Register | Sign In


Understanding through Discussion


EvC Forum active members: 65 (9164 total)
5 online now:
Newest Member: ChatGPT
Post Volume: Total: 916,422 Year: 3,679/9,624 Month: 550/974 Week: 163/276 Day: 3/34 Hour: 1/0


Thread  Details

Email This Thread
Newer Topic | Older Topic
  
Author Topic:   Something BIG is coming! (AIG trying to build full sized ark)
slevesque
Member (Idle past 4662 days)
Posts: 1456
Joined: 05-14-2009


Message 142 of 261 (613379)
04-24-2011 10:17 PM
Reply to: Message 140 by ringo
04-24-2011 10:06 PM


Re: That boat won't float ... really ?
You showed a claim that those calculations have something to do with the real world. I can calculate the IQ of a unicorn but it isn't evidence of anything.
No, I showed the calculations and you are free to look if they have something to do with the real world. They gave all their references:
Comstock, E.N. and Keane, R.G., 1980. Seakeeping by design. Naval Engineer’s Journal 92(2).
Hosoda, R., Kunitake, Y., H. and Nakamura, H., 1983. A method of evaluation of seakeeping performance in ship design based on mission effectiveness concept. PRADS 83, Second International Symposium, Tokyo and Seoul.
Bales, N.K., 1980. Optimizing the seakeeping performance of destroyer type hulls, 13th ONR.
Hong, S.W. et al., 1990. Safety evaluation of ships for the improvement of port control regulation. Korea Research Institute of Ships and Ocean Engineering Report, BS1783-1364D.
Salvesan, N., Tuck, E.O. and Faltisen, O. 1970. On the motion of ships in confused seas. Transactions of the Society of Naval Architects and Marine Engineers, 78.
Ochi, M. K., 1964. Prediction of occurence and severity of ship slamming at sea. Fifth Symposium on Naval Hydrodynamics, Bergen.
What you'll find, I'm pretty sure, is that they didn't pull formula's out of their ass.

This message is a reply to:
 Message 140 by ringo, posted 04-24-2011 10:06 PM ringo has replied

Replies to this message:
 Message 143 by ringo, posted 04-24-2011 10:29 PM slevesque has not replied

  
slevesque
Member (Idle past 4662 days)
Posts: 1456
Joined: 05-14-2009


Message 147 of 261 (613406)
04-25-2011 1:46 AM
Reply to: Message 146 by Dr Adequate
04-24-2011 11:50 PM


Re: That boat won't float ... really ?
I did; I don't think it answers my question. What it shows, if I'm reading it rightly, is that they could build a framework out of wood so that no particular beam would immediately snap under the stresses imposed. But this doesn't address the question of the "working"* of the ship. If the waves keep on flexing it, the structure starts working loose; and this has often been the problem with large wooden ships --- it isn't that they immediately snapped, but that they worked themselves apart.
From which part did you get the idea that they were evaluating the stress on the individual beams ? I did not get that impression, and this passage:
quote:
An index for structural safety was obtained by assessing the required thickness of the midship for each hull form to endure the vertical bending moment imposed by waves.
certainly gives me the impression they are measuring stress on the total structure.
For the working, I would guess that nothing certainly absolutely stops it, and so every ship work themselves appart in the long run. The question then is how long would it take this one ? I couldn't answer that question, although I would think that the conclusion in the structural safety section implicitly addresses that issue:
quote:
The distribution of the equivalent stress obtained by the stress analysis is shown in Figure 3. Because the maximum stress was smaller than the allowable stress, the Ark could be said to have had safe structural performance.
Which means that it starts off in the position of a sailing ship that's been dismasted.
Well, no, because it wasn't meant to sail, so it isn't a sailing ship. They clearly mention this in the introduction:
quote:
... enable investigations of the practicality of the Ark as a drifting ship in high winds and waves.
So they evaluated that as a drifting ship, it could have navigated on waves as high as 30m. Note that this is using modern passenger ships criteria of what is 'navigable'.
Broaching to is when a ship turns side-on to the waves. In a storm, this was often fatal. That's why sails were required --- the ship had to be kept sailing in the direction of the wind, and if the sail or mast carried away, you were in trouble.
Ok. And so the danger is to overturn ? Isn't that covered in the 'overturning stability' section ?
If not, how do mastless ships (modern) deal with this ? Do they use their motors to align themselves continually, or can't you simply shape the boat so that it aligns itself naturally ?

This message is a reply to:
 Message 146 by Dr Adequate, posted 04-24-2011 11:50 PM Dr Adequate has replied

Replies to this message:
 Message 148 by Dr Adequate, posted 04-25-2011 3:26 AM slevesque has not replied
 Message 176 by ZenMonkey, posted 04-28-2011 7:53 PM slevesque has not replied

  
slevesque
Member (Idle past 4662 days)
Posts: 1456
Joined: 05-14-2009


Message 154 of 261 (613449)
04-25-2011 1:16 PM
Reply to: Message 151 by Theodoric
04-25-2011 9:41 AM


