Cross section (geometry) of Earth at right. Cross-sections are often used in anatomy to illustrate the inner structure of an organ, as shown at left. A cross-section of a tree trunk, as shown at left, reveals growth rings that can be used to find the age of the tree and the temporal properties of its environment. Cross section (geometry) In geometry and science, a cross section is the non-empty intersection of a solid body in three-dimensional space with a plane, or the analog in higher-dimensional spaces. Cutting an object into slices creates many parallel cross sections. The boundary of a cross section in
Papal Mass the ceremony, the pope was vested in the falda (a particular papal vestment which forms a long skirt extending beneath the hem of the alb), amice, alb, cincture, pectoral cross, stole, and a very long cope known as the "mantum" (or "papal mantle"). Finally, the papal tiara was placed on his head. The pope's solemn entry into St. Peter's Basilica was accompanied by the Silveri Symphony, a fanfare played on the trumpets of the Noble Guard. The entrance procession was headed by the cardinals, bishops, prelates, and those who composed the pontifical capella, vested according to their rank and in