Re: [Goanet] Evolution (contd)

2005-03-03 Thread Gabriel de Figueiredo
 --- Santosh Helekar [EMAIL PROTECTED] wrote:

 
 What would you say is the scientific accuracy of
 anything in the Bible? I am asking you because you
 seem to question the accuracy of scientific methods
 like radiocarbon dating. Would 195,000 years be
 outside the margin of accuracy of Biblical dates?
 The
 Omo I modern human fossils are dated to be 195,000
 years old using potassium-argon and geological
 dating.
 

Bible history is full of metaphors, IMHO. Flaming
sword - was it describing something like a laser gun a
la Star Wars? Was the destruction of Sodom  Gomorrah
a nuclear destruction? Was the ascension of Elijah a
flight by a something similar to a helicopter (wheels
within wheels)? 

We have similar legends and stories in Greek
Mythology, Arabian Nights, and the Mahabharata. Two
heavenly arrows destroying one another in mid-air
(Mahabharata) seems uncannily like the Patriot
missiles destroying Saddam's missiles in Gulf War 1.
Flying carpets / horses - could they be a way of
describing planes in common everyday language when
planes no longer existed?  

In other words - has man reinvented himself after
some mighty catastrophe in the far past? As I
understand Einstein is said to have stated at one
time, I don't know what weapons will be used in
WWIII, but surely WWIV will be fought with stones.

My 2 cents' worth ...

Gabriel de Figueiredo
Melbourne - Australia.

Find local movie times and trailers on Yahoo! Movies.
http://au.movies.yahoo.com



Re: [Goanet] Evolution (contd)

2005-03-01 Thread Santosh Helekar
--- [EMAIL PROTECTED] wrote:
 
Hello,
Here are links to three articles discussing quite
convincingly a creationist view point.


Orlando,

There is a lot of self-published pseudoscientific
literature on creationism on the web and in print. It
appears convincing only to believers, lay people or
people who do not want to spend the time and effort to
critically examine what they are saying.

I give below links to scholarly articles that refute
the basic arguments presented in the following
articles that you provided.


 World Population Since Creation by Lambert Dolphin
  http://www.ldolphin.org/popul.html
 
 Population of the PreFlood World by Tom Pickett
  http://www.ldolphin.org/pickett.html
 

Both the above articles are based on Henry Morris's
flawed equations and assumptions. Here are the papers
that refute them.

1. Creationists, Population Growth, Bunnies, and the
Great Pyramid by David H. Milne

http://www.ncseweb.org/resources/articles/8828_issue_14_volume_4_number_4__6_23_2003.asp#Creationists,%20Population%20Growth,%20Bunnies,%20and%20the%20Great%20Pyramid


2. More on Population Growth and Creationism by James
S. Monroe

http://www.ncseweb.org/resources/articles/823_issue_18_volume_6_number_2__4_29_2003.asp#More%20on%20Population%20Growth%20and%20Creationism


Speed of Light Slowing Down? by Chuck Missler
http://www.ldolphin.org/speedo.html
The article on the speed of light as a constant (?)
is specially interesting. Good food for thaught in
the currentcontext.


The fallacies in the above proposal are discussed in
the following paper.

Does the Speed of Light Slow Down Over Time? by Ronald
Ebert
http://www.magicdave.com/ron/Does%20the%20Speed%20of%20Light%20Slow%20Down%20Over%20Time.html

Cheers,

Santosh


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Re: [Goanet] Evolution (contd)

2005-03-01 Thread angel
- Original Message -
From: Peter D'Souza [EMAIL PROTECTED]
To: goanet@goanet.org
Sent: 28 February, 2005 6:41 PM
Subject: [Goanet] Evolution (contd)

Elsewhere in this post I have
explained the seeming consistency in an evolutionist's belief that man
might
have existed for millions of years and yet might have been reduced to a
population of 2 (two) as of about 6,000-10,000 years ago. My point in
mentioning my friend and his luminary mentor shows that you can be a
committed

Hello,
Here are links to three articles discussing quite convincingly a creationist
view point.

World Population Since Creation by Lambert Dolphin
 http://www.ldolphin.org/popul.html

Population of the PreFlood World by Tom Pickett
 http://www.ldolphin.org/pickett.html

Speed of Light Slowing Down? by Chuck Missler
 http://www.ldolphin.org/speedo.html

The article on the speed of light as a constant (?) is specially
interesting. Good food for thaught in the current context.

