by Paul Braterman
Below, R: How not to; "The Scientific Method", as inflicted on Science Fair participants. Click to enlarge
Consider this, from a justly esteemed chemistry text: 
Scientists are always on the lookout for patterns.… Once they have detected patterns, scientists develop hypotheses… After formulating a hypotheses, scientists design further experiments [emphasis in original]
Or this, from a very recent post to a popular website:
The scientific method in a nutshell:
1. Ask a question
2. Do background research
3. Construct a hypothesis
4. Test your hypothesis by doing experiments
5. Analyze your data and draw conclusions
6. Communicate your results [emphasis in original]
Then, if you find yourself nodding in agreement, consider this:
Since a scientific theory, by definition, must be testable by repeatable observations and must be capable of being falsified if indeed it were false, a scientific theory can only attempt to explain processes and events that are presently occurring repeatedly within our observations. Theories about history, although interesting and often fruitful, are not scientific theories, even though they may be related to other theories which do fulfill the criteria of a scientific theory.
If you are familiar with the creation-evolution "controversy", you may well suspect that last example of being so much creationist waffle, intended to discredit the whole of present-day geology and evolutionary biology. And you would be right. This quotation is from Duane Gish, a major figure in the twentieth century revival of biblical literalist creationism, writing for the Institute of Creation Research.1
L: Mike Pence, " [N]ow that we have recognised evolution as a theory… can we also consider teaching other theories of the origin of species?"
Such nonsense isn't funny any more, if it ever was. The man who may very soon find himself President of the United States is an eloquent spokesman for creationism.
And yet Gish's remarks seem to follow from the view of science put forward in the first two excerpts. What has gone wrong here? Practically everything.
R: Kepler's first two laws: elliptical orbit; equal areas in equal times
Consider the first great accomplishment of modern science; working out the laws2 of planetary motion, and Newton's explanation of those laws in terms of his theory2 of gravity. Copernicus, picking up on an idea that dates back to the ancient Greeks and was also well-known to the astronomers of Islam's Golden Age, treated the Earth as a planet like any other, and had the planets circling the Sun. Kepler showed that the orbits were in fact, to a very good approximation, ellipses, and found out how a planet's speed varied during each rotation, and how the length of a planet's "year" depending on its distance from the Sun. Finally, Newton showed that Kepler's Laws could be explained using his theory of gravity and his laws of motion, and that the same set of laws explained the motion of the Moon, and the downward acceleration of falling bodies on the Earth.
So where are the experiments, said in the first two extracts to play an essential role in testing a hypothesis?
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