soon, but I would not
> panic yet.'
>
>
>
> --
> Dorothy
>
> There is no sound, no cry in all the world
> that can be heard unless someone listens ..
>
> The Outer Limits[/color]

Rispondi citando Condividi su facebook
  #19163  
Vecchio 25-03-2005, 19.48.42
Frank F. Matthews
 
Messaggi: n/a
Predefinito Re: Americans putting their feet up everywhere

Perhaps we will be lucky and there will be a small error allowing us
another 100 000 years. Actually for my purpose another 50 years would
be excessive and 10-15 would probably suffice.



toto wrote:
[color=blue]
> On Fri, 25 Mar 2005 06:09:31 +0000, Julie <j4julie@aol.com> wrote:
>
>[color=green]
>>Why was my comment remotely silly. I can't see a single reason why
>>the extinction of the human race would be a bad thing.[/color]
>
>
> [url]http://education.guardian.co.uk/higher/research/story/0%2C9865%2C1437163%2C00.html[/url]
>
> Bad news - we are way past our 'extinct by' date
>
> Robin McKie, science editor
> Sunday March 13, 2005
> The Observer
>
> Some say the world will end in fire, some say in ice, wrote Robert
> Frost. But whatever is to be our fate, it is now overdue.
>
> After analysing the eradication of millions of ancient species,
> scientists have found that a mass extinction is due any moment now.
>
> Their research has shown that every 62 million years - plus or minus
> 3m years - creatures are wiped from the planet's surface in massive
> numbers.
>
> And given that the last great extinction occurred 65m years ago, when
> dinosaurs and thousands of other creatures abruptly disappeared, the
> study suggests humanity faces a fairly pressing danger. Even worse,
> scientists have no idea about its source.
>
> 'There is no doubting the existence of this cycle of mass extinctions
> every 62m years. It is very, very clear from analysis of fossil
> records,' said Professor James Kirchner, of the University of
> California, Berkeley. 'Unfortunately, we are all completely baffled
> about the cause.'
>
> The report, published in the current issue of Nature, was carried out
> by Professor Richard Muller and Robert Rohde also from the Berkeley
> campus. They studied the disappearances of thousands of different
> marine species (whose fossils are better preserved than terrestrial
> species) over the past 500m years.
>
> Their results were completely unexpected. It was known that mass
> extinctions have occurred in the past. During the Permian extinction,
> 250m years ago, more than 70 per cent of all species were wiped out,
> for example. But most research suggested that these were linked to
> asteroid collisions and other random events.
>
> But Muller and Rohde found that, far from being unpredictable, mass
> extinctions occur every 62m years, a pattern that is 'striking and
> compelling', according to Kirchner.
>
> But what is responsible? Here, researchers ran into problems. They
> considered the passage of the solar system through gas clouds that
> permeate the galaxy. These clouds could trigger climatic mayhem.
> However, there is no known mechanism to explain why the passage might
> occur only every 62m years.
>
> Alternatively, the Sun may possess an undiscovered companion star. It
> could approach the Sun every 62m years, dislodging comets from the
> outer solar system and propelling them towards Earth. Such a companion
> star has never been observed, however, and in any case such a lengthy
> orbit would be unstable, Muller says.
>
> Or perhaps some internal geophysical cycle triggers massive volcanic
> activity every 62m years, Muller and Rohde wondered. Plumes from these
> would surround the planet and lead to a devastating drop in
> temperature that would freeze most creatures to death.
>
> Unfortunately, scientists know of no such geological cycle.
>
> 'We have tried everything we can think of to find an explanation for
> these weird cycles of biodiversity and extinction,' Muller said. 'So
> far we have failed. And, yes, we are due one soon, but I would not
> panic yet.'
>
>
>
> --
> Dorothy
>
> There is no sound, no cry in all the world
> that can be heard unless someone listens ..
>
> The Outer Limits[/color]

Rispondi citando Condividi su facebook
  #19164  
Vecchio 25-03-2005, 19.48.42
Frank F. Matthews
 
Messaggi: n/a
Predefinito Re: Americans putting their feet up everywhere

Perhaps we will be lucky and there will be a small error allowing us
another 100 000 years. Actually for my purpose another 50 years would
be excessive and 10-15 would probably suffice.