Orlando





***
* G * O * A * N * E * T *** C * L * A * S * S * I * F * I * E * D * S *
***
Greet your loved ones in Goa with flowers!

http://www.goa-world.com/goa/expressions/
EXPRESSIONS - The Flower Shop. World famous all over Goa!
***


Re: [Goanet] Evolution (contd)

2005-03-01 Thread Santosh Helekar
Hi Peter,

Your latest post under the above thread did appear on
Goanet (Please see the archives). Therefore, I am
posting this reply. Here are my responses to your
points. 

Peter D'Souza wrote:

You are incorrect in stating that he assumed a
constant_ growth rate. In fact, this is what he did
say: although it is obvious that the present rate of
growth (2%) could not have prevailed for very long in
the past, it does seem unlikely that the long-time
growth rate could have averaged significantly less
 than (1/2)%.


I don't know whether you have a mathematics background
or not. But if you tried to understand the math behind
how you calculate a population change based on a
variable growth rate (i. e. positive growth as well as
negative growth or decline) then you would realize
that the formula used by Morris assumes only a
constant positive growth rate. He also assumes a
constant average growth rate from 1800 to all the way
back to the origin of man. You cannot simply average
positive and negative growth rates, and use the
average in the formula. There are good estimates that
in the last 2000 years there were at least two periods
when there was a negative growth rate (decline).
Nobody has the slightest idea of the directions of
population changes during the 4000 years prior to
that. It is very likely that because of high infant
mortality rates there was 0% growth or negative growth
during some phases of this era.

A real scientist with knowledge about the math
involved would never have attempted to do the type of
calculation that Morris attempted. One cannot derive a
formula for this because one has absolutely no
knowledge of when the population increased and when it
decreased, and by how much, before 200 B.C. It is next
to impossible to derive a realistic combination
formula for variable increases during some variable
periods and variable decreases at other variable
periods. People have written hundreds of papers using
all kinds of mathematical models on this subject. 


He seems to believe that one man or couple might have
been in existence 8,000/10,000/6,300 years ago and
that such a man's contemporaries were destroyed. This
seems rational, given his mindset. I'm surprised that
you wouldn't agree but choose to dispute population
growth rate instead.


Please read your first Goanet post on your friend's
argument. What you stated in that post emphasizes the
2% population growth, and mentions that your friend's
estimate is an extrapolation based on that growth
rate, allowing for some natural disasters. This
original argument is similar to that of Morris, and is
mathematically flawed, as shown above. It does not
appear to me to be a genuine scientific argument at
all. Perhaps, you misunderstood what your friend was
saying. If you tell me his name, I could check if he
has published his calculation in any scientific
journal. If he has not published it, it is unlikely to
be a serious, well-researched argument.

 
I would not use the words real and estimates in
the same sentence.
 

I mean real scientific estimates as opposed to the
pseudoscientific estimate of Morris.


The same table says that the world population grew at
0% (zero percent) and stayed at exactly 5 million for
a period of 3,000 (three whopping thousand)years. Are
these guys serious? This was before the condom was
invented.


There is nothing unusual about 0% growth rate. I am
sure you know that growth rate is birth rate minus
death rate. If these two rates are equal then you have
zero growth. If the death rate is more than birth rate
then you have a decline or negative growth. In the old
days the death rate was very high, especially the
infant mortality rate. The latter rate was in some
cases higher than 500 per 1000 live births. At this
rate one needed a very high birth rate (more than 8%)
in order to prevent extinction of mankind. This was
very hard to do before large residential communities
were established. People's life expectancy was also
very low – perhaps, in the twenties. So the
reproductive life span was also very short.

The people who contributed the data in the table
provided by the U.S. Census Bureau are the world’s
experts on population theory, history and statistics.
They are certainly more knowledgeable and qualified
than Morris. Please do not prejudge them without
reading and understanding their research papers cited
at the bottom of that table. If your friend has
published a paper like that, please let me know. I can
read his and their papers, try to understand and
compare them, and see whose estimates make more sense.

