Register | Sign In


Understanding through Discussion


EvC Forum active members: 65 (9164 total)
2 online now:
Newest Member: ChatGPT
Post Volume: Total: 916,913 Year: 4,170/9,624 Month: 1,041/974 Week: 368/286 Day: 11/13 Hour: 0/0


Thread  Details

Email This Thread
Newer Topic | Older Topic
  
Author Topic:   Too Many Meteor Strikes in 6k Years
Faith 
Suspended Member (Idle past 1474 days)
Posts: 35298
From: Nevada, USA
Joined: 10-06-2001


Message 48 of 304 (210644)
05-23-2005 2:45 PM
Reply to: Message 46 by ringo
05-23-2005 2:37 PM


Re: Tunguska
Thank you. Will check it out.
Must take a break.
Carry on, gang.

This message is a reply to:
 Message 46 by ringo, posted 05-23-2005 2:37 PM ringo has not replied

Faith 
Suspended Member (Idle past 1474 days)
Posts: 35298
From: Nevada, USA
Joined: 10-06-2001


Message 51 of 304 (210666)
05-23-2005 3:41 PM
Reply to: Message 49 by arachnophilia
05-23-2005 2:48 PM


Of course it was laid down sequentially. What's the problem with angular conformities?
=======
the problem is that most yec's insist that the entire column was laid down in one event. angular unconformities disprove that.
It was laid down sequentially over SOME period of time DURING that one event that lasted after all a year and who knows how long it took the flood to recede, leaving many layers of stuff one at a time.
also, if you stack the geological column from permian to cretacious, and divide by 6k years, you get about 20+ feet of rock per yer, on average. and that's not the entire column.
Sequential doesn't mean it built up on the ridiculous principle of accumulated deposits for each long age of time. A layer was no doubt laid down all at once, and others laid down on top of it separately, after who knows how long a gap, but not years.
but if there was some mechanical explanation for why dinosaurs are only found in certain layers,
=====
like hydrologic sorting? not with angular unconformities. besides, no mechanism other than "god did it to mess with us" has ever been proposed.
Angular unconformities occur sometime during the process. A bunch of layers are laid down, then a big bubble of magma displaces a block of layers and upends them, a whole nother bunch of layers slide over the uptilted ones, etc etc etc. Most unconformities, however, clearly happened AFTER the whole column was laid down.
it also proves, if you can follow logic, that the layers with dinosaurs in them were laid down before the layer without dinosaurs in them. and if the division is based around an asteroid event, it doesn't take a leap of faith to think that the asteroid caused the extinction.
IF the timeline theory is correct it would follow, but if it happened in a much shorter period of time there is no necessary relation. Those layers did not build up slowly and gradually over long aeons, sorry. It makes me laugh just thinking about it.
Done
===
no. not really. you haven't actually demonstrated a familiarity with the data at all. you've just done a few backflips in the mental gymnastics arena, not legitimized it as an olympic sport.
Don't recall claiming such a thing. This started out as "just a thought." It remains "just a thought."
But thanks for noting that I can do a decent mental backflip! In an arena in enemy camp surrounded by bloodthirsty evos yet!
This message has been edited by Faith, 05-23-2005 03:42 PM
This message has been edited by Faith, 05-23-2005 03:44 PM

This message is a reply to:
 Message 49 by arachnophilia, posted 05-23-2005 2:48 PM arachnophilia has replied

Replies to this message:
 Message 136 by arachnophilia, posted 05-25-2005 4:31 PM Faith has not replied

Faith 
Suspended Member (Idle past 1474 days)
Posts: 35298
From: Nevada, USA
Joined: 10-06-2001


Message 56 of 304 (210675)
05-23-2005 3:59 PM
Reply to: Message 52 by Brian
05-23-2005 3:43 PM


Can anyone tell me how the Egyptians were able to miss this world wide Flood?
How come we have a continuous record from Egypt from c.3000 BCE right through the Flood period with the flood being in the Middle of the 5th dynasty period?
I wouldn't trust secular history myself.
Quality entertainment, you cannot make this stuff up!
Sure you can. It's done all the time. The whole evo show is made up, imaginative stitching together of clues they call facts but aren't. A laugh a minute.
EDIT: SORRY, ANSWERED BEFORE I SAW THE OFF-TOPIC NOTE.
This message has been edited by Faith, 05-23-2005 04:00 PM

