Ceramics encompass such a vast array of materials that a concise definition is almost impossible. However, one workable definition of ceramics is a refractory, inorganic, and nonmetallic material.Ceramics can be divided into two classes: traditional ceramics and advanced ceramics.eramics encompass such a vast array of materials that a concise definition is almost impossible. However, one workable definition of ceramics is a refractory, inorganic, and nonmetallic material. Ceramics can be divided into two classes: traditional ceramics and advanced ceramics.
For other uses, see Leaves of Grass (disambiguation). Leaves of Grass is a poetry collection by the American poet Walt Whitman (1819â1892). Though the first edition was published in 1855, Whitman spent most of his professional life writing and re-writing Leaves of Grass, revising it multiple times until his death. This resulted in vastly different editions over four decadesâthe first a small book of twelve poems and the last a compilation of over 400.
This poem did not take on the title âSong of Myselfâ until the 1881 edition. Previous to that it had been titled âPoem of Walt Whitman, an Americanâ and, in the 1860, 1867, and 1871 editions, simply âWalt Whitman.â The poemâs shifting title suggests something of what Whitman was about in this piece.his most famous of Whitmanâs works was one of the original twelve pieces in the 1855 first edition of Leaves of Grass. Like most of the other poems, it too was revised extensively, reaching its final permutation in 1881. âSong of Myselfâ is a sprawling combination of biography, sermon, and poetic meditation.