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
Many Rivers to Cross Many Rivers to Cross "Many Rivers to Cross" is a song written and recorded in 1969 by Jimmy Cliff. It has since been recorded by many musicians, including Harry Nilsson, John Lennon, Joe Cocker, Percy Sledge, Desmond Dekker, UB40, Cher, The Brand New Heavies, Eric Burdon & The Animals, Marcia Hines, Toni Childs, Oleta Adams, Linda Ronstadt, Annie Lennox, Bryan Adams, and Jimmy Barnes. Cliff was aged 21 when he wrote and recorded the song in 1969. Cliff stated he wrote the song due to the trouble he was having making it as a successful musical artist after originally finding