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Originally posted by jra
Originally posted by Trueman
Tunguska event created a big wildfire no records of personal damage as I recall. Last one, a lot of people ended at the hospital and some buildings got damaged. Sorry but evidence is debunking your post.
It did more than create a wildfire. It flattened 2,150 sq km worth of forest. Imagine if that had been a populated area and the destruction that would have caused.
But enough of this silly argument. Soylent's point, which still stands is that impacts are very rare events and we're only finding more asteroids, because more people are looking.
Originally posted by benrl
So let me get this straight, the government subsidizes farms for billions to grow corn we don't need to artificially lower corn and high fruitous corn syrup...
But finding civilization ending asteroids well that's a job for the free market...
Most ass backward thing I have ever heard.
Originally posted by OBone
A decade or so ago NASA claimed we had nothing in our solar system then or in the forseeable future to be imminently concerned about relative to Asteroids etc... . Now we discover we're literally surrounded by potential clamity and there are likely hundreds of large bodies whirling around our planet they haven't as yet located but are relatively certain exist....
Before then, NASA did NOT know of any real threats -- but they knew those threat may exist
Originally posted by jimmyx
...if there is an asteroid coming that is going to hit earth, there is not a damn thing any government or human can do about it, why? we are having enormous trouble in developing an anti-missile-missile that can hit an incoming missile traveling at most, a couple thousand miles an hour.
Originally posted by Trueman
Seriously man, do you believe them???? They work for the government.
Just because some one works for the Government or a Government agency doesn't automatically make them a liar.
With modern computer programmes that can simulate trajectories and reconstruct the night sky thousands of years ago the researchers have established what the Planisphere tablet refers to. It is a copy of the night notebook of a Sumerian astronomer as he records the events in the sky before dawn on the 29 June 3123 BC (Julian calendar). Half the tablet records planet positions and cloud cover, the same as any other night, but the other half of the tablet records an object large enough for its shape to be noted even though it is still in space. The astronomers made an accurate note of its trajectory relative to the stars, which to an error better than one degree is consistent with an impact at Köfels.
The observation suggests the asteroid is over a kilometre in diameter and the original orbit about the Sun was an Aten type, a class of asteroid that orbit close to the earth, that is resonant with the Earth's orbit. This trajectory explains why there is no crater at Köfels. The in coming angle was very low (six degrees) and means the asteroid clipped a mountain called Gamskogel above the town of Längenfeld, 11 kilometres from Köfels, and this caused the asteroid to explode before it reached its final impact point. As it travelled down the valley it became a fireball, around five kilometres in diameter (the size of the landslide). When it hit Köfels it created enormous pressures that pulverised the rock and caused the landslide but because it was no longer a solid object it did not create a classic impact crater.
Mark Hempsell, discussing the Köfels event, said: "Another conclusion can be made from the trajectory. The back plume from the explosion (the mushroom cloud) would be bent over the Mediterranean Sea re-entering the atmosphere over the Levant, Sinai, and Northern Egypt.
"The ground heating though very short would be enough to ignite any flammable material - including human hair and clothes. It is probable more people died under the plume than in the Alps due to the impact blast."