Changes

'''Operation science''' examines how things that can happen over and over in a regular and repetitive way normally operate in the present. It seeks answers that are testable by repeating the experiment, and falsifiable if the cause does not always yield the same effect. Its conclusions should allow one to make predictions about future experiments and observations. Because things under examinations are expected to be very regular and predictable, operation science usually seeks out natural (secondary) causes of the observable events.<ref>{{Cite book

'''Operation science''' or '''Operational science''' examines how things that can happen over and over in a regular and repetitive way normally operate in the present. It seeks answers that are testable by repeating the experiment, and falsifiable if the cause does not always yield the same effect. Its conclusions should allow one to make predictions about future experiments and observations. Because things under examinations are expected to be very regular and predictable, operation science usually seeks out natural (secondary) causes of the observable events.<ref>{{Cite book

   | author = Norman L. Geisler and Ronald M. Brooks

   | author = Norman L. Geisler and Ronald M. Brooks

   | year=1990

   | year=1990