This message is a reply to:
 Message 52 by Brian, posted 05-23-2005 3:43 PM Brian has not replied

Faith 
Suspended Member (Idle past 1474 days)
Posts: 35298
From: Nevada, USA
Joined: 10-06-2001


Message 57 of 304 (210678)
05-23-2005 4:04 PM
Reply to: Message 50 by mikehager
05-23-2005 3:15 PM


Re: Not 6000 years, 4000.
There is simply no evidence for a flood as described in Christian mythology. Throwing massive cometary and meteor bombardment into the mix doesn't help.
In this discussion we are taking the flood as a given.
You have ideas of what kind of impact they would create but nobody witnessed them to say for sure.
====
Sure we do. it's called physics. The comet weighs a certain amount, it is going at a certain speed (both qualities easily estimable within a range by applying astronomy). That means it's going to hit with calculable force.
No doubt, but nevertheless the RESULT of the impact, the effect of debris, dust, steam etc., can't be known with all that certainty. There are other variables in the mix that can affect those results.

This message is a reply to:
 Message 50 by mikehager, posted 05-23-2005 3:15 PM mikehager has replied

Replies to this message:
 Message 58 by CK, posted 05-23-2005 4:09 PM Faith has replied
 Message 61 by mikehager, posted 05-23-2005 4:27 PM Faith has replied
 Message 69 by mark24, posted 05-23-2005 7:12 PM Faith has replied
 Message 71 by NosyNed, posted 05-23-2005 7:38 PM Faith has replied

Faith 
Suspended Member (Idle past 1474 days)
Posts: 35298
From: Nevada, USA
Joined: 10-06-2001


Message 59 of 304 (210681)
05-23-2005 4:12 PM
Reply to: Message 58 by CK
05-23-2005 4:09 PM


Re: Not 6000 years, 4000.
But if we take the flood as a given - then there is really nothing to discuss - it's moot.
No, we're discussing how comets, meteors and meteorites might have affected things if they occurred during a flood which is taken as a given.
If we want to claim that Noah and his family were not burnt to death then we really need the intervention of God - surely meaning this thread should be over in the faith section (or whatever we call it now).
I'm happy to move over there. Whatever.
This message has been edited by Faith, 05-23-2005 04:13 PM

This message is a reply to:
 Message 58 by CK, posted 05-23-2005 4:09 PM CK has not replied

Replies to this message:
 Message 63 by Trixie, posted 05-23-2005 4:35 PM Faith has replied

Faith 
Suspended Member (Idle past 1474 days)
Posts: 35298
From: Nevada, USA
Joined: 10-06-2001


Message 73 of 304 (210736)
05-23-2005 7:46 PM
Reply to: Message 34 by arachnophilia
05-23-2005 2:27 PM