toto wrote:
[color=blue]
> On Fri, 25 Mar 2005 06:09:31 +0000, Julie <j4julie@aol.com> wrote:
>
>[color=green]
>>Why was my comment remotely silly. I can't see a single reason why
>>the extinction of the human race would be a bad thing.[/color]
>
>
> [url]http://education.guardian.co.uk/higher/research/story/0%2C9865%2C1437163%2C00.html[/url]
>
> Bad news - we are way past our 'extinct by' date
>
> Robin McKie, science editor
> Sunday March 13, 2005
> The Observer
>
> Some say the world will end in fire, some say in ice, wrote Robert
> Frost. But whatever is to be our fate, it is now overdue.
>
> After analysing the eradication of millions of ancient species,
> scientists have found that a mass extinction is due any moment now.
>
> Their research has shown that every 62 million years - plus or minus
> 3m years - creatures are wiped from the planet's surface in massive
> numbers.
>
> And given that the last great extinction occurred 65m years ago, when
> dinosaurs and thousands of other creatures abruptly disappeared, the
> study suggests humanity faces a fairly pressing danger. Even worse,
> scientists have no idea about its source.
>
> 'There is no doubting the existence of this cycle of mass extinctions
> every 62m years. It is very, very clear from analysis of fossil
> records,' said Professor James Kirchner, of the University of
> California, Berkeley. 'Unfortunately, we are all completely baffled
> about the cause.'
>
> The report, published in the current issue of Nature, was carried out
> by Professor Richard Muller and Robert Rohde also from the Berkeley
> campus. They studied the disappearances of thousands of different
> marine species (whose fossils are better preserved than terrestrial
> species) over the past 500m years.
>
> Their results were completely unexpected. It was known that mass
> extinctions have occurred in the past. During the Permian extinction,
> 250m years ago, more than 70 per cent of all species were wiped out,
> for example. But most research suggested that these were linked to
> asteroid collisions and other random events.
>
> But Muller and Rohde found that, far from being unpredictable, mass
> extinctions occur every 62m years, a pattern that is 'striking and
> compelling', according to Kirchner.
>
> But what is responsible? Here, researchers ran into problems. They
> considered the passage of the solar system through gas clouds that
> permeate the galaxy. These clouds could trigger climatic mayhem.
> However, there is no known mechanism to explain why the passage might
> occur only every 62m years.
>
> Alternatively, the Sun may possess an undiscovered companion star. It
> could approach the Sun every 62m years, dislodging comets from the
> outer solar system and propelling them towards Earth. Such a companion
> star has never been observed, however, and in any case such a lengthy
> orbit would be unstable, Muller says.
>
> Or perhaps some internal geophysical cycle triggers massive volcanic
> activity every 62m years, Muller and Rohde wondered. Plumes from these
> would surround the planet and lead to a devastating drop in
> temperature that would freeze most creatures to death.
>
> Unfortunately, scientists know of no such geological cycle.
>
> 'We have tried everything we can think of to find an explanation for
> these weird cycles of biodiversity and extinction,' Muller said. 'So
> far we have failed. And, yes, we are due one soon, but I would not
> panic yet.'
>
>
>
> --
> Dorothy
>
> There is no sound, no cry in all the world
> that can be heard unless someone listens ..
>
> The Outer Limits[/color]

Rispondi citando Condividi su facebook
  #19165  
Vecchio 25-03-2005, 19.48.42
Frank F. Matthews
 
Messaggi: n/a
Predefinito Re: Americans putting their feet up everywhere

Perhaps we will be lucky and there will be a small error allowing us
another 100 000 years. Actually for my purpose another 50 years would
be excessive and 10-15 would probably suffice.



toto wrote:
[color=blue]
> On Fri, 25 Mar 2005 06:09:31 +0000, Julie <j4julie@aol.com> wrote:
>
>[color=green]
>>Why was my comment remotely silly. I can't see a single reason why
>>the extinction of the human race would be a bad thing.[/color]
>
>
> [url]http://education.guardian.co.uk/higher/research/story/0%2C9865%2C1437163%2C00.html[/url]
>
> Bad news - we are way past our 'extinct by' date
>
> Robin McKie, science editor
> Sunday March 13, 2005
> The Observer
>
> Some say the world will end in fire, some say in ice, wrote Robert
> Frost. But whatever is to be our fate, it is now overdue.
>
> After analysing the eradication of millions of ancient species,
> scientists have found that a mass extinction is due any moment now.
>
> Their research has shown that every 62 million years - plus or minus
> 3m years - creatures are wiped from the planet's surface in massive
> numbers.
>
> And given that the last great extinction occurred 65m years ago, when
> dinosaurs and thousands of other creatures abruptly disappeared, the
> study suggests humanity faces a fairly pressing danger. Even worse,
> scientists have no idea about its source.
>
> 'There is no doubting the existence of this cycle of mass extinctions
> every 62m years. It is very, very clear from analysis of fossil
> records,' said Professor James Kirchner, of the University of
> California, Berkeley. 'Unfortunately, we are all completely baffled
> about the cause.'
>
> The report, published in the current issue of Nature, was carried out
> by Professor Richard Muller and Robert Rohde also from the Berkeley
> campus. They studied the disappearances of thousands of different
> marine species (whose fossils are better preserved than terrestrial
> species) over the past 500m years.
>
> Their results were completely unexpected. It was known that mass
> extinctions have occurred in the past. During the Permian extinction,
> 250m years ago, more than 70 per cent of all species were wiped out,
> for example. But most research suggested that these were linked to
> asteroid collisions and other random events.
>
> But Muller and Rohde found that, far from being unpredictable, mass
> extinctions occur every 62m years, a pattern that is 'striking and
> compelling', according to Kirchner.
>
> But what is responsible? Here, researchers ran into problems. They
> considered the passage of the solar system through gas clouds that
> permeate the galaxy. These clouds could trigger climatic mayhem.
> However, there is no known mechanism to explain why the passage might
> occur only every 62m years.
>
> Alternatively, the Sun may possess an undiscovered companion star. It
> could approach the Sun every 62m years, dislodging comets from the
> outer solar system and propelling them towards Earth. Such a companion
> star has never been observed, however, and in any case such a lengthy
> orbit would be unstable, Muller says.
>
> Or perhaps some internal geophysical cycle triggers massive volcanic
> activity every 62m years, Muller and Rohde wondered. Plumes from these
> would surround the planet and lead to a devastating drop in
> temperature that would freeze most creatures to death.
>
> Unfortunately, scientists know of no such geological cycle.
>
> 'We have tried everything we can think of to find an explanation for
> these weird cycles of biodiversity and extinction,' Muller said. 'So
> far we have failed. And, yes, we are due one soon, but I would not
> panic yet.'
>
>
>
> --
> Dorothy
>
> There is no sound, no cry in all the world
> that can be heard unless someone listens ..
>
> The Outer Limits[/color]

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