real life wrote:
By 'more spheroid than disk' , I simply mean that when it breaks apart it's not just frisbee shaped but would still have considerable height as well. I'm not saying it's a ball.
Oh, so the term "spheroid" has no meaning?
But leaving your misuse of language aside. Please point to one impact somewhere on any planet where the object that hit has left any part of itself protruding higher than the crater walls.
rosborne979 wrote:real life wrote:tinygiraffe wrote:do you know what erosion is, yes or no?
Yes I do.
How long do you think it would take for a meteorite several miles in diameter to erode away, leaving no evidence of it's existence, based on the relative water movement at the ocean floor?
Apparently you don't know this, so I'll tell you. Meteorites several miles in diameter don't survive impact in solid form, so the meteorite itself will never be around to erode (no matter how long it would take).
Impactors beyond a certain size/mass generate enough energy on impact that they liquify or vaporize.
C'mon ros. Shhhhh.. I want to see how big a hole RL is willing to dig to build his mountain.
parados wrote:real life wrote:
By 'more spheroid than disk' , I simply mean that when it breaks apart it's not just frisbee shaped but would still have considerable height as well. I'm not saying it's a ball.
Oh, so the term "spheroid" has no meaning?
But leaving your misuse of language aside. Please point to one impact somewhere on any planet where the object that hit has left any part of itself protruding higher than the crater walls.
An interesting meteorite.
Quote:This fragment is a tiny piece of Hoba, the largest intact meteorite ever found on Earth. Hoba weighs roughly 60 tons, almost twice as much as Ahnighito, the world's third-largest meteorite mass displayed at the center of this hall. Despite its large size, Hoba did not make a crater where it fell in Namibia, Africa. Scientists are not sure why.
from
http://www.amnh.org/exhibitions/permanent/meteorites/impacts/earth.php
real life wrote:parados wrote:real life wrote:
By 'more spheroid than disk' , I simply mean that when it breaks apart it's not just frisbee shaped but would still have considerable height as well. I'm not saying it's a ball.
Oh, so the term "spheroid" has no meaning?
But leaving your misuse of language aside. Please point to one impact somewhere on any planet where the object that hit has left any part of itself protruding higher than the crater walls.
An interesting meteorite.
Quote:This fragment is a tiny piece of Hoba, the largest intact meteorite ever found on Earth. Hoba weighs roughly 60 tons, almost twice as much as Ahnighito, the world's third-largest meteorite mass displayed at the center of this hall. Despite its large size, Hoba did not make a crater where it fell in Namibia, Africa. Scientists are not sure why.
from
http://www.amnh.org/exhibitions/permanent/meteorites/impacts/earth.php
In order for a meteorite to be higher than the crater walls a crater must have been formed first. "Scientists are not sure why".
But from your link a few interesting statements
Quote:
Most of Earth's craters have been erased by the resurfacing processes of tectonic plates, the massive slabs that make up Earth's crust. Other craters have been buried beneath mud, lava or blowing sand, hidden beneath oceans or weathered away by wind and water.
Hi maporsche,
Yeah I just thought the 'no crater' thing was interesting.
Not sure if this had to be dug out, or if it was just laying on the ground when found.
But it's interesting.
real life wrote:Hi maporsche,
Yeah I just thought the 'no crater' thing was interesting.
Not sure if this had to be dug out, or if it was just laying on the ground when found.
But it's interesting.
It is interesting. If I find some time I may do some more reasearch on that rock and see if anything new has been postulated.
I wonder if it was simply a 'slow' meteor?
Do a little more research and you will find it probably came in a low angle so the atmosphere slowed it down.
http://en.wikipedia.org/wiki/Hoba_meteorite
Something that would be impossible for a 100km or a even a 10km meteor.
But none of that explains how you can possibly think a meteor of 10km or more would survive intact.