Re: Not 6000 years, 4000.
Well I'm postulating they hit in deep water. That changes the picture of debris and dust clouds, formulae notwithstanding.
===
quote:
the k-t event hit deep water. it still killed something like 90% of the life on earth. like i said, water doesn't stick around in temperatures of several thousand degrees.
BUT all that is nothing but speculation. You don't KNOW any of that. It's sheer hypothesis. You see dead dinosaurs here and there in layers of sediments, you see an absence of dinosaurs in what is hypothesized to be the next layer up (since as a matter of fact this isn't how they show up everywhere in reality), you see a layer of iridium, you decide a big meteor wiped out the dinosaurs, big enough to wipe out 90% of life -- ONLY because you see all those dead reptilian creatures and you hypothesize the magnitude that would account for it. How do you KNOW it "hit deep water?" And WHAT "hit deep water?" How big is its crater? Can you show it to me? Is it in the same layer the dinosaurs are in?
You speak of this event as if it were a witnessed and documented reality, but it's NOTHING but an imaginative scenario put together to account for a bunch of other hypotheses about the scant actual facts of a bunch of dinosaur bones and a thin layer of iridium. And MAYBE a crater --? Does iridium float by the way?
Great. And it absolutely devastated the climate worldwide, right? Covered the whole earth in dust and debris, right? And killed most of the eyewitnesses, right?
quote:
it also didn't leave a crater. we're talking about things that actually make craters, and some of them several hundred miles wide (like the k-t one). so the example of effects similar to a small nuclear bomb is rather magified with the bigger rocks that we're talking about.
Sure, but this is a big planet. That itty bitty event really WAS itty bitty, very local, hardly worth mentioning. All this stuff about debris and dust saturating the atmosphere -- well, nobody has seen anything like that.
I thought it was brought up to impress me with what a devastating effect such an event would have had on Noah and company. Now it turns out it's a big nothing.
Even all the nuclear testing that was done above ground in the fifties didn't produce half the results we might expect. The effects were surprisingly local, or traceable by wind patterns, devastating to downwinders but nevertheless confined to that area, without the worldwide atmospheric effect some talked about. I would never want to minimize those tests, including the effects of the underground testing afterward, but the fact is there were 100 atmospheric (and 828 underground) bombs tested in a short period of time just at the one Nevada Test Site, the atmospheric ones all within the 50s, all in one location, and their effect seems to have been a lot less than dramatic.
Any one of them COULD wipe out a city, or do a lot of damage, but if these meteors hit in uninhabited places or underwater in a worldwide flood, nobody's yet convinced me they'd do anything like you predict.
http://www.shundahai.org/nevada_test_site_history.htm
What would you have predicted for these events? How do they compare with the meteors you are talking about?
So far I haven't heard anything that supports the idea that they would necessarily wreck the atmosphere and kill all living things
quote:
ok, well, what do you suppose would happen if a planet-buster hit us? flood or not. you think an asteroid measured in cubic MILES would make a huge dent in the earth, and NOT kick up dust?
I don't know. Can you point to one?
I'd guess it would cause some major effects for a wide area near where it hit but why would the effects be expected to be worldwide?
I don't get this steam idea either. So some great quantity of water turns to steam. Again the area may be quite large, a matter of oh a hundred or even two or three hundred square miles? Make it a few thousand. But that's NOTHING on this planet. AND the atmosphere would cool it.
This message has been edited by Faith, 05-23-2005 07:51 PM
This message has been edited by Faith, 05-23-2005 07:59 PM

This message is a reply to:
 Message 34 by arachnophilia, posted 05-23-2005 2:27 PM arachnophilia has replied

Replies to this message:
 Message 138 by arachnophilia, posted 05-25-2005 6:02 PM Faith has not replied
 Message 146 by Randy, posted 05-25-2005 8:41 PM Faith has not replied

Faith 
Suspended Member (Idle past 1474 days)
Posts: 35298
From: Nevada, USA
Joined: 10-06-2001


Message 74 of 304 (210740)
05-23-2005 8:25 PM
Reply to: Message 69 by mark24
05-23-2005 7:12 PM


The flood as a given
In this discussion we are taking the flood as a given.
quote:
No, we are not. I have asked you for the evidence that can be "interpreted" as evidence of a global flood. If you can't provide any, then you have no business accepting it as a reality, much less talking about it as a given here.
No, I brought it up to suggest how all those meteors POSSIBLY COULD have hit within a very short period -- a lot shorter than 6K years as a matter of fact -- without killing everything on the planet, which was the task set by the opening post. IF there was such a flood THEN the effects predicted in the opening post either would not have occurred or would not have had the devastating effects predicted. Remember, the thread is challenging the idea of a young earth. It is fair to answer such a challenge with a hypothesis from the YEC position.

