What Really Killed The Dinosaurs?
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Did you know?
" About 2,000 objects massive enough (1km in diameter) to cause global catastrophe are known to cross Earth's orbit. The impact of just one would wipe out 25% of humanity.
" Pea-sized meteoroids hit Earth at a rate of 10 per hour, 1km asteroids strike on average once every 100,000 years.
" Whatever caused the extinction of the dinosaurs also caused the death of around 70% of all of the species on the planet.
With its exciting mix of dinosaurs, death and outer space, the whole world loved the impact theory - it is now generally accepted as the truth. But new research is uncovering a different storyÂ…
Could one of the best known and most glamorous scientific theories be wrong? Until recently most scientists thought they knew what killed off the dinosaurs. It was a 10 kmwide meteorite which smashed into Yucatan in Mexico. It caused world-wide forest fires, tsunamis several kilometres high, and an 'impact winter' - in which dust blocked out
the sun for months or years. It was thought the dinosaurs were blasted, roasted, and frozen to death, in that order.
But now there is increasing evidence the impact theory could be wrong. The suggestion has generated one of the bitterest scientific rows of recent times. What Really Killed The Dinosaurs sets out to sort the fact from the fiction.
The impact theory was beautifully simple and hugely appealing. But a team of scientists led by Professor Gerta Keller of Princeton has uncovered a series of geological clues which suggests the truth may be far more complicated. She believes that the crater in the Yucatan is too old to have killed off the dinosaurs. That opinion sparked a massive
row, as the supporters of the impact theory such as Professor Jan Smit of Amsterdam rubbished her ideas.
But Keller's work is attracting increasing support. A range of scientists have begun to question other hypotheses connected with the impact theory. They say the evidence just does not support the belief that wildfires raged all around the world, that dinosaurs perished amid acid rain as strong as battery acid, and that an 'impact winter' caused a massive and sustained drop in temperature.
With stunning CGI graphics and the help of all the key scientists, Horizon explores the growing body of evidence which raises fundamental questions about the impact theory. It seems that the death of the dinosaurs may have been more complex than we had previously thought.
"This documentary perks up a pretty dry subject with plenty of Walking With Dinosaurs-style footage Â… But surprise star of the show is Britain's own Claire Belcher, a boffin from the University of London who turns up with an even more startling discovery of her own."
Daily Mirror
"Complex arguments laid out clearly Â… this was the best Horizon in ages." Independent -
How come Scientists can be wrong one?
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but its also true that there was a huge winter claimed by the impact theory.. right? if not that, than what?
anyways, i think science can be proven wrong, and new discoveries overwrite old ones. but in reality, its not always so beautifully written. so its not surprising scientists could be wrong. -
Our relatives from another part of the universe
If that meteor theory is correct...wouldn't all humans on the planet be killed too?
Raise your right hand with inner palm face them...this is known as the universal "HI"
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No one really knows what happened so many million years ago... All those "theories" are only inference or deductive guessesOriginally posted by Honeybunz:How come Scientists can be wrong one? -
Maybe they decided to go for True Democracy ??
When dinosaurs vote for elimination of meat eaters , they ate all vegetable found on the planet and starved to death. -
wow genius of the day, back in the age of dinasours got human, someone give this guy a prize!!Originally posted by maggot:Our relatives from another part of the universe
If that meteor theory is correct...wouldn't all humans on the planet be killed too?
Raise your right hand with inner palm face them...this is known as the universal "HI" -
i guessed that the asteroid impact doesnt only cause forest fires, also it'll alter earth's orbiting axis around the sun, thus changing earth's original climate dramatically.
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watch the documentary on CNA now
they're talking about it now -
btw, i think Gerta Keller's got a point...
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wat about noad and the ark ???
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i'm thinking, why couldn't creation and evolution exist side-by-side
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is/are there any evidence/s that such had happened?Originally posted by the Bear:i'm thinking, why couldn't creation and evolution exist side-by-side -
who knows?
coz the evolutionists claim evolution happens.. however, until today, they have not found a single fossil which is "in between"
you know.. if evolution happens, it happens over many centuries and the change would be slow.. but there are no "in between" fossils, just distinct fossils of distinct species...
while creation, you can't even begin to look for evidence in that
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just to side track: who saw the monkey enter the restaurant?
ans: the diners saw(dinosaur) -
haha...true, can't agree more.
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actually sometimes i wonder will human beings be extinct too??
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seriously, if we keep going, we will...
it happened to the Mayans...
when we are unable to produce enough to feed the growing population, there will be a die-back..
already, planet earth is feeling the strain, yet the idiot economists and politicians keep telling us to increase the population...Originally posted by nameuser:actually sometimes i wonder will human beings be extinct too?? -
Stupidity was the cause. Barney was one of them.
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i thought teletubbies?Originally posted by ditzy:Stupidity was the cause. Barney was one of them. -
Are teletubbies dinosaurs?Originally posted by kaobeikaobu:i thought teletubbies? -
yessssssssssssssssssssssssss!!!!!!!!!!!!Originally posted by ditzy:Are teletubbies dinosaurs? -
ok, then that's another.Originally posted by kaobeikaobu:yessssssssssssssssssssssssss!!!!!!!!!!!! -
u see, they were gay friends, just like winnie the pooh who has guy friends only...Originally posted by ditzy:ok, then that's another. -
Yah, winnie the pooh is gay. Just like errrr.....