I don't know why they used that verbiage particularly. It makes it seem as if this is rare. Most of the largest IRON meteors of which I am aware left no craters. The York meteors of which the main one "Ahnighito" -"the tent" mentioned above, were not found with impact craters. You can see that particular meteor at the New York Museum of Natural history. Years ago it was kept in the Foyer; it was the first thing you saw when you walked in. In fact the Inuits of the area called it the "Iron Mountain". Obviously it was more exposed than the Hoba. They did less excavation of it than the Hoba find. Hoba was nearly completely covered.
While scientists haven't given a definitive reason these were found without impact craters, there are plausible theories. They are very dense and relatively light. Finding a small iron meteor sans crater is hardly unusual.
Ahnighito was found because the Eskimos as far away as 1500 miles had iron implements in an area where no iron deposits existed. Peary wondered how they got them. He talked the Eskimos into showing him the "secret" site.
One reason few, if any, Iron meteorites have been found in the Middle East is believed to be because the locals used them over the years for tools and weapons. This also answers the question of how primitive people could have had iron implements before fires hot enough to smelt iron were first made.
A good general book on the subject of meteors is Thunderstones and Shooting Stars.
No mysteries here, move along please, move along.
tinygiraffe wrote:i wrote:creationism had its day. we used to talk about gods and call it science, and at one point that was the bleeding edge of scientific thought. and you know what? if you want to talk about gods, that's just fine with me, if you're going to be honest... ...not delude people by pretending we don't know what EROSION is.
you wrote:...........instead you pull out the Don Rickles playbook to shove off anyone who DARES question what you've already apparently accepted as gospel.
LIE!
i wrote:but that doesnt mean the meteor existed. it means it's a more plausible explanation.
you wrote:Rather than simply admit that the idea of a huge meteorite hitting the earth and leaving no evidence is simply interesting speculation, (much less a 'fact' as you imply)......
LIE!
i don't hate you for disagreeing. you're a smug, disingenuine piece of **** that lies all the time just to annoy people.
Whoa there OJ, calm down. Try not to kill anyone. No need to pop a blood vessel over RL (and no need to get the thread locked, or get yourself shut off by the moderators).
point taken ros, but if you want to back up some jerk trolling the world half into next year, i'll thank you not to compare me to some wife-beating murderer just for being annoyed about him.
and let thecorrectresponse know you finally mentioned it, he was clearly bothered by what he saw as uneven handedness. he's good fun though, i'll be (very sincerely) glad that he won't have to take it personally now.
tinygiraffe wrote:point taken ros, but if you want to back up some jerk trolling the world half into next year, i'll thank you not to compare me to some wife-beating murderer just for being annoyed about him.
Hi TG. The OJ thing was meant to be a joke (I assume you're not
really a crazed murderer). Sorry if it didn't come off well in written form. Picture it said with a smile instead of a scowl.
Tiny:
I think ROS has a crush on RL and secretly believes everything RL has to say but can't come out and say so because:
1) RL will know how he really feels about him
2) RL can make the points MUCH more eloquently than ROS could
Now THAT may get the thread locked.
Besides that , Ros is no match for my wife.
rosborne979 wrote: No need to pop a blood vessel over RL
As I told wande, I'm just a harmless little fuzzball.
Come on you two out of that closet! You know you want to. Maybe we can get Rosie to preside over a virtual commitment ceremony!
I just realize the word "commitment" may have frightened RL. I meant the nice kind of commitment. NOT the one where they come for you with the wrap-around jacket with all the neighbors watching!
parados wrote:But none of that explains how you can possibly think a meteor of 10km or more would survive intact.
I see the distortions have started this morning.
TheCorrectResponse wrote:I just realize the word "commitment" may have frightened RL. I meant the nice kind of commitment. NOT the one where they come for you with the wrap-around jacket with all the neighbors watching!
Already got a very long term commitment of the kind I like, thanks.
She's a good one.
Maybe you're on the wrong forum, TCR.