This message is a reply to:
 Message 69 by mark24, posted 05-23-2005 7:12 PM mark24 has replied

Replies to this message:
 Message 81 by mark24, posted 05-23-2005 9:59 PM Faith has not replied

Faith 
Suspended Member (Idle past 1474 days)
Posts: 35298
From: Nevada, USA
Joined: 10-06-2001


Message 75 of 304 (210742)
05-23-2005 8:29 PM
Reply to: Message 61 by mikehager
05-23-2005 4:27 PM


We are not arguing about the flood
In this discussion we are taking the flood as a given.
quote:
We are not doing anything of the sort, or at least I am not. You are taking the flood as a given, as it seems is standard practice with you. I and others are trying to show you why that idea doesn't work in the real world.
That is not what this thread is about. It is not about the evidence for the flood, it's about whether or not a bombardment of meteors would have the devastating effects predicted in the first post, and the flood is my suggestion why they might not.

This message is a reply to:
 Message 61 by mikehager, posted 05-23-2005 4:27 PM mikehager has replied

Replies to this message:
 Message 91 by mikehager, posted 05-24-2005 12:36 AM Faith has not replied

Faith 
Suspended Member (Idle past 1474 days)
Posts: 35298
From: Nevada, USA
Joined: 10-06-2001


Message 76 of 304 (210743)
05-23-2005 8:36 PM
Reply to: Message 61 by mikehager
05-23-2005 4:27 PM


Re: Not 6000 years, 4000.
No one saw this event except for our Japanese friend (and let's assume he isn't going to talk) so we have no eyewitness information, yet we can make all sorts of good determinations about it.
The same is true with massive cometary impacts, only the numbers are a good deal larger.
I have acknowledged all that. You can predict the impact itself. The fact remains there are other variables that so far I haven't heard taken into account for the impact of this bombardment of meteors, such as the effect of preexisting atmospheric conditions, wind, rain, heat, cold, and so far the idea that the effect would be worldwide is simply not convincing. Sure, you can say a lot about the immediate impact, the depth of the crater, the effect on local rock and water, but beyond that the hypotheses don't cut it.

This message is a reply to:
 Message 61 by mikehager, posted 05-23-2005 4:27 PM mikehager has not replied

Faith 
Suspended Member (Idle past 1474 days)
Posts: 35298
From: Nevada, USA
Joined: 10-06-2001


Message 79 of 304 (210749)
05-23-2005 9:08 PM
Reply to: Message 63 by Trixie
05-23-2005 4:35 PM


Science or faith etc
I've had another look at the opening post of this thread and, while it does seem a bit garbled, it seems to be suggesting that the number of detected large strikes occurring over 6-10K years would have wiped out humanity. I have to say that this does make sense, since humanity would have been "in at the beginning" so to speak if we take the Genesis version of creation literally.
quote:
Faith, you're proposing an even more extreme scenario - that all of the mega strikes happened in a single year!!! To back this up you're going to have to tackle the physics of meteorite strikes of this magnitude and that doesn't belong in the faith section, it belongs in the science section.
Yes, it is a more extreme scenario. I proposed it as a possible answer to the opening challenge -- you can't kill off humanity if the strikes occurred when the flood was already killing off humanity.
He's challenging the young earth scenario. I'm answering from the position of the YEC.
I believe the burden of proof is on the challenger. I didn't find his hypothesis convincing and so far he hasn't been around to defend it, and other attempts to defend it haven't been all that convincing either.
As the conversation has progressed, my impression is that these meteor strikes just don't seem that huge in relation to the size of this planet, even the biggest ones and of course the huge ones were few. I'll have to check the list again to see how many were how big.
But remember, the flood killed all living things except what was on the ark. That was my first thought -- any lethal effects of the meteorites would be rendered inconsequential by two factors of the flood -- the water itself which MUST absorb some of the impact expected by our first poster, and the reduction of all life to one ark floating on the water, floating apparently at a safe distance from any of the direct strikes to judge from Jar's link to the list of strikes. I also suggested that it possibly didn't all happen in that first year even if it was associated with the whole flood catastrophe, but over some time afterward too. Most of the strikes on Jar's list occurred in parts of the world very far from the turf of Noah and his family.
You can't just take the flood as a "given" - its up to you to provide evidence that numerous huge meteorite strikes in water wouldn't have par-boiled Noah and his floating menagerie.
Actually I believe it's quite reasonable to posit an event like the flood as a given for the sake of exploring possible effects of such an event, which is well known to be believed by YECs, and to use it to answer a challenge to the YEC view.
In any case I HAVE given some ideas in answer to the idea that Noah would have been "par-boiled," such as: Even the biggest strike mentioned so far shouldn't necessarily affect more than an area of some few thousand cubic miles, say, with steam, or dust, expecially if it occurred underwater, and probably a much smaller area, which doesn't have to affect Noah at all. The idea of heat generated doesn't seem to take into account the cool atmosphere of this planet that's much bigger than all the meteors combined, or the size of the cool ocean. At most a gigantic meteor would heat a few hundred cubic miles of water, which would spread out to become a faint warmth in a few thousand cubic miles of cold ocean, hardly even a noticeable temperature change as it spread out even farther into cooler water.
I think it's up to the challenger(s) to prove that the strikes would have the effect you suggest. So far it's been asserted but not proved. I don't have the statistics but those who think they do should be able to state them articulately and make them understandable and convincing to prove me wrong.
I'm enjoying the science in this thread so far and I would hate to see it disappear into faith section where the science stops and the wild guessing begins.
As I said, it doesn't matter to me. I don't change my modus to suit the prevailing wind, it's up to the ones who think that so far this isn't science anyway.

