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Confront reality
- Oct 25, 2016
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Science is the study of the handiwork of God.The Laws of Physics are descriptive, not prescriptive.
As chemists began to discover elements in the late eighteenth century, they tried to organize them into tables. Dmitri Mendeleev, a Russian chemist and teacher, published his periodic table in 1869. He was working on a textbook for his students and trying to organize the 60 elements that were known. So he wrote the properties of the elements on cards and moved the cards around until he saw a pattern in the properties. It turns out that the properties were repeating if he arranged the elements in order of increasing atomic mass.
Mendeleev left spaces in his table, however. He knew that some elements belonged in certain groups based on properties. He predicted that elements would be discovered to fill the spaces. For example, he left spaces between zinc and arsenic, and indeed gallium and germanium were discovered in 1875 and 1886 with the properties he predicted.
In this example, prescriptive laws were discovered incompletely. Descriptive models helped to guide further discovery. Science is based on faith in an ordered physical realm.
Prescriptive and Descriptive Laws of Physics