There has recently been a flurry of letters to editor in the Marietta Daily Journal (Georgia) that were promted by a editorial two weeks ago by a Rev. Price concerning intelligent design. There has also been another subset of letters prompted by a Jeffrey Selman who has for years challenged Cobb County officials (schools and government) on First Amendment issues. For instance, he organized a legal fight against the school district which had authorized placing “evolution is only a theory” stickers on all middle and high school life science and biology texts. The district was ordered by a Federal Judge to remove the stickers, which they did. Writers to the paper have made their arguments using personal reasons, as well as making claims about various concepts in science, and other topics.
For example, a writer today, who claimed that “Selman is not as tolerant as he thinks he is,” expressed his anger about Selman’s views on several topics. In fact the writer stated: “…And then Mr. Selman’s friend, Dr. Benjamin Freeed, has the nerve to insinuate that parents who don’t agree with him and Mr. Selman are not good parents, his belief being that they are ignorant.”
In the same writer’s letter, I also found a couple of interesting references to science. I am not trying to claim that this writer is ignorant, but his statements shed some light on level of science literacy that exists in our culture. Here are the two points he made that I think are revealing:
1. “Of course, there are many scientists who believe that evolution is a fact, even though no one was there at the time to verify, it cannot be duplicated scientifically and no one has ever seen one kind of animal evolve into another kind. There are also many scientists who believe otherwise.”
2. “If he (Selman) will check carefully, the sticker that he was successful in getting yanked out of the textbooks only stated the truth: Evolution is a theory that cannot now, nor can it ever, be tested scientifically, just a no other theory of the beginnings of the world can be tested scientifically.”
I think the writer has hit the nail on the head about what and how we can know in science. Kenneth Miller, a biologist at Brown University says this about this issue:
“Science, the argument goes, is based on experiment and direct, testable observation. Therefore, science can address only phenomena that are brought into the laboratory and examined under controlled condtions…but this argument would deny scientific inquiry to any situation that does not lend itself to laboratory science. The natural history of the earth is just a situation. Since there were no human witnesses to the earth’s past, the argument goes, all statements about the past, including evolution, are pure speculation.”
Then he raises the question, “Is scientific inquiry restricted to what we can actually bring into the laboratory and see happening right in front of us? Is there really any scientific way that we can know anything about the past at all?”
And of course, as he shows in his book, the answer is yes. Let me explore a few examples.
1. Here is one example from the news of a week ago.A few days ago, NASA scientists announced new results from the WMAP Mission (Wilkinson Microwave Anisotropy Probe). WMAP has produced a new, more detailed picture of the infant universe (shown below).
This new information helps to pinpoint when the first stars formed and provides new clues about events that transpired in the first trillionth of a second of the universe. Here is a beautiful example of using scientific methodology to probe into the past, and answer questions about about what was the universe like at the moment after the Big Bang.
2. Another example the geological time scale, which has over time gone through many revisions, and improvements detailing events (geological and biological) in the earth’s history. You can view some graphical geological timelines to get an idea of how geologists have divided geological time into EONs, ERAs and PERIODs.
3. A third example, closely related to the geological time scale, is the fossil record (paleontology), which is a record of the histoy of life on the earth.
All three of these examples are part of K-12 science curriculum. Students in an earth science class or a physics course would find out about the Big Bang Theory, Students in earth science (elementary and middle school) would create geological time scales in their course, and geology, earth science and biology classes would help students learn about the fossil record. In all of these cases, students would learn something about the nature of science, and how we can know about what the universe was like in the past, and the history of the earth. Apparently, these lessons were lost on the writer to the Marietta Daily Journal.