This message is a reply to:
 Message 63 by Trixie, posted 05-23-2005 4:35 PM Trixie has not replied

Replies to this message:
 Message 84 by DrJones*, posted 05-23-2005 10:47 PM Faith has replied
 Message 87 by edge, posted 05-23-2005 11:31 PM Faith has not replied
 Message 92 by wnope, posted 05-24-2005 12:36 AM Faith has replied

Faith 
Suspended Member (Idle past 1474 days)
Posts: 35298
From: Nevada, USA
Joined: 10-06-2001


Message 88 of 304 (210766)
05-23-2005 11:53 PM
Reply to: Message 84 by DrJones*
05-23-2005 10:47 PM


Re: Science or faith etc
the water itself which MUST absorb some of the impact expected by our first poster,
False. Water is incommpressible, any force imparted to the water by an impact would be transmitted throughout the water.
Others have made this point, which I'm happy to concede, but what matters more than the impact is the "dust and debris" raised by the impact into the atmosphere, which is what I figure would be reduced by water, because that's what's going to affect things around the world, so they say, more than the impact itself.

This message is a reply to:
 Message 84 by DrJones*, posted 05-23-2005 10:47 PM DrJones* has replied

Replies to this message:
 Message 89 by DrJones*, posted 05-24-2005 12:04 AM Faith has replied

Faith 
Suspended Member (Idle past 1474 days)
Posts: 35298
From: Nevada, USA
Joined: 10-06-2001


Message 90 of 304 (210768)
05-24-2005 12:04 AM
Reply to: Message 71 by NosyNed
05-23-2005 7:38 PM


Re: Assuming the flood
They mud cushioned the fall.
No, the mud kept down the dust factor. Even if it instantly turns to dust the whole earth's being wet is going to keep down the dust factor. So is any moisture in the atmosphere and there should be a lot of it.
Also, thank you for stating what I was trying to say. Yes, we are assuming the flood. Now tell mark24 that. You may defeat the idea but at the getgo it is being assumed.
I am realizing that I've been using the word "impact" in two different senses that would be good to sort out: one to refer to the force of the strike, the other in the colloquial sense to refer to the effects of the events over time. So, reducing the impact doesn't necessarily mean reducing the force of the blow, but could mean reducing the consequences in such things as the dust and debris in the atmosphere. I know I've used it in both senses but now I'd have to go back and figure out where. I don't think I meant the mud would cushion the fall for instance, just not raise so much dust.
This message has been edited by Faith, 05-24-2005 12:05 AM
This message has been edited by Faith, 05-24-2005 12:10 AM

This message is a reply to:
 Message 71 by NosyNed, posted 05-23-2005 7:38 PM NosyNed has not replied

Faith 
Suspended Member (Idle past 1474 days)
Posts: 35298
From: Nevada, USA
Joined: 10-06-2001


