[This is a very short excerpt taken from Gordon H. Clark’s essay Science and Truth, which you can read in its entirety, here.]
How to Illustrate the Utility of False Scientific Theories
On this matter, Dr. Clark writes:
How science can be useful though false is illustrated in a delightful textbook on inductive logic. Milk fever, the illustration goes, until late in the nineteenth century, was a disease frequently fatal to cows. A veterinarian proposed the theory that it was caused by bacteria in the cows’ udders. The cure therefore was to disinfect the cow, which the veterinarian proceeded to do by injecting Lugol solution into each teat. The mortality under this treatment fell from a previous ninety percent to thirty. Does not this success full treatment prove that the bacteria were killed and that Lugol cured the disease? Unfortunately another veterinarian was caught without the Lugol solution one day, and he injected plain boiled water. The cow recovered. Had water killed the bacteria? What is worse, it was found later that air could be pumped into the cows’ udders with equally beneficial results. The original science was wrong, but it cured the cows nonetheless.
Just another reason why Christians should take the time and effort to read through Dr. Clark’s writings.