Re: That boat won't float ... really ?
Of course I did, because when it doesn't suit you, you run from it as fast as you can. The hypocrisy of the creo/ID side is astounding. You refuse to accept volumes of scientific data, that has been peer-reviewed and analyzed extensively and then get all huffy when you present something that is less than a paper and has nothing to attest for even it's authenticity and no one accepts it blindly.
And you got it backwards here: creationists refuse to accept volumes of published papers because they disagree with what is said in the paper (the interpretation of the data, etc.), not because it was peer-reviewed.
Conversely, they don't expect you to accept their analysis because it was peer-reviewed, but because you consider the analysis for what it is, and determine that it is correct.
You make a false claim of peer review, the whole thing stinks of fallacy of authority and a poor attempt at that. Lets look at this attempt. We have no idea who S.W. Hong, S. S. Na, B. S. Hyun, S. Y. Hong, D. S. Gong, K. J. Kang, S. H. Suh, K. H. Lee and Y. G. Je are. They could be janitors for all we know. They could not even exist. All we have is an assertion on the webpage you claim is authoritative. That claims.
First, the peer-review process for the TJ is the very same then for any other journal. Keep in mind that most creationist scientists have made careers in science and know the peer-review process very well, and so when they made that journal they just applied the very same peer-review process.
Now, you asked of me the reviews that particular paper obtained 17 years ago. It is without saying that such a task is practically impossible, since reviews are never published and made accessible only on demand (which would probably take at least 1 month to obtain from the TJ). The fact that you asked me something that is impossible in a short time, and that I was unable to do it in a short time, does not mean what I said was false (which implies I am a lier)
Now secondly, who cares if they are janitors ? It doesn't change the math and calculation. Once again, they should stand or fall on their merits, not on where it was published or who said it.
Bloody hell, they can't even get the name of the Institute correct. This is also the same website that has articles(yes, articles not papers) that states this.
You realize that was in '94 ? You realize the name could have changed since then, you know, like simply adding 'oceanic' before engineering ? Just saying ...
And you expect us to believe the crap they post without any analysis or backup? What the hell are you smoking?
No, I said you are free to accept their math or not. However, I maintain that it would be dishonest to claim from here on end that such a big seaworthy wooden boat is impossible to build, since if you cannot even analys the math when it is presented to you, then you shouldn't be talking out of your ass.
Expecting outside verification and validation is "second-rate"? I truly think your career in science is going to be very short lived.
That is not what I said, thanks for the misrepresentation though.
I said the argument ''such a big seaworthy wooden boat is impossible'' is second-rate.
Do you want to continue the personal attacks(childish)? Or do you want to provide something to back up your claims and the claims of the article?
My claim is: No one here can legimitaly say ''such a big seaworthy wooden boat is impossible''.
The support for my claim is the calculations shown in the paper that it is certainly possible. Either you understand the math, and in that case you would figure that the ark could have been seaworthy, or you don't understand the math, and in that case you jsut say so and accept that you shouldn't make grand claims about something you know nothing about.
AbE
Here is part of another paper published by three of the authors of the ark paper
http://www.isope.org/...01994/Abstract%20Pages/I94v4p603.pdf
So we at least know they are not janitors, and that they have done this kind of calculations before
Edited by slevesque, : No reason given.

This message is a reply to:
 Message 151 by Theodoric, posted 04-25-2011 9:41 AM Theodoric has replied

Replies to this message:
 Message 156 by ringo, posted 04-25-2011 1:40 PM slevesque has replied
 Message 160 by Theodoric, posted 04-25-2011 4:37 PM slevesque has replied

  
slevesque
Member (Idle past 4662 days)
Posts: 1456
Joined: 05-14-2009


Message 155 of 261 (613450)
04-25-2011 1:16 PM
Reply to: Message 153 by Tram law
04-25-2011 12:13 PM


tax cuts I think.

This message is a reply to:
 Message 153 by Tram law, posted 04-25-2011 12:13 PM Tram law has not replied

  
slevesque
Member (Idle past 4662 days)
Posts: 1456
Joined: 05-14-2009


Message 157 of 261 (613453)
04-25-2011 1:58 PM
Reply to: Message 156 by ringo
04-25-2011 1:40 PM


Since you don't pretend to understand the math, why do you get to make grand claims that it's correct?
I don't make grand claims either, I only quote the naval engineers who are making the claims. And I pretend to have no reason not to think they are right
But the point is actually quite simple: if no one here can understand the math when it is presented to them, then no one here can claim that the ark wouldn't float, it really is as simple as that.
You don't have to accept that it would, but you can't claim it wouldn't. that's all.

This message is a reply to:
 Message 156 by ringo, posted 04-25-2011 1:40 PM ringo has replied

Replies to this message:
 Message 158 by ringo, posted 04-25-2011 2:13 PM slevesque has not replied
 Message 164 by NoNukes, posted 04-26-2011 2:44 PM slevesque has not replied

  
slevesque
Member (Idle past 4662 days)
Posts: 1456
Joined: 05-14-2009


Message 161 of 261 (613486)
04-25-2011 4:41 PM
Reply to: Message 160 by Theodoric
04-25-2011 4:37 PM


Re: That boat won't float ... really ?
You mean the original is not available at all? Doesn't sound real sciency to me.
Reviews are available only through private communication, since they are never officially published.
I just emailed CMI to see if the article was in fact reviewed by anyone before or after publication. Gee that was easy.
So did I. But as I said, it would surprise me if we got a quick answer. They receive a boatload of emails each day. Answers usually take over a month

This message is a reply to:
 Message 160 by Theodoric, posted 04-25-2011 4:37 PM Theodoric has replied

Replies to this message:
 Message 162 by Theodoric, posted 04-25-2011 4:51 PM slevesque has not replied
 Message 163 by Theodoric, posted 04-26-2011 2:35 PM slevesque has not replied

  
Newer Topic | Older Topic
Jump to:


Copyright 2001-2023 by EvC Forum, All Rights Reserved

™ Version 4.2
Innovative software from Qwixotic © 2024