Message 94 of 304 (210773)
05-24-2005 12:59 AM
Reply to: Message 92 by wnope
05-24-2005 12:36 AM


Re: evidence or assertion
The meteor strikes weren't that lethal."
Like that a huge meteorite that smashedinto the Earth 251 million years ago and caused the greatest extinction event in the planet's history, killing about 90 percent of all life.
I guess I can't expect you to have read all my posts in this thread but I already answered this somewhere back there. There is no real proof of this, it is all a hypothesis in the service of other hypotheses based on the barest of actual facts which are completely inscrutable in themselves. I will try to find my post and link it for you.
or the fact that it is estimated a mass-extinction meteor struck once every 5 million years or so.
Ditto. Nothing but an imaginative scenario based on other imaginative scenarios, with no empirical evidence for it whatever.
And large meteors would have caused Tsunamis that reached across the world if it was during the flood.
Yes, well so many have said, and for all I know it's possible and would in fact be a big problem for an ark, but so far all anyone has done is assert that it's so without any attempt to explain to me the forces involved. Heck I can assert all kinds of things too as ought to be apparent by now, only at least I have some arguments for mine, so they aren't JUST assertions.
Take into account that these are all dated to be at very different times, not all in the same year. I'm not sure how you can justify all the meteors in earths history hitting then.
This started out as "just a thought." I am surprised that it went anywhere at all. I would have predicted others would answer the first post and my passing thought would just evaporate. I have no major investment in it at all. But since the answers to me have ranged from scorn to unsubstantiated assertion, with hardly anything in the way of actual evidence, I've taken a certain fond interest in my humble little argument.
But first I would like to go back and do some thinking about those links you posted in your first message. I really want to get to that tomorrow if I can.
This message has been edited by Faith, 05-24-2005 01:00 AM

This message is a reply to:
 Message 92 by wnope, posted 05-24-2005 12:36 AM wnope has not replied

Replies to this message:
 Message 95 by DrJones*, posted 05-24-2005 1:23 AM Faith has not replied
 Message 96 by ringo, posted 05-24-2005 1:27 AM Faith has replied
 Message 97 by NosyNed, posted 05-24-2005 2:27 AM Faith has replied
 Message 98 by Nighttrain, posted 05-24-2005 7:19 AM Faith has replied
 Message 99 by Randy, posted 05-24-2005 8:07 AM Faith has replied

Faith 
Suspended Member (Idle past 1474 days)
Posts: 35298
From: Nevada, USA
Joined: 10-06-2001


Message 104 of 304 (210989)
05-24-2005 9:42 PM


Meteorite:Tsumani causes and effects
OK. It will take me a while to catch up with this thread. This post is to answer the claims that a meteorite hitting in the ocean would generate a tsunami and that the tsunami would cause severe effects on any supposed ship/ark floating on the ocean.
The information I've discovered is that
1) NO KNOWN METEORITE IMPACTS HAVE PRODUCED A TSUNAMI. ONE is postulated nevertheless to have done so 65 million years ago -- sorry, not postulated, "KNOWN" since modern science KNOWS stuff like this, right? even though all REALLY TRULY EMPIRICALLY KNOWN historic meteorite impacts have not caused a tsunami.
3) SHIPS AT SEA DO NOT NORMALLY EVEN NOTICE A PASSING TSUNAMI. This is the most important information to answer those who claimed the effects would be devastating to Noah's ark. The ark was a huge ship by the way. 450' x 75' x 45' with three stories.
3) TSUNAMIS HAVE VARIABLE EFFECTS: This is an academic point if we're talking about effects while the Flood covered the entire earth, but it might have relevance to Noah's having arrived on land before the flood fully receded and meteorites landed in the ocean: Tsunami effects are variable, may cause damage in one place, not in one nearby, so that there is no absolute certainty about how they might affect a given location 4000+ years ago.
Interesting reading:
No EMPIRICALLY KNOWN meteorite-caused tsunamis:
While no historic examples of meteorite impacts are known to have produced a tsunami, the apparent impact of a meteorite at the end of the Cretaceous Period, about 65 million years ago near the tip of what is now the Yucatan Peninsula of Mexico, produced tsunami that left deposits all along the Gulf coast of Mexico and the United States.
The effects are variable:
A small tsunami at one beach can be a giant a few miles away. Do not let modest size of one make you lose respect for all.
http://www.tulane.edu/~sanelson/geol204/tsunami.htm
Variable effects cont'd.
Where sea-floor topography and orientation are optimal for a tsunami from a given direction, the wave can hump up into a breaking wall of water 9 meters (30 feet) or more high, and rush onto shore to cause enormous destruction. Nearby coastal points, where the bottom configuration is different, may record the same wave only as a rapid surge and withdrawal of water, with much lower height.
http://www.sles-riyadh.org/tsunami.htm
People in ships normally do not notice tsunamis
... Tsunami wave heights at sea are usually less than one meter, and the waves are not frequently noticed by people in ships. As tsunami waves approach the shallow water of the coast, their heights increase and sometimes exceed 20 meters. ...
... Ships at sea cannot detect a passing tsunami, nor can the waves be seen from aircraft. While passing through deep oceans, a tsunami consists of a series of waves that are only a few feet high and a hundred miles or more apart. These waves typically travel at speeds of about 600 mph.
... Tsunamis only really become dangerous as they approach land
As they reach shallow water, the waves slow down but greatly increase in height, and the distance between them shrinks. When the tsunami finally strikes the coast, the waves may crest to heights of 100 feet and travel inland at speeds of 30 mph. A series of waves may reach the coast at intervals of 5 to 40 minutes; the first wave is frequently not the largest.
... To someone on a ship in the open ocean, the passage of a tsunami wave would barely elevate the water surface. However, when it reaches shallower water near the coastline and "touches bottom," the tsunami wave increases in height, piling up into an enormous wall of water. As a tsunami approaches the shore, the water near shore commonly recedes for several minutes -- long enough for someone to be lured out to collect exposed sea shells, fish, etc. -- before suddenly rushing back toward land with frightening speed and height.
USGS: Volcano Hazards Program Glossary
This message has been edited by Faith, 05-24-2005 09:44 PM

Replies to this message:
 Message 105 by jar, posted 05-24-2005 10:08 PM Faith has not replied
 Message 106 by Randy, posted 05-24-2005 10:22 PM Faith has replied
 Message 109 by Harlequin, posted 05-24-2005 10:45 PM Faith has replied

Faith 
Suspended Member (Idle past 1474 days)
Posts: 35298
From: Nevada, USA
Joined: 10-06-2001


Message 110 of 304 (211002)
05-24-2005 10:53 PM
Reply to: Message 106 by Randy
05-24-2005 10:22 PM


Re: Meteorite:Tsumani causes and effects
No I have not yet studied your post. My plan is to catch up starting back a ways. However, what I posted so far about EMPIRICAL KNOWLEDGE OF tsunamis is that they aren't even NOTICED by ships at sea -- even very big tsunamis -- and there is no record of a meteorite causing one.
In other words, your calculations refer to mere possibilities, nothing that has been observed EMPIRICALLY. You may or may not have anticipated all the variables. What are the odds that you have? Sure, science has the ability to predict many things but in this kind of case there is no way to test, replicate or falsify predictions such as yours, which has historically been the accepted approach to science. It can't be done in this kind of case, which makes your thoughts NONEMPIRICAL, simply hypothetical.
Of course you COULD be right that a gigantic meteorite WOULD have the effects you predict and I'll get to that eventually. Even with an impact that large, however, the greater the distance from the ship the less the effect. Yes, I know you've said more than that but I have a few things I want to get to first.
Thanks.

This message is a reply to:
 Message 106 by Randy, posted 05-24-2005 10:22 PM Randy has not replied

Replies to this message:
 Message 116 by MangyTiger, posted 05-24-2005 11:48 PM Faith has not replied
 Message 121 by roxrkool, posted 05-25-2005 12:29 AM Faith has replied

Newer Topic | Older Topic
Jump to:


Copyright 2001-2023 by EvC Forum, All Rights Reserved

™ Version 4.2
Innovative software from Qwixotic © 2024