Model

From Conservapedia

Jump to: navigation, search

In science, a model is an aid to understanding that represents an unseen or complex phenomenon.[1]

Models can be empirically found, or derived from fundamental laws. A good model has a well-defined domain of validity, in which it leads to unambiguous, self consistent results. Ideally it is easy to evaluate. To adaption of a model to a specific problem instance is done by model parameters, which can be defined/measured independently or left as free parameters to fit the model to a realistic situation. A large number of free parameters makes it difficult to assess the validity of the model without independent knowledge.

You can also make a model simply by fiddling around with the data, as NASA did when studying the erosion of O-rings used in the space shuttle:

A mathematical model was made to calculate erosion. This was a model based not on physical understanding but on empirical curve fitting.[2]

References

  1. Wile, Dr. Jay L. Exploring Creation With Biology. Apologia Educational Ministries, Inc. 1998
  2. Feynman's Appendix to the Rogers Commission Report on the Space Shuttle Challenger Accident
Personal tools