Tag Archives: Biology

Does the progress of science lead to theism or atheism?

Dr. Walter L. Bradley
Dr. Walter L. Bradley

Dr. Walter L. Bradley (C.V. here) is the Distinguished Professor of Engineering at Baylor.

Here’s a bio from his faculty page at Baylor University:

Walter Bradley (B.S., Ph.D. University of Texas at Austin) is Distinguished Professor of Engineering at Baylor. He comes to Baylor from Texas A&M University where he helped develop a nationally recognized program in polymeric composite materials. At Texas A&M, he served as director of the Polymer Technology Center for 10 years and as Department Head of Mechanical Engineering, a department of 67 professors that was ranked as high as 12th nationally during his tenure. Bradley has authored over 150 refereed research publications including book chapters, articles in archival journals such as the Journal of Material Science, Journal of Reinforced Plastics and Composites, Mechanics of Time-Dependent Materials, Journal of Composites Technology and Research, Composite Science and Technology, Journal of Metals, Polymer Engineering and Science, and Journal of Materials Science, and refereed conference proceedings.

Dr. Bradley has secured over $5.0 million in research funding from NSF grants (15 yrs.), AFOSR (10 years), NASA grants (10 years), and DOE (3 years). He has also received research grants or contracts from many Fortune 500 companies, including Alcoa, Dow Chemical, DuPont, 3M, Shell, Exxon, Boeing, and Phillips.

He co-authored The Mystery of Life Origin: Reassessing Current Theories and has written 10 book chapters dealing with various faith science issues, a topic on which he speaks widely.

He has received 5 research awards at Texas A&M University and 1 national research award. He has also received two teaching awards. He is an Elected Fellow of the American Society for Materials and the American Scientific Affiliation (ASA), the largest organization of Christians in Science and Technology in the world. He is President elect of the ASA and will serve his term in 2008.

You can read more about his recent research on how to use coconuts to make car parts in this article from Science Daily.

Below, I analyze a lecture I chose from the hundreds of public lectures he has given all over the world on the integration of Christian faith with other public, testable areas of knowledge. In this lecture, entitled “Is There Scientific Evidence for an Intelligent Designer?”, Dr. Bradley explains how the progress of science has made the idea of a Creator and Designer of the universe more acceptable than ever before.

The MP3 file is here.

Evidence #1: The design of the universe

1. The correspondence of natural phenomena to mathematical law

  • All observations of physical phenomena in the universe, such as throwing a ball up in the air, are described by a few simple, elegant mathematical equations.

2. The fine-tuning of physical constants and rations between constants in order to provide a life-permitting universe

  • Life has certain minimal requirements; long-term stable source of energy, a large number of different chemical elements, an element that can serve as a hub for joining together other elements into compounds, etc.
  • In order to meet these minimal requirements, the physical constants, (such as the gravitational constant), and the ratios between physical constants, need to be withing a narrow range of values in order to support the minimal requirements for life of any kind.
  • Slight changes to any of the physical constants, or to the rations between the constants, will result in a universe inhospitable to life.
  • The range of possible ranges over 70 orders of magnitude.
  • Although each individual selection of constants and ratios is as unlikely as any other selection, the vast majority of these possibilities do not support the minimal requirements of life of any kind. (In the same way as any hand of 5 cards that is dealt is as likely as any other, but you are overwhelmingly likely NOT to get a royal flush. In our case, a royal flush is a life-permitting universe).

Examples of finely-tuned constants and ratios: (there are more examples in the lecture)

a) The strong force: (the force that binds nucleons (= protons and neutrons) together in nucleus, by means of meson exchange)

  • if the strong force constant were 2% stronger, there would be no stable hydrogen, no long-lived stars, no hydrogen containing compounds. This is because the single proton in hydrogen would want to stick to something else so badly that there would be no hydrogen left!
  • if the strong force constant were 5% weaker, there would be no stable stars, few (if any) elements besides hydrogen. This is because you would be able to build up the nuclei of the heavier elements, which contain more than 1 proton.
  • So, whether you adjust the strong force up or down, you lose stars than can serve as long-term sources of stable energy, or you lose chemical diversity, which is necessary to make beings that can perform the minimal requirements of living beings. (see below)

b) The conversion of beryllium to carbon, and carbon to oxygen

  • Life requires carbon in order to serve as the hub for complex molecules, but it also requires oxygen in order to create water.
  • Carbon is like the hub wheel in a tinker toy set: you can bind other elements together to more complicated molecules (e.g. – “carbon-based life), but the bonds are not so tight that they can’t be broken down again later to make something else.
  • The carbon resonance level is determined by two constants: the strong force and electromagnetic force.
  • If you mess with these forces even slightly, you either lose the carbon or the oxygen.

3. Fine-tuning to allow a habitable planet

  • A number of factors must be fine-tuned in order to have a planet that supports life
  • Initial estimates predicted abundant life in the universe, but revised estimates now predict that life is almost certainly unique in the galaxy, and probably unique in the universe.
  • Even though there are lots of stars in the universe, the odds are against any of them supporting complex life.
  • Here are just a few of the minimal requirements for habitability: must be a single star solar system, in order to support stable planetary orbits, the planet must be the right distance from the sun in order to have liquid water at the surface, the planet must sufficient mass in order to retain an atmosphere, etc.

The best current atheist response to this is to speculate that there may be an infinite number of unobservable and untestable universes.

Evidence #2: The origin of the universe

1. The progress of science has shown that the entire physical universe came into being out of nothing (= “the big bang”). It also shows that the cause of this creation event is non-physical and non-temporal. The cause is supernatural.

  • Atheism prefers an eternal universe, to get around the problem of a Creator having to create the universe.
  • Discovery #1: Observations of galaxies moving away from one another confirms that the universe expanded from a single point.
  • Discovery #2: Measurements of the cosmic background radiation confirms that the universe exploding into being.
  • Discovery #3: Predictions of elemental abundances prove that the universe is not eternal.
  • Discovery #4:The atheism-friendly steady-state model and oscillating model were both falsified by the evidence.
  • And there were other discoveries as well, mentioned in the lecture.

The best atheistic response to this is to speculate that there is an unobservable and untestable hyper-universe outside our own.

Evidence #3: The origin of life

1. The progress of science has shown that the simplest living organism contains huge amounts of biological information, similar to the Java code I write all day at work. This is a problem for atheists, because the sequence of instructions in a living system has to come together all at once, it cannot have evolved by mutation and selection – because there was no replication in place prior to the formation of that first living system!

  • Living systems must support certain minimum life functions: processing energy, storing information, and replicating.
  • There needs to be a certain amount of complexity in the living system that can perform these minimum functions.
  • But on atheism, the living system needs to be simple enough to form by accident in a pre-biotic soup, and in a reasonable amount of time.
  • The minimal functionality in a living system is a achieved by DNA, RNA and enzymes. DNA and RNA are composed of sequences of proteins, which are in turn composed of sequences of amino acids.

Consider the problems of building a chain of 100 amino acids

  • The amino acids must be left-handed only, but left and right kinds are equally abundant in nature. How do you sort out the right-handed ones?
  • The amino acids must be bound together using peptide bonds. How do you prevent other types of bonds?
  • Each link of the amino acid chain needs to be carefully chosen such that the completed chain with fold up into a protein. How do you choose the correct amino acid for each link from the pool of 20 different kinds found in living systems?
  • In every case, a human or other intelligence could solve these problems by doing what intelligent agents do best: making choices.
  • But who is there to make the choices on atheism?

The best current atheistic response to this is to speculate that unobservable and untestable aliens seeded the earth with life.

The problem of the origin of life is not a problem of chemistry, it is a problem of engineering. Every part of car functionality can be understood and described using the laws of physics and chemistry. But an intelligence is still needed in order to assemble the components into a system that has the minimal requirements for a functioning vehicle.

Conclusion

In all three areas, scientists expected that the data would be consistent with atheism. First, scientists expected that life could exist even if the physical constants and ratios were altered. The progress of science said NO. Second, scientists expected that the universe would be eternal. The progress of science said NO. Third, scientists expected that the origin of life would be simple. The progress of science said NO. I think we all need to try to align our beliefs with the progress of science.

Paul Nelson and Jonathan Wells present their research at a biology conference

From Evolution News. (Written by Paul Nelson)

Excerpt:

Jonathan Wells and I presented our posters at the 2011 annual meeting of the Society for Developmental Biology this past weekend, and had a great time. For those who don’t know what a poster session is, the idea is simple: you summarize your data, experiment, hypothesis, whatever, in the space of a 6′ x 4′ panel, and then at a scheduled time (“poster session”), stand by your board and field questions from whoever stops by to talk. Jonathan presented his material on Saturday afternoon; you can download an abbreviated version of his poster as a pdf here. (The pdf is shorter than the poster itself because Jonathan omitted any copyrighted visuals.) I presented yesterday afternoon, and my full poster can be downloaded as a pdf here.

Neither of us faced any hostility, which (for Jonathan) was a refreshing change of atmosphere from the angry reception he received during his poster presentation at the 2005 annual meeting of the American Society for Cell Biology. In fact, we met with friendly, open-ended questions, curiosity, and meaningful exchanges. One biologist at Jonathan’s session carefully read the main panels, then said to Jonathan, “Are you serious?” He and Jonathan then spent a long time going over the arguments and data in the poster — the opening question was an invitation for a detailed explanation.

This is good news. Maybe there is a gap between the Darwinian activists and the regular rank-and-file biologists, who are just interested in what’s true. It helps that Wells and Nelson are experts in this area of biology, so they can defend their views with authority.

Paul Chien interviewed on the Cambrian era fossils

Cambrian Explosion
Cambrian era fossils: Theory versus Data

From Leadership University. (H/T The Poached Egg)

Excerpt:

Dr. Paul Chien, chairman of the biology department at the University of San Francisco, recently accepted a unique invitation to travel to China to study fossils of the Cambrian era. What Chien found at the Chengjiang site, and what he has since learned about the Cambrian fauna, has changed the focus of his career. Today, Chien concentrates on further exploring and promoting the mysteries of the Cambrian explosion of life. Subsequently, Chien possesses the largest collection of Chinese Cambrian fossils in North America.

Chien attended Mere Creation, a conference last November sponsored by Christian Leadership, which was featured in the previous Real Issue. The following is an interview with Paul Chien.

RI: Dr. Chien, what is your interest in the evolution/creation debate?

Chien: Even before I became a Christian, I had doubts about evolution. During my college years I was really interested in finding answers, but I got very little help. For a while I lost interest because I thought, one way or the other, it wasn’t very important. But since I started teaching, many people ask me about that. In fact, I often speak at churches and youth groups and conferences, and I have been forced back to that question; it’s pretty much my hobby now.

RI: Until recently, you have focused on the effects of pollution on marine organisms. How then did you come to study the Cambrian “explosion of Life”?

Chien: In studying marine organisms, and mainly the invertebrate groups, I have a clear vision of the distinct characteristics of each phyla. The theory of evolution never [seemed to] apply well in my field of marine invertebrates. When the news broke concerning [the discovery of] an explosion of animal life, it really excited me because that [had been] my position for many years. Also, Phil Johnson’s chapter on fossils [Darwin on Trial, Intervarsity Press, 1991] really ignited my interest in that area.

When an opportunity came up to talk with Chinese paleontologists and to visit them and the original site of fossil discovery, it became something I had to do. So last March I organized an international group to make a visit there.

RI: So is the Chengjiang site a primary site for the Cambrian explosion?

Chien: Yes, it’s the site of the first marine animal found in the early Cambrian times we don’t count micro-organisms as animals.

RI: Are there other places in the world where you find the same organisms?

Chien: In some ways there are similarities between the China site and the other famous site, the Burgess Shale fauna in Canada. But it turns out that the China site is much older, and the preservation of the specimens is much, much finer. Even nerves, internal organs and other details can be seen that are not present in fossils in any other place.

RI: And I suppose many of these are probably soft-tissue marine-type animals?

Chien: Yes, including jellyfish-like organisms. They can even see water ducts in the jellyfish. They are all marine. That part of western China was under a shallow sea at the time.

RI: As you became more interested in this and discovered more about it, did you find it really was an “explosion of life”?

Chien: Yes. A simple way of putting it is that currently we have about 38 phyla of different groups of animals, but the total number of phyla discovered during that period of time (including those in China, Canada, and elsewhere) adds up to over 50 phyla. That means [there are] more phyla in the very, very beginning, where we found the first fossils [of animal life], than exist now.

Stephen J. Gould, [a Harvard University evolutionary biologist], has referred to this as the reverse cone of diversity. The theory of evolution implies that things get more and more complex and get more and more diverse from one single origin. But the whole thing turns out to be reversed we have more diverse groups in the very beginning, and in fact more and more of them die off over time, and we have less and less now.

RI: What information is the public hearing or not hearing about the Cambrian explosion?

Chien: The general impression people get is that we began with micro-organisms, then came lowly animals that don’t amount to much, and then came the birds, mammals and man. Scientists were looking at a very small branch of the whole animal kingdom, and they saw more complexity and advanced features in that group. But it turns out that this concept does not apply to the entire spectrum of animals or to the appearance or creation of different groups. Take all the different body plans of roundworms, flatworms, coral, jellyfish and whatever all those appeared at the very first instant.

Most textbooks will show a live tree of evolution with the groups evolving through a long period of time. If you take that tree and chop off 99 percent of it, [what is left] is closer to reality; it’s the true beginning of every group of animals, all represented at the very beginning.

Since the Cambrian period, we have only die-off and no new groups coming about, ever. There’s only one little exception cited the group known as bryozoans, which are found in the fossil record a little later. However, most people think we just haven’t found it yet; that group was probably also present in the Cambrian explosion.

Also, the animal explosion caught people’s attention when the Chinese confirmed they found a genus now called Yunnanzoon that was present in the very beginning. This genus is considered a chordate, and the phylum Chordata includes fish, mammals and man. An evolutionist would say the ancestor of humans was present then. Looked at more objectively, you could say the most complex animal group, the chordates, were represented at the beginning, and they did not go through a slow gradual evolution to become a chordate.

Someone posted an interesting documentary on Youtube about the Cambrian explosion.

Leadership University  is run by CLM, and features solid scholarship on a wide range of issues, including science.