 
Radiocarbon dating, which depends on the steady
decay of carbon-14, becomes less and less reliable
once the artefact under study gets older than about
16,000 years. is what Dr. Chris Stringer, Natural
History Museum, London,
 

Radiocarbon dating is only one of many methods used
for dating fossils and artifacts today. There are a
whole bunch of other methods such as potassium-argon
dating, geological dating, 

[Goanet] Evolution (contd)

2005-02-28 Thread Peter D'Souza
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
Santosh Helekar said:
SH I have to say that your understanding of the article
SH is completely off. What you state above refers only to
SH the first couple of paragraphs of that article with
SH quite revealing title of Evolution and the Population
SH Problem.  If you read the entire article, you will
SH find that Morris makes an argument for a Biblically
SH mandated recent origin of man based on a constant
SH population growth rate.
When I said: I don't think Mr. Morris was making a case for a 2%
population
growth rate I meant that his thesis was not to push a 2% growth theory,
i.e. he wasn't making that his primary case, rather (you're right in
this) his
argument is for a biblical creation time line based on population
growth rate. You
are incorrect in stating that he assumed a _constant_ growth rate. In
fact,
this is what he did say: although it is obvious that the present rate of
growth (2%) could not have prevailed for very long in the past, it
does seem
unlikely that the long-time growth rate could have averaged
significantly less
than (1/2)%.
SH   He gives a formula to
SH calculate the number of years that have elapsed since
SH the origin of man assuming that the entire human
SH population emerged from one human couple created by
SH God given whatever the actual value of the population
SH of the world was around 1800 A.D. When he plugs in a
SH population growth rate of 1/3%  (not 2%) in the
SH formula he gets a value of 6300 years for the origin
SH of man. He says that this is consistent with what is
SH inferred from the Biblical account.
Correct. He is quite consistent in assuming the population growth rate
to have
been between 1/2% (an assumed low) and 2% (current).
SH Here are some of
SH the relevant quotes from his article that you seem to
SH have missed somehow:
Morris In that case, the length of time required for the
Morris population to grow from 2 people to one billion
[...]
Morris Thus, the most probable date of human origin, based on
Morris the known data from population statistics, is about
Morris 6,300 years ago.
The in that case was referring to the estimated population growth
rate--based
on the actual populations--between 1650 and 1800, which he uses to
bolster his
case. No, I didn't miss this. Again, he is not making up the 2% figure
and also
accommodates a growth rate as low as 1/3%.
SH Please ask your friend where he got his fallacious
SH argument for linking the population growth rate with
SH the origin of man. I am willing to bet that it is from
SH Henry Morris?s writings or their derivations.
My friend would be very reluctant to say that man actually originated
6,300
years ago. He probably has a good explanation...perhaps there was a
cataclysmic
event which left just two people on the planet 6,300 or 10,000 years
ago is
what he is likely to say. (I don't really discuss this issue very much
with
him, we're both committed to our separate beliefs.) Like you, he
believes the
x million-year theories that have been floating around for the last
century. He
seems to believe that one man or couple might have been in existence
8,000/10,000/6,300 years ago and that such a man's contemporaries were
destroyed. This seems rational, given his mindset. I'm surprised that you
wouldn't agree but choose to dispute population growth rate instead.
| Ergo, the extrapolation is based purely on
| demographic trends and recorded natural events which
| might have skewed the patterns of population growth.
SH Henry Morris?s (and your friend?s) argument is
SH completely wrong for the following reasons:
SH 1. It is well known that the rate and direction of
SH population change has not remained constant throughout
SH [...]
SH increased growth rate of up to 2% occurred only in the
SH last century.
No one has disputed that. See my statement that you'd quoted above.
Also see
Henry Morris' paper.
SH last century. One does not have to be Harvard educated
SH or a friend of Stephen Jay Gould to realize any of
SH this.
Correct. I don't see where we disagree on this point.
SH this. Here are the real scientific estimates of world
I would not use the words real and estimates in the same sentence.
SH http://www.census.gov/ipc/www/worldhis.html
SH Please note that the table showing these estimates
SH says that there were anywhere from 1 ? 10 million
SH people in the world in 10,000 B.C. The original
The same table says that the world population grew at 0% (zero percent)
and stayed at exactly 5 million for a period of 3,000 (three whopping
thousand)
years. Are these guys serious? This was before the condom was invented.
SH 2. It should be obvious to most people today that
SH there is an overwhelming amount of physical evidence
SH such as fossilized human skeletal parts, which has
SH been dated with high accuracy to being at least 80,000
SH years old.
Radiocarbon dating, which depends on the steady decay of carbon-14,