the parthenon uses this type of column in its design
Parthenon The Parthenon is a peripteral octastyle Doric temple with Ionic architectural features. It stands on a platform or stylobate of three steps. In common with other Greek temples, it is of post and lintel construction and is surrounded by columns ("peripteral") carrying an entablature. There are eight columns at either end ("octastyle") and seventeen on the sides. There is a double row of columns at either end. The colonnade surrounds an inner masonry structure, the cella, which is divided into two compartments. At either end of the building the gable is finished with a triangular pediment originally occupied by sculpted figures. The columns are of the Doric order, with simple capitals, fluted shafts and no bases. Above the architrave of the entablature is a frieze of carved pictorial panels (metopes), separated by formal architectural triglyphs, typical of the Doric order. Around the cella and across the lintels of the inner columns runs a continuous sculptured frieze in low relief. This element of the architecture is Ionic in style rather than Doric.[53]
Periodic table The periodic table is a tabular arrangement of the chemical elements, ordered by their atomic number, electron configuration, and recurring chemical properties. This adopted ordering shows periodic trends, such as elements with similar behaviour in the same column. It also shows four rectangular blocks with some approximately similar chemical properties. Generally, within one row (period) the elements are metals on the left, and non-metals on the right. Table rows are called periods and columns are called groups. Six groups have accepted names as well as assigned numbers: for example, group 17 elements are halogens; and group 18 are noble gases.