**Degree of indeterminacy (DOI)**

For simply-supported trusses, DOI can be determined by subtracting the number of unknowns with the number of equations.

- Unknowns consist of member and reaction unknowns. 213 more words

**Degree of indeterminacy (DOI)**

For simply-supported trusses, DOI can be determined by subtracting the number of unknowns with the number of equations.

- Unknowns consist of member and reaction unknowns. 213 more words

Once a year, engineers can put shell theory into practice in a less conventional way: by winning their family’s egg cracking competition (also known as egg knocking or egg tapping). 864 more words