Bending Moment Diagram Formula - Reinforced Concrete Columns. A column is a very important component in a structure. It is like the legs on which a structure stands. It is designed to resist axial and lateral forces and transfer them safely to the footings in the ground.. Given the same amount of absorbed solar energy coming in, the amount of IR escaping to space at the top of the atmosphere will indeed be the same no matter how many greenhouse gases there are (assuming the system is in equilibrium).. modern color theory (concepts) This page introduces the conceptual basis of artists' "color theory" — the traditional body of lore applied by painters and photographers to the design and creation of images..