As an example of a construction fundamental is the use of a thermal center for accurate positioning. This construction fundamental is a comparison for a simple load case that describes the principle of the principle in this case. Because of the simplicity, these fundamentals are relatively easy to memorize, from where the name “forget-me-not”. The forget-me-nots are widely used in the engineering sciences, such as mechanical engineering and civil engineering.
For the overview of the fundamentals see KSC