1. Form
1.1. The Way The Structure Is Built
1.1.1. Combination
1.1.1.1. Shell
1.1.1.1.1. Because on the inside of the building, its hollow.
1.1.1.2. Solid
1.1.1.2.1. Because some parts of the building isn't hollow.
2. Purpose
2.1. Creating structure that clear defines function
2.1.1. For Work
2.1.1.1. Examples
2.1.1.1.1. Offices
2.1.1.1.2. Companies
2.1.1.1.3. Radio Stations
2.1.2. Important as an monument in New York
2.1.3. Make money for developers
3. Function
3.1. How is it useful
3.1.1. To do work
3.1.1.1. Examples
3.1.1.1.1. Companies use offices
3.1.1.1.2. Radio Station service
3.1.1.1.3. To work in offices
3.1.2. Tourist Sightseeing
4. External Forces That Effect
4.1. Live Load
4.1.1. Can move on a structure
4.1.1.1. People inside the building
4.2. Dead Load
4.2.1. The structure itself
4.2.1.1. The empire state building itself
4.3. Dynamic Load
4.3.1. The thing that changes the structure
4.3.1.1. Wind
4.3.1.2. Rain
4.3.1.3. Snow
4.3.1.4. Tornado
4.3.1.5. Earthquake
5. Internal Forces That Effect
5.1. Tension
5.1.1. From the double doors the you push outwards to open.
5.2. Torsion
5.2.1. The twist in the key when you